Evidence supporting the use of: Blend (Amino Acid/Protein)
For the health condition: Hair (loss or thinning)

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Synopsis

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

Amino acid and protein blends are used to support hair growth and reduce hair loss based on the scientific understanding that hair is primarily composed of keratin, a protein built from amino acids. Several essential and non-essential amino acids—such as cysteine, methionine, lysine, and arginine—play crucial roles in the structure and growth of hair. Deficiencies in dietary protein or specific amino acids can lead to hair thinning or loss, especially in cases of malnutrition, restrictive diets, or certain medical conditions. Studies have shown that supplementing with amino acids or increasing protein intake can help restore hair growth in individuals with proven deficiencies. However, evidence for the benefits of amino acid/protein supplementation in the general population with normal dietary intake is limited. Clinical studies, mostly small in scale, suggest some improvement in hair parameters with amino acid blends or protein supplementation, but the overall quality of evidence is moderate and does not universally support widespread use outside of deficiency states. Therefore, while there is a scientific rationale and some supportive clinical data, the evidence is not robust, and further large-scale, high-quality studies are needed to confirm efficacy for most people experiencing hair loss or thinning.

More about Blend (Amino Acid/Protein)
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Products containing Blend (Amino Acid/Protein)

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