Amino acids are essential for maintaining vibrant, healthy, and strong hair. These are the components of proteins, which give each hair strand its structural integrity. Hair that doesn’t get enough amino acids may become brittle, dry, and vulnerable to breakage.
These nutrients support elasticity, moisture retention, and even shine enhancement. Amino acids can help repair and strengthen hair from the inside out, regardless of the cause of damage—be it heat, color treatments, or environmental factors.
Amino acids can be obtained from specific foods, supplements, and hair care items. The general health and appearance of your hair can be significantly improved by knowing how to incorporate them into your routine.
| Amino Acid | Benefits for Hair |
| Cysteine | Promotes hair strength and repair, reducing breakage. |
| Arginine | Improves blood flow to the scalp, supporting hair growth. |
| Lysine | Helps in collagen production, which strengthens hair follicles. |
| Proline | Supports hair structure and elasticity, reducing damage. |
| How to Get Them | Found in foods like eggs, fish, dairy, nuts, and supplements. |
- What are amino acids
- Why hair needs amino acids
- How to find out about a lack of amino acids in the body and in the hair shaft
- Why are the amino acids of the hair destroyed
- Which amino acids are most important for healthy hair
- Glutamic acid
- Serine
- Arginine
- Glycine
- Tyrosine
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What are amino acids
From a biological perspective, the human body is a highly intricate network of interconnected protein molecules. These molecules are composed of unique amino acids known as proteinogenic amino acids. Non-proteinogenic standard amino acids also carry out vital functions, such as fatty acid transportation, lipid metabolism, hematopoiesis, nerve impulse transmission, muscle building, etc. The current state of life on Earth would not be possible without these organic compounds.
Additionally, stylists and trichologists believe that amino acids are extremely beneficial to hair at every stage of the formation of the hair shaft, from the bulb to the tip. Her curls appear dry, lifeless, split, and frizzy, and they are always tangled. Maybe all you need is some amino acids.
Why hair needs amino acids
Keratin makes up the majority of the 85% of proteins found in hair. Its strands are joined by flexible double helices. A chain of amino acids makes up each keratin spiral, and peptide bonds serve as links between adjacent amino acids. The flexible, robust, and long-lasting protein architecture of the hair shaft is the result of this process.
Why the protein structure of hair requires amino acids:
- to strengthen the hair shaft and increase its resistance to damage;
- to normalize hair growth and cycle anagen-catagen-telogen ;
- to maintain the density and volume of hair along the entire length.
Fascinating fact: amino acids play a role in the synthesis of collagen, the renowned "protein of youth" of the skin, which influences hair density and is essential for healthy hair growth. Studies (e.g., "Androgenetic alopecia and microinflammation", International Journal of Dermatology, 2000) have demonstrated that collagen hardening and follicle membrane thickening cause compression of the bulb, which in turn initiates the process of premature hair loss.
The synthesis of collagen can be restored by following a diet high in amino acids and using a specialized method that leaves aminexil in the composition. Ampoules Scalpsync from Biolage and serums Aminexil Advanced from L’Oréal Professionnel are recommended by an expert team. As directed by the manufacturer, the anti-hair loss product should be applied as often as possible to a clean, dry scalp in courses of six to eight weeks.
How to find out about a lack of amino acids in the body and in the hair shaft
A lack of amino acids puts nearly every bodily system at risk, including the thyroid gland, anemia, obesity, and, on the other hand, weight loss, muscular atrophy, arthritis, memory loss, and depressive disorders. Positive news has arrived! It is extremely difficult to obtain a scarce condition without a full-fledged diet. In any event, a qualified physician should diagnose any associated diseases and the deficiency of useful proteins.
The body is not harmed when the amino acid reserve in the hair rod structure is depleted. However, the fact that it is so obviously visible can have a detrimental effect on one’s self-esteem.
When amino acids are being severely lost from hair:
- They become dull and rough to the touch;
- thin out in length, lose elasticity;
- Actively breaking In the process of combing , Sexing.
That a trichoscope will appear to him instead of the eye. Seeking advice from a trichologist will clarify everything.
Why are the amino acids of the hair destroyed
Clarification and chemical straightening rank first on the list of things that can harm the hair’s amino acid structure because they have a strong oxidative effect. UV rays, which are extremely harmful to hair rays, and permanent perms are tied for second place. The top three harmful factors are closed by hot styling with stylers at high temperatures.
Interesting fact: a 2020 study by the L’Oréal Advanced Research Center found that regular hair coloring without bleaching causes less strand damage than stylers.
The hair’s protein structure is harmed and traumatized by strong external influences. As a result, the peptide bonds that hold amino acids together as well as the amino acids themselves are broken. Although it sounds and appears like a complete catastrophe, carefully chosen complex care can nearly restore damaged strands to their original state. You will then discover which active ingredients work best with the formula and which amino acids are essential for hair care.
Which amino acids are most important for healthy hair
At least 18 amino acids, each of which has a distinct function, are synthesized in the follicle to give hair its natural strength and flexibility. Thus, sulfur found in cystine creates disulfide (two-sulfur) bridges, which determine whether hair is straight or wavy.
Let’s examine five amino acids that were created in a lab setting in more detail.
Glutamic acid
As a member of the replaceable group, glutamic acid is produced naturally by the human body. The priceless organic compound, however, does not penetrate the damaged and already grown hair.
15% of hair’s amino acid composition is found there.
Glutamic acid designation in cosmetics
Serine
Possesses conditioning and antistatic properties. Serine is used in care products to help strengthen and restore the cuticle’s ability to retain moisture.
10% of hair’s amino acid composition is found there.
In the world of cosmetics, serine
Arginine
Shields the hair’s internal structure from harm. It is frequently utilized in cosmetic products to treat alopecia because of its collagenogenic qualities.
Hair contains 9% of its amino acid composition.
Arginine is the designation in cosmetics
Glycine
The amino acid’s capacity to reach deep into the hair makes it special. increases the hair shaft’s resistance to mechanical friction by encouraging compaction.
Content: 5% of hair’s amino acid composition
Glycine is the designation in cosmetics
Tyrosine
It is more vulnerable to destruction from harmful substances than other amino acids. This is why it’s best to use routine cosmetic care to help restore tyrosine losses.
Content: 2% of hair’s amino acid composition
Tyrosine is the designation in cosmetics
Amino acids are essential for maintaining healthy, lustrous, and robust hair. They provide your hair’s structure with the necessary building blocks, promote growth, and aid in damage repair.
You can use a balanced diet or supplements designed to support hair health to make sure your hair gets the essential amino acids. Foods high in protein, such as fish, legumes, and eggs, are great providers.
Your hair’s texture and appearance can be noticeably improved by regularly feeding it with amino acids, which also makes styling and managing it easier. Taking good care of your hair can have a significant impact on its general health and vigor.
Since amino acids are the building blocks of keratin, the protein that forms hair, they are necessary for strong, healthy hair growth. They increase elasticity, guard against breakage, and aid in the repair of damaged strands. You can obtain amino acids through hair care products made especially to raise their levels or by eating a well-balanced, high-protein diet. Your hair will become stronger, glossier, and smoother if you incorporate them into your routine.
