Li H, He H, Liu C, Akanji T, et al. Dietary polyphenol oleuropein and its metabolite hydroxytyrosol are moderate skin
permeable elastase and collagenase inhibitors with synergistic cellular
antioxidant effects in human skin fibroblasts. Int J Food Sci Nutr 2021 Oct 31:1-11. doi: 10.1080/09637486.2021.1996542.
PMID: 34719319