Evidence supporting the use of: Amino Acid Blend/Complex
For the body system: Hair

Links: Go back one page, Tool main page, Ingredients list, Health conditions list, Body systems list

Table of Contents

Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Amino acid blends or complexes are used in many hair health supplements based on the scientific understanding that hair is primarily made of protein, specifically keratin. Keratin itself is composed of various amino acids, including cysteine, methionine, lysine, and others. Scientific studies have demonstrated that deficiencies in certain amino acids can lead to hair thinning or loss. For example, cysteine and methionine are sulfur-containing amino acids critical for keratin structure, and their supplementation can improve hair strength and growth in individuals with deficiencies. Additionally, essential amino acids are required for the synthesis of new proteins by the hair follicle cells during the anagen (growth) phase. Some clinical trials and animal studies suggest that supplementation with specific amino acids may support hair structure and growth, particularly in cases of malnutrition or increased physiological demand.

However, evidence is more robust for specific amino acids rather than generic "blends" or "complexes," and the benefit for individuals without deficiencies is less clear. There is limited high-quality clinical research showing that amino acid blends significantly improve hair health in healthy individuals. Overall, the use of amino acid complexes for hair is grounded in biological plausibility and supported by some studies, but more research is needed to establish optimal formulations and their efficacy in the general population.

More about Amino Acid Blend/Complex
More about Hair

Products containing Amino Acid Blend/Complex

We currently have no products on Caring Sunshine that contain this ingredient.