March 2022 in “Annals of Bariatric Surgery” Protein supplements with zinc, iron, and B vitamins reduce hair loss after sleeve gastrectomy.
20 citations
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September 1998 in “PubMed” Gorillas in Gabon improved after protein supplements were added to their diet.
38 citations
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May 2000 in “Livestock production science” Giving high-quality protein or methionine supplements helps improve hair growth in Angora goats and, to a lesser extent, in Cashmere goats.
5 citations
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September 2023 in “Nutrients” Soy protein with isoflavones reduces wrinkles and improves skin hydration in postmenopausal women.
79 citations
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January 2017 in “Dermatology practical & conceptual” Correcting nutrient deficiencies may help with hair loss, but the benefits of supplements without a deficiency are uncertain and could be harmful.