Keratin straightening: harm and benefits for hair. The benefits and harms of keratin for hair - a review of cosmetics for treatment, restoration or straightening with prices Keratin oil benefits and harms

The beauty industry does not stand still, and every year more and more new care procedures appear. One of these innovations was keratin hair straightening. This procedure immediately gained popularity among the fair sex. After all, everything in a few hours, long curls acquired a well-groomed appearance and perfect smoothness. And the achieved effect lasted for six months! But is the composition safe for your strands and is keratin hair straightening harmful? Let's try to understand in detail all the intricacies of this hairdressing service.

Straightening with keratin: what is the essence of the procedure

Natural hair for the most part consists of high-strength protein compounds. Keratin is part of its stratum corneum, protecting our strands from the negative effects of the environment.

The main indication for keratin straightening is restoration of hair structure by saturating it with protein structures. The composition seems to seal the hair from all sides, reliably protecting it from all adverse factors. The procedure allows you to renew every hair from root to tip, creating the effect of perfect smoothness.

Those who used keratin at home in masks and shampoos did not feel the stunning effect. Yes, the hair began to look more well-groomed, but such a result can be achieved from any semi-professional product. What's the secret? Everything is simple here - high temperatures. The denaturation temperature of keratin is 229 0. And in order for it to penetrate deep into the structure and really firmly attach to the hair, each fibrillar protein molecule must be heated to this state. Therefore, enriching conventional care products with keratin does not give such a stunning result.

The benefits of keratin straightening

Perhaps not everything is so catastrophic, and keratin straightening is really good for hair. After all, this procedure really has a lot of advantages:

• Hair after the procedure looks healthy and strong. They do not tangle, are easy to style and retain their smoothness even in rainy weather.
• Keratin does not have a negative effect on the hair structure. So the procedure can be used on thin and weakened hair.
• Keratinization provides a long-term effect, and the achieved result lasts for up to 6 months.
• The composition applied to the strands provides the hair with reliable protection from the sun, wind and temperature changes.
• You can safely wear hats in the cold season, without worrying that the hairstyle will wrinkle or your hair will become electrified after contact with synthetic material.
• Keratin composition restores strands damaged by dyes and perms.
• The keratinization procedure can be safely combined with hair coloring. The protein does not react with the active components of the coloring composition, which is why it does not require correction of the paint exposure time.

But if everything is so rosy, why are the opinions of trichologists divided about the safety of the procedure for your hair?

Harm of keratinization

Many girls have already appreciated the advantages of keratin straightening. But the debate about the dangers and benefits surrounding the caring procedure does not subside. Although, evaluating the results of the masters, it is difficult to imagine that the resulting effect is achieved by a method of harmful effects on the hair. Let's reveal the secrets that hair stylists are silent about:

• Impregnation with keratin composition makes hair heavier. And this puts additional stress on the hair follicles, making them weaker. Very often this leads to hair brittleness and hair loss.
• Under its own weight, the strands are smoothed out, and the hairstyle loses volume. So for those with thin hair, the resulting effect may differ from what was expected.
• The treated hair is located very close to each other, which increases the intensity of impregnation of the strands with sebum. For this reason, you have to wash your hair every two days maximum. And everyone knows that frequent washing is not the best for the condition of the hair and scalp.
• High temperatures are required to denature keratin. Therefore, the strands are processed with an iron heated to 230 0, which is catastrophic for the hair.
• Unscrupulous craftsmen use formaldehyde in keratin mixtures, known for its harmful effects on the body.. In addition, during the heating process, formaldehyde vapor evaporates and enters the respiratory tract, causing severe dizziness and other symptoms of intoxication.

There is no clear answer to the question of whether keratin hair straightening is harmful. And the final result will depend on the qualifications of the master and the quality of the composition used.

Do not try to perform the procedure yourself at home. Due to insufficient heating of the strands, you can only worsen the condition of your hair. And the use of cheap products can lead to poisoning with toxic fumes.

Recommendations: how to protect your hair from harmful influences

If you don't mind the damage that can be done to your strands, then make sure that the damage is kept to a minimum. Some recommendations will help you with this:

1. Do not use the services of professionals who offer to perform the procedure at home. Typically, such offers attract low prices. But this is not a situation where you can save money.
2. A powerful hood must be installed in the room where keratinization is carried out. Check this point while recording.
3. Choose keratinizing formulations without formaldehyde. Toxic products will cost several times less than a high-quality keratin mixture. Therefore, many masters, in order to save money, give preference to them. But in our case, health should come first.
4. All precautions must be observed and the technique of processing strands must be strictly followed. Please note that the keratin composition cannot be diluted with water. In the final formula, water molecules can disrupt protein structures, depriving the composition of all the necessary properties.
5. Hair treated with keratin composition cannot be dried with hot air. Premature exposure to high temperatures can lead to protein coagulation and destruction of the hair structure. Using a hairdryer is only possible on a cold setting.
6. When applying the product, avoid contact with the skin. The rich chemical composition may well cause a serious allergic reaction..

If you carefully consider all the nuances and take into account the above recommendations, potential harm to your hair from keratin straightening can be avoided.

Keratinization and pregnancy: are there any risks?

Separately, it is worth paying attention to the possibility of carrying out the procedure for girls during pregnancy. Expectant mothers want to be beautiful and well-groomed more than ever. But it’s worth holding off on chemical experiments on hair. Even regular coloring is not recommended during this period, let alone straightening with keratin.

The whole problem lies, again, in formaldehyde. This substance has a high level of tetragenicity and can lead to disruption of embryonic development. Yes, during the procedure masks are used to prevent toxic fumes from entering the respiratory tract. But this degree of protection is not enough for a girl in position, since the composition can be absorbed through the scalp.

In addition, do not forget that during pregnancy a woman’s hormonal levels are unstable, and it will be extremely difficult to predict the result of the procedure. There is a very high probability that the composition will not have any effect on the hair or will fluff it up even more.

The duration of the procedure is 3-4 hours. And sitting motionless in a chair for a long time can provoke the appearance of edema in a pregnant woman.

If you really want to use a straightening service during pregnancy, choose American keratinization using safe ingredients. The absence of formaldehyde and a well-ventilated office are the only possible options.

So there is no clear answer whether keratin hair straightening is harmful or not. But if you strictly follow the technology and use a natural composition without chemical impurities, the damage to the strands will be minimized and the benefits will be maximum.

Many factors influence the strength and beauty of hair. Lack of vitamins, coloring, thermal and chemical influences, sun rays, chlorinated water - these are the factors due to which hairs lose their main component - keratin. Keratin hair restoration will help compensate for the lack of this protein.

When hair loses keratin, its structure is damaged, the cuticles open, and as a result, the hairs become dull, porous, tangled all the time and difficult to comb after washing. This salon procedure not only straightens the strands, but also restores their structure, providing a therapeutic effect. Since this trend came to us from South America, it is also called the Brazilian straightening.

Brazilian keratin hair straightening– a method of long-term impact on the hair structure by applying protein compounds under high temperature using a straightener.

Thus, during the process of keratin restoration, natural keratin and a protective coating that are as similar in composition as possible are applied to the hair, which are firmly sealed on the surface of the hair under the action of a straightening iron. This procedure allows you to restore the missing protein, smooth the hair, eliminate its porosity and cuticle. The braids become silky, smooth and heavy, making caring for them after the procedure much easier.

It’s paradoxical that blondes want to dye their hair black, while brunettes want to dye their locks white. In addition, owners of curls every now and then want to straighten their curls, and straight-haired girls, by all means, need to curl their curls. And keratin straightening, which is its undeniable advantage, does not change the structure of the hairs. Therefore, it makes it possible to both wear straight hair and curl it into graceful curls. The effect lasts about 12-16 weeks, after which you can do the procedure again.

The dangers of keratin straightening

Along with the advent of technology, many rumors arose about the pros and cons of keratin restoration, what kind of care is needed, whether it is possible to wash your hair, etc. The Internet is replete with all sorts of warnings about the dangers of the procedure and many shocking photos with the “consequences” of using the method . Let's figure out how harmful keratin hair straightening is and whether it is generally harmful.

In the USA and almost all Hollywood stars cannot imagine hair care without keratin straightening. But in Canada and EU countries this method is actually prohibited. The fact is that during the procedure, substances (formaldehyde) that are hazardous to health are released into the surrounding atmosphere. This is a very dangerous compound that causes headaches, dizziness and difficulty breathing.

If you do recovery sessions correctly, you can avoid negative impacts and the harm will be minimized. If the master and the visitor follow simple rules (use of gloves and masks, a well-ventilated room, use of a high-quality product for keratin hair straightening), the harm from the procedure will be no more than if you spend 10 minutes near a busy highway.

At the same time, such hair requires special, but not complicated care, so as not to provoke the release of formaldehyde:

• firstly, do not wash your hair for the first 72 hours after a keratin restoration session;
• secondly, you cannot dry your hair with a hairdryer, no matter what mode is chosen;
• thirdly, carefully ensure that keratin hair straightening products are not applied to the scalp.

Thus, the correct technology for applying the composition reduces the negative impact to almost zero and gives a positive effect, significantly facilitating care. However, the procedure has other important pros and cons.

Advantages and disadvantages of keratin restoration

Brazilian keratin hair straightening is indicated in cases where very curly braids cannot be styled and combed, when the hair structure is very damaged, when you want to restore beauty, shine and simplify hair care.

Contraindications are: scalp damage, severe hair loss, precancerous condition. It is also better not to do this procedure for pregnant women. The instructions for each product say that it is strictly contraindicated for pregnant women. And everyone else can safely start restoring their hair after suffering stress, highlighting or bleaching.

Pros of restoring keratin in hair:

1. Easy hair care: strands can be combed quickly even after washing, are easy to style, do not get tangled, and do not frizz.
2. The procedure does not change the structure of the hairs and is suitable for any type: thick, sparse, thin, thick hairs will be a plus.
3. Shiny and smooth styling remains normal even when exposed to wind and water, without turning into a bunch of hay after rain. You can safely go for a walk.
4. Long lasting effect. Modern technologies make it possible to extend the recovery effect up to 4-5 months.
5. Protects curls from the negative effects of the environment: city dust, polluted air, sunlight, etc.
6. You can also forget about the “power plant” effect on your head in winter from wearing a hat or scarf.
7. Hair can be left straight or curled to suit your mood, and straightening adjustments are very easy and quick.
8. Removes the negative effects after perm.
9. Hair can be dyed - a very significant plus.

Like any cosmetic procedure, hair straightening with keratin has its disadvantages:

• Do not wash your hair for 72 hours after a straightening session;
• prohibited for pregnant women;
• Duration of the procedure: 3-5 hours;
• an allergic reaction may occur;
• for 72 hours you cannot wear braids, ponytails, buns or have any other mechanical impact on your hair (hairpins, clips, bobby pins, etc. are prohibited);
• During the procedure, tearing of the eyes may occur;
• risk of formaldehyde poisoning if the room is poorly ventilated;
• the need to cut the ends after a while, since they will break off if they are split before the session;
• There may be an appearance of decreased volume and the effect of greasy hair;
• You cannot dye your hair for 14-20 days after restoration with keratin, so it is better to dye your strands before the procedure;
• You can only wash your hair with sulfate-free shampoo - a significant disadvantage, since you will have to completely change your hair care products.

Summarizing all of the above, we can draw the following conclusions: keratin hair straightening is a great way to simplify the care of your hair and give it a beautiful and healthy look. Hair can be dyed, braided, styled, curled, etc. However, this procedure can only be done in a well-ventilated area and by a professional, otherwise it can cause irreparable harm to health. The choice is yours!

Preparing a keratin hair mask

The beauty of hair plays a very important role in the life of a modern woman. A keratin hair mask is one of the many ways to combat hair loss, lack of shine, fragility and split ends.

Keratin is a substance consisting of 90% protein, which creates the structure of the hair, protecting it from harmful factors, such as:

• applying paint;
• heat treatment;
• curl extensions.

With a lack of this substance, curls lose their health and appearance.

When a keratin hair mask is applied to the hair surface, keratin protein compounds pass through damaged areas, providing a restorative and healing effect.

It must be taken into account that keratin only affects the surface of the curls: inside they will remain damaged. Therefore, to achieve an effective result, a comprehensive course of treatment is necessary. Even externally healthy hair requires prevention and constant use of masks.

There is a keratin hair mask with a smoothing effect. It does provide a smoothing effect of up to 90%, but if you have fluffy curls, the improvements will not be as significant.

Keratin mask at home

The decision whether to apply a hair mask at home or visit a beauty salon is yours.

In any case, if the procedure is carried out correctly, a positive result will not take long to arrive.

But in the salon you can carry out comprehensive hair treatment, after which it can be transformed.

If you still decide to prepare a hair mask yourself, you can use 1 of the following recipes:

1. Gelatin mask with keratin. To prepare it, you need to dilute 1 tbsp. l. gelatin in a glass of warm water. After this, add 1 tsp. apple cider vinegar, essential oils of jasmine, rosemary and sage. Apply to clean, damp hair for 20 minutes, then rinse with warm water and dry with a towel.

2. Keratin mask based on aloe. It contains lemon juice, 2 drops of rosemary oil and 50 grams of aloe. These ingredients are mixed and applied to clean, dry hair. After 10 minutes, wash off the mask with warm water.

3. Keratin mask with salt. Regular rock salt can improve the condition of the scalp. If dandruff appears and hair loss occurs, you need to dilute the salt in warm water and rub it into the skin. Apply to clean, damp hair and rinse after 5 minutes.

4. Mask with keratin based on egg yolk. To prepare it, you need to separate the yolk from the white, beat, add 1 tsp. salt and mix it with 0.5 tsp. soda Apply to clean, damp hair for 10-15 minutes, then rinse with warm water.

Each recipe is aimed at combating a specific set of problems. You need to choose the composition based on what effect you want to get.

Application rules

The effect of using homemade masks can be increased if you follow these rules:

• during the first 3 days after the hair healing course, it is recommended not to wash your hair, not to use elastic bands and hair clips, and not to apply other masks;
• It is better to perform coloring before a wellness course;
• Such procedures should be carried out no more than 2 times a week. If you have allergies or problems with vitamins, you should consult your doctor;
• do not repeat the procedure earlier than after 6 months.

Treatment should be carried out for 2 weeks. With the right approach, the effect of the procedures can last for six months.

The keratin hair straightening procedure has gained extraordinary popularity, promising to make curls shiny, smooth, manageable, radiant and well-groomed. The procedure should facilitate easy combing. It promises to prevent hair tangling caused by wind, sun, moisture and sea water. But is this really so?

Irritation and hair loss are the main disadvantages of the procedure

Experts say: keratin hair straightening has a lot of contraindications. What harm does the procedure cause? Chemicals included in the composition for application to curls can cause severe irritation if there is already damage to the scalp.

Fibrillar protein also causes harm. Under its influence, the strands become heavy. The load on the root system becomes large. This leads to hair loss. If such a problem existed before keratin straightening, then it only gets worse.

There are also aesthetic disadvantages of the procedure. After it is carried out, a significant decrease in the volume of hair is often noted. Other negative aspects include:

• destruction of the chemical integrity of the hair structure;
• their dullness;
• quick washout of shade on colored strands;
• fragility;
• dryness;
• tip section.

As a result of keratin straightening, curls quickly become dirty and greasy. You have to wash them almost every day, which negatively affects the health of your curls. Sulfate-free shampoos, which are recommended to be used after such a procedure, cannot cope with the problem.

What are the dangers of straightening products?

These aesthetic problems are a trifle if we talk about the harm that fumes from the composition cause. The preparation, which is applied to the hair according to technology, contains formaldehyde. This compound is dangerous because it forms harmful vapors when exposed to high temperatures. They enter the respiratory tract, the mucous membranes of the eyes, nose and mouth. The result is poisoning and serious allergic reactions.

Often employees of beauty studios claim that keratin straightening has no contraindications or side effects. This is absolutely not true! Only unscrupulous hairdressers can say this. Professionalism and high-quality ventilation of the room do not in any way minimize the harm of the procedure. In any conditions, toxic fumes can negatively affect the client’s condition if they get on the cornea of ​​the eyes. This is dangerous because it causes:

• severe tearing;
• burning;
• redness;

These manifestations are unpleasant, but there are also more serious consequences of the procedure. These are leukemia, asthma, nasopharyngeal carcinoma, poisoning, accompanied by dizziness, nausea, vomiting, diarrhea, and nosebleeds. It is dangerous to carry out keratin straightening on your own. There is no special equipment at home that can release harmful fumes outside. Plus, during the procedure you should tilt your head strongly. This leads to inhalation of hazardous fumes in large quantities.

It’s not just cosmetic formulations containing formaldehyde that are dangerous. No less harmful are drugs based on the use of derivatives of aldehyde-containing acids and aldehydes. Under the influence of heat treatment, they lead to the formation of the same formaldehyde.

Advertising tricks to the detriment of health and beauty

There is another unsightly side of the procedure. Manufacturers of cosmetics with keratin for hair straightening claim: a useful drug, which in a certain amount is included in the composition of the curls themselves, is able to penetrate into the structure of the strands. It is a myth! Chemists debunk it. After a number of studies, it was proven that keratin molecules are not able to penetrate the hair structure. This is a simple advertisement that allows you to attract a large number of customers.

The very essence of the procedure, which is called hair health, raises no less questions. To straighten the strands, make them manageable, smooth and shiny, it is suggested to heat the curls. Allegedly, under the influence of high temperatures, the protein coagulates, forming a protective film. But just think about it: is it possible to improve the health of wet hair by heating it to 230 degrees? What if you process them this way 10 times? In this state, the strands become brittle and brittle. As a result, of course, you can straighten your curls. But what happens to the “native” keratin and other proteins that make up the strands? History is silent about this. After all, telling the truth is unprofitable!

Keratin straightening is a technique that gives only a temporary visual effect. As practice shows, it simply destroys curls. So you should think about the results in advance.

It has become very popular due to the possibility of it being carried out not only in a beauty salon, but also at home. Information about smoothing products from manufacturers contains only positive descriptions of the results, but in practice this is not entirely true. You will learn from our article what the negative consequences of this procedure may be.

What is this procedure

Due to the application of a special composition to the hair, the structure of the strands changes due to the destruction of protein bonds. The curls straighten and become more obedient, denser and more elastic. However, these changes are reversible, and The effect of keratin hair straightening is temporary. The main factor influencing the duration of the result is the work of the master. The period varies from 2 months to six months.

Attention! Application technique plays a significant role. For this reason, you can trust your hairdresser with your hair only if he has the appropriate certificates.

The procedure consists of the following algorithm of actions:

1. The specialist begins the standard smoothing process by washing the client’s hair. To do this, use a specific shampoo designed for cleansing. The product is applied and washed off the strands several times. This measure helps prepare the hair scales for opening, which is important for deep absorption of the composition.
2. At the second stage, the master will apply the drug, making a small indent from the root zone (about 2 cm). It is left to act for half an hour.
3. Then the remaining product is removed with a comb. Typically a fine-toothed tool is used.
4. The strands are dried with a cool stream of air using a hairdryer and proceed to the final stage.
5. When the hair is completely dry, apply the treatment with a straightening iron. To do this, each strand is fixed with the device and passed over it several times. The temperature regime and the number of repetitions depend on the type of curls and their condition. The minimum value is 210 degrees.
6. The last step depends on the product used. Some are washed off immediately after the exposure time ends, while others remain on the hair for up to 3 days.

The drug must be of high quality. Otherwise, keratin straightening will cause significant harm to your hair.

Washing out keratin will take longer if you use sulfate-free shampoo to wash your strands.

Contraindications

The keratin straightening procedure is not recommended for all girls. The main disadvantage of using chemicals for smoothing is the use of formaldehyde. When passed through treated strands with an iron, this substance releases fumes that are hazardous to health.

Without it, you won’t be able to make your curls even, since it is included in any product for this procedure. This is necessary when changing protein compounds and straightening unruly curls. Only the concentration of the chemical in preparations from different manufacturers varies.

Formaldehyde vapors pose a danger to the client and the specialist. Among the side effects:

1. Negative effect on vision and central nervous system.
2. Migraine.
3. Irritation of mucous membranes and subsequent tearing.

Keratin straightening is contraindicated in the case of a precancerous condition. Long-term installation should only be done in a ventilated area. If this point is not followed there is a high chance of poisoning from formaldehyde fumes.

Kits for the Brazilian procedure use formulations where formaldehyde is replaced with plant extracts. For this reason, the cost of natural drugs is much higher than their analogues with a chemical base.

There are other less dangerous factors, but also accompanied by unpleasant consequences.

Thinning strands and weakness. If the hair is not strong and thick, usually after the procedure the condition of the curls worsens even more, although there is widespread talk about a therapeutic purpose.

After impregnation with a keratin preparation, the strands become heavier, as a result of which the load on already weakened follicles increases. The result is baldness.

The procedure also provokes volume loss. Frizzy curls usually return to their original state faster, since the styling lasts less.

Allergy to substances of keratin preparations or diseases of the scalp. In the second case, you should consult a dermatologist before performing the procedure.

Consequences

Creating long-term styling requires some care and constant attention to your hair. After smoothing the curls, it is allowed to wash them only with sulfate-free shampoos. Straightened strands often begin to get dirty and greasy faster. Due to the lost volume, sebum production occurs more frequently.

Below are a number of factors that are not considered contraindications. However, they may be decisive when deciding whether to undergo a keratin straightening procedure:

• restrictions on washing curls and coloring them after smoothing;
• For some time it is forbidden to visit baths, swimming pools and saunas, since streams of moist hot air will destroy the keratin layer, and therefore it is pointless to do straightening if you are planning a vacation at the seaside;
• the procedure can cause split ends, which will cause gradual destruction of the entire hair structure.

An important factor is that the minimum working time of the master when smoothing strands is 3 hours, and the maximum is 5 hours. Then for another 3 days any interaction of hair with moisture, as well as styling, is prohibited.

Doctors' opinion

Trichologists say that only people with very unruly and curly hair should undergo keratin straightening. You should not immediately use this method if you can find an alternative solution without the use of aggressive components such as formaldehyde.

There are also positive characteristics of doctors. However, most doctors advise deciding to undergo keratin straightening only if there are no health problems. The absence of contraindications and chronic diseases is the main criterion.

Pros and cons of keratin straightening

Although there is a risk caused by inhaling formaldehyde fumes, The procedure has several advantages:

1. The result of straightening is a healthy appearance of curls. They are protected from tangling and are easier to style. Even rainy weather does not cause fluffiness.
2. Long-term preservation of the effect of smooth hair - up to six months.
3. Application of the composition will provide your hair with reliable protection from the harmful effects of weather factors and temperature fluctuations.
4. The hair is not electrified, and the styling is maintained even under a hat, which is especially important in winter.

Important! Curls dyed before keratin straightening retain their color longer, but the original shade becomes 1-2 shades lighter. You can read more about hair coloring before and after the procedure on our website.

If you look at photographs of clients before and after the procedure, it is difficult to realize that the effect was achieved through harmful effects on the hair. Hairdressers rarely talk about such disadvantages:

1. Hair treated with formaldehyde will become too heavy for follicles damaged by dyeing or other external factors. Excessive load will cause it to fall out.
2. Under conditions of heaviness, the strands will straighten and the volume will decrease.
3. Owners of thin curls should abandon keratin styling, as the result will upset them with an even greater decrease in the density of their hair.
4. After treatment, the impregnation will intensify under the influence of sebum. The hair washing interval will be reduced to 1–2 days. Frequent exposure to shampoo does not have the best effect on the health of the hair and root zone.
5. Denaturation of liquid protein requires intense thermal exposure, which is provided by the straightener at an operating mode of 230 degrees, and this causes serious damage.
6. The use of formaldehyde mixtures is accompanied by side effects such as intoxication and dizziness due to inhalation of vapors when heated.

The harm from keratin preparations is undeniable. Whether the beauty of hair is worth such sacrifices is up to the client to decide. Of no small importance is the qualifications of the hairdresser and the quality of the product used in the processing process.

You should not try to repeat the procedure at home, as incorrectly chosen temperature conditions or the slightest deviations from the instructions can worsen your hair. The possibility of poisoning due to inhalation of formaldehyde vapor cannot be excluded.

Customer Reviews

Any procedure has positive and negative sides. Reviews about the consequences of keratin hair straightening are also different. This can easily be explained by the individual characteristics of the structure of the curl, which leads to different consequences of the use of smoothing compounds.

Julia, Voronezh

Pros:

• wonderful effect;
• intensive nutrition;
• hair looks well-groomed.

Minuses: not detected.

I have long wanted to try this procedure for myself. I found all the details on the Internet and studied the list of the most popular drugs, as well as the duration of the effect of their use. After consulting with a qualified professional, I decided I was ready to give it a try.

The process took considerable time, about four hours. I washed my hair with shampoo three times; on the last application, the product was left for about 15 minutes to absorb. Afterwards, a keratin composition is applied and each strand is pulled out very carefully so as not to burn the curls. The temperature setting of the iron is different for each hair type.

Then the applied mixture is thoroughly washed off. Hair is treated with balm. The product is left for 15–20 minutes. Next, the mask is washed off and the hair is dried with a hairdryer. The effect of perfectly smooth strands, even and shiny, like the models in magazines, simply shocked me. I used to always straighten my long, dyed hair with an iron to make it look more attractive and well-groomed.

I was even more surprised that after the first wash with shampoo without conditioner, the effect did not evaporate. The strands remained straight and looked healthier than before. Compared to lamination, the result was not even close! Even after 3 months, my curls delight me with their smoothness. As soon as the composition is washed off, I will definitely do the procedure again. I really like her.

Christina, Samara

Pros: perfect smoothness.

Minuses:

• the result does not last long;
• high cost of the procedure;
• unsafe process;
• the hair is ruined.

The wavy strands on my head resemble afro curls. This causes a lot of inconvenience: it is difficult to comb, and styling is simply impossible. On a cloudy day, your hair becomes like a ball. I have always envied girls with beautiful flowing locks. I can only make a bun. This is very disappointing.

One day I came across an advertisement for keratin straightening on the Internet. The bad reviews from those who have already tried this hairdressing service did not bother me. The procedure seemed like a way out of the situation, I was very happy that I had found a solution. I didn’t have to look for a specialist for a long time, nor did I have to make an appointment. The cost of smoothing for hair of my length turned out to be very high - 4,500 rubles.

I knew that the effect of not all drugs is good; there was especially a lot of negativity about Coco Choco cosmetics. The master used a mixture from a Japanese manufacturer, I don’t remember the exact name. Most reviews about the product were positive.

In the salon, the hairdresser washed the hair with a special shampoo, and then prepared a bowl and poured the composition into it. The smell was pungent but pleasant. The strands were divided into zones and each was coated with a keratin preparation. After complete treatment, it was necessary to wait from 40 minutes to an hour.

Then the specialist went over each curl with an iron and combed it with a comb. There was an unbearably pungent odor coming from the straightener. How the girl was able to withstand the entire process without a special mask is unclear. However, there was nowhere to go and we had to endure it, inhaling harmful fumes from the chemicals.

The result made me happy. The effect cannot be compared with what a hairdryer gives. The specialist told me about the taboos of washing, stabbing and exposure to water. In the morning I was afraid to leave the house - it felt like a bucket of grease had been poured on my hair. They hung like icicles, the volume evaporated. It looked terrible.

So I had to go to school. I couldn't wait until the evening to wash my hair. Immediately after the shower, curls appeared at the roots, and after the third use of shampoo, the strands returned to their natural state.

There was no limit to disappointment. At the salon they explained to me that the effect of the keratin product accumulates, and for such curly curls you need to re-treat it 2 more times.

I agreed. I was straightened three times with a break of 4 months. Only later did the mistake become so obvious. I had to spend a lot of money on treating my hair, but for a year now it has led to nothing. Now it became clear to me that natural beauty is given for a reason, and curls look very original.

Polina, Perm

Pros: smoothness and shine.

Flaws: short-lived effect, restrictions in the first three days.

The hairdresser who gave me my haircut persuaded me to have this procedure. Without delving into the details too much, I agreed. Straightening took a little over two hours. In practice, it turned out to be very difficult to endure three days without washing and piercing.

My hair kept getting in the way and getting into my eyes. Later I realized that now I would have to constantly walk with straight hair, and this would get boring. I didn’t feel any benefit, although I spent more than 5 thousand rubles. The strands became thinner and began to break. I don't want to do the procedure anymore.

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