65 citations
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January 2009 in “Annals of Dermatology” In this study, oral zinc supplementation for twelve weeks increased serum zinc levels in alopecia areata patients with low zinc, showing positive hair regrowth in 66.7% of participants, though this was not statistically significant.
22 citations
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December 1992 in “The journal of pediatrics/The Journal of pediatrics” This study reported that oral zinc therapy improved hair and skin abnormalities in patients with dry brittle hair, alopecia, and other symptoms, regardless of demonstrated zinc deficiency.
November 2025 in “Frontiers in Veterinary Science” In this study, zinc supplementation at 2.00 g/camel/day improved hair growth in lactating camels but did not affect milk production, while for calves, doses of 0.50–0.75 g/camel/day enhanced growth and hair development.
March 2022 in “Annals of Bariatric Surgery” This study found that protein supplements combined with micronutrients reduced hair loss more effectively after sleeve gastrectomy in women, compared to routine multivitamins alone.
May 2025 in “International Journal of Trichology” In this study, Pilopeptan® Intensive, a nutritional supplement containing hydrolyzed collagen, Group B vitamins, and zinc, was found to significantly improve hair parameters in telogen effluvium patients, with sustained benefits observed posttreatment, although mild side effects were reported by some participants.