30 citations
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September 2018 in “International Journal of Cosmetic Science” Bleaching hair causes severe structural and chemical damage, including protein loss and oxidation.
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.
12 citations
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August 1984 in “Genetics Research” The N gene affects the protein makeup of mouse hair.
7 citations
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January 1982 in “Acta agriculturae Scandinavica” Mink use L-methionine and L-cystine slightly better than natural amino acids for hair growth, but D-methionine is not effective.
19 citations
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November 2018 in “Nutrients” Annurca apple extract may protect mouse hair from damage by chemotherapy and could help treat hair loss without promoting cancer growth.