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How Retinoids Actually Work: Retinol, Retinal, Tretinoin—and Why HPR Is Next Generation Part 2
You’ve heard of retinol and tretinoin—but what about HPR (Hydroxypinacolone Retinoate)? In this Short, I explain why HPR is considered a next-generation retinoid, how laboratory studies suggest it interacts with retinoid receptors differently from retinol, and why it’s become such an exciting ingredient in modern skincare formulations ...
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