2 citations,
June 2023 in “Journal of the American Academy of Dermatology” Hair, skin, and nails supplement use nearly doubled from 2011 to 2020, with higher usage among young adults, females, and certain ethnic groups.
7 citations,
October 2020 in “Dermatology practical & conceptual” Some skin, hair, and nail supplements can be toxic, interact with medications, affect lab tests, and may increase cancer risk.
May 2021 in “Research journal of topical and cosmetic sciences” TrichovitalsTM improved skin, hair, and nail health in adults after 12 weeks.
March 2014 in “CRC Press eBooks” Some nutrients and antioxidants may improve skin and hair health, but more research is needed to confirm these benefits.
February 2023 in “Aesthetic Cosmetology and Medicine” Medicinal plants in nutricosmetics contain compounds that can improve skin and hair health.