Evidence supporting the use of: Proprietary Blend (Amino Acid/Protein)
For the body system: Nails

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Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Amino acids and proteins are fundamental components in the structure of nails. Keratin, the primary protein that makes up nails, is synthesized from amino acids, particularly cysteine, methionine, and others. Several studies have shown that inadequate protein intake can result in brittle, weak, or slow-growing nails, while sufficient dietary protein and amino acids support healthy nail structure and growth. Clinical research supports that supplementation with certain amino acids (notably cysteine and methionine) may improve nail strength in individuals with deficiencies or increased needs, though evidence in healthy individuals is less robust. Additionally, collagen peptides and other protein-rich supplements have been investigated for their role in nail health, with some studies indicating reduced frequency of broken nails and increased nail growth rates among participants. However, the evidence is generally stronger for populations with suboptimal protein status. Overall, there is scientific rationale and supporting evidence for the inclusion of amino acids and proteins to support nail health, though benefits may be most pronounced in those with dietary insufficiency.

More about Proprietary Blend (Amino Acid/Protein)
More about Nails

Other body systems supported by Proprietary Blend (Amino Acid/Protein)

Brain
Immune System
Intestinal System
Muscles
Nails
Skin

Products containing Proprietary Blend (Amino Acid/Protein)

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