Did you know that keratin, the protein that makes up 95% of hair, is made up of amino acids? Amino acids are molecules that combine to form proteins They help the body grow nails and hair, repair tissue, and perform many other bodily functions. Among its benefits, amino acids for hair increase the humidity of the scalp, relieve dandruff and strengthen the strands, making them resistant to external damage.
There are three types of amino acids: the essential ones (which the body cannot synthesize on its own and must come from food), the non-essential ones (which the body can synthesize) and the conditional ones (they are not essential, except in times of illness). or stress). To find the perfect balance —which is reflected in healthy hair—, the ideal is to receive help from all sides, starting with food and ending with treatments. Look how!
What are amino acids used for in hair?
Amino acids are responsible for the strength and structure of the hair. If your hair is weak or not growing as it should, your amino acid level is probably low. Likewise, amino acids for the hair allow the hair to retain moisture: they bind to the cuticle filling the spaces and creating a shiny appearance and a silky feeling. In scalp care, certain amino acids help control dandruff, whether dry or oily.
Depending on the amino acid used and the formulation of the hair product, the benefits can be different:
- Amino acids protect the hair. Amino acids fill the damaged spaces in the outer cuticle of the hair, which is its protective layer.
- They moisturize the hair. Some amino acids draw moisture into the hair and create a barrier to prevent moisture loss.
- They increase the volume. Amino acids are commonly found in shampoos to add body and volume. Small chain vegetable proteins or cellulose serve this purpose.
- They strengthen the hair. Amino acids such as cysteine and methionine provide strength to the hair shaft.
- They add shine. New ingredients like silk protein can make hair shiny.
- They thicken the hair. While the effect is temporary, amino acids are often used in protein-based thickening sprays. They can coat the hair and make it appear thicker, without weighing it down.
- They relieve dandruff. Sulfur amino acids have antimicrobial properties that control dandruff.
Although amino acids are suitable for all hair types, they are perfect for porous, brittle and curly hair.
Which amino acids are better for hair?
Cysteine is the most important essential amino acid for the Hair growth: its contribution of sulfur improves the strength, elasticity and texture of the hair. They also highlight arginine, which promotes blood circulation around the hair follicle; lysine, a restorative amino acid that supports the production of collagen; and methionine, which produces a substance that becomes collagen.
Sulfur amino acids, such as cysteine and methionine, help control dandruff by reducing the accumulation of skin cells and offer antimicrobial properties.
Finally, curly manes benefit from silk amino acids, such as sericin, which is highly moisturizing.
Are you worried about where to get them? Eggs (particularly egg whites) are the most complete source of protein, containing all the essential amino acids. Oily fish, quinoa, walnuts, chickpeas, lean meats, and low-fat cheese are other options.
It is also possible to increase the amino acid content of the hair through exposure to UV light, some products and intensive treatments.
Editor’s tip: The shampoo Y TRESemmé Botox Effect Conditioner restore the hair fiber for a visibly healthy mane. Enriched with lysine (an amino acid) and liquid protein, they intensively moisturize and help close the cuticle, rescuing even extremely damaged hair. They control frizz and excess volume, and replenish shine for a look salon-quality every day.
Another of our favorite products is the Bioexpert Silk Cocoon shampoo. Silkworm cocoon fiber is composed of proteins containing essential amino acids, with conditioning, strengthening, recovery and protective properties. 91% of its ingredients are of natural origin and it is free of salt, parabens, paraffin, alcohol and colorants.
What are the amino acids for hair straightening?
A hair treatment with amino acids helps improve the basic components of keratin, which is responsible for hair health. It comes in two forms: moisturizing and nourishing and progressive straightening. Cysteine is the ingredient used to straighten hair, although the treatment may also contain keratin, collagen and vegetable proteins. In any case, it is formaldehyde free.
To straighten hair, leave the treatment on for half an hour, wash with ice water, dry and flat iron as normal. The amino acid promises to nourish, rejuvenate, promote hair growth, repair brittle ends and moisturize hair. Likewise, it educates the shape of the hair, without leaving it straight as a board.
Editor’s tip: If you don’t want to straighten your hair, you can simply ask them to relax your curls or waves.
How long does straightening with amino acids last?
The straightening treatment requires two to four hours in the salon. The results of organic amino acids last between six and eight weeks, which means that they are not permanent.
What is the difference between amino acids and keratin?
The main difference is that amino acids for hair rebuild the internal structure of the hair fiber. On the other hand, proteins, such as keratin, do not manage to do it with the same ease because they are larger molecules.
Both amino acids and keratin are essential for hair to exist, you can’t have one without the other. The presence of amino acids will cause hair growth rich in keratin, while the keratin treatments They adhere keratin compounds to the outer shaft of the hair to strengthen and smooth it. Both treatments have positive effects.
How to care for hair after amino acids?
Half an hour after having performed a treatment with amino acids for your hair, you can wash it. If you have undergone another chemical process, such as a perm, wait two weeks to perform this treatment. If you plan to dye your hair, it’s best to do so immediately afterward.
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