Oral Supplementation of Collagen Peptides Improves Skin Hydration by Increasing the Natural Moisturizing Factor Content in the Stratum Corneum: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial.
Skin Pharmacol Physiol. 2021;34(3):115-127. doi: 10.1159/000513988. Epub 2021 Mar 26.
Skin Pharmacol Physiol. 2021.
PMID: 33774639
Clinical Trial.