Evidence supporting the use of: Bovine protein
For the body system: Hair

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Synopsis

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

Bovine protein, typically derived from sources such as beef or bovine collagen, is used in various dietary supplements and products aimed at supporting hair health. The rationale is that hair is primarily composed of the protein keratin, and adequate dietary protein intake is essential for hair growth and maintenance. Several studies show that protein deficiency can lead to hair thinning or loss, and restoring adequate protein can reverse these effects. Additionally, bovine collagen contains amino acids—such as proline and glycine—that are important for the structure of keratin. However, the evidence supporting the direct benefit of bovine protein supplementation for hair health in otherwise healthy individuals is moderate. While there are some clinical studies and reviews suggesting that collagen peptides (including those sourced from bovine protein) may support skin and possibly hair health, the research is not robust or hair-specific. Most benefits are extrapolated from the general importance of protein in the diet and from anecdotal or small-scale studies. There is also traditional use in some cultures of consuming animal proteins, including bovine, for general vitality and hair health, but modern scientific validation remains limited. In summary, while protein (including bovine-derived) is essential for hair, the direct use of bovine protein supplements for improving hair health has moderate scientific backing, primarily in the context of correcting deficiencies rather than enhancing hair in well-nourished individuals.

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Products containing bovine protein

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