Retinol's forced turnover on already-compromised skin often causes more problems than it solves, especially at over-the-counter concentrations where efficacy is lower but irritation persists
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Proc Natl Acad Sci US A 101:33813386
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The latter is a major IOC sponsor "committed to helping the IOC transform the Olympic Games for the digital era." Asked by AP about this connection, an IOC spokesperson said Alibaba "confirmed to us that it consistently monitors its marketplaces and that it does not have prohibited substances for sale from the WADA 2025 list." Approached by AP, a representative for Alibaba.com asked for links to "problematic" drugs sold by its marketplace and, after the AP sent two of them, said they had removed those items
On exposure to light, it gradually darkens