Ep 134: Retinol, Retinoid, Retin-A, Retinoic Acid
Fat Mascara
00:00
How to Use Retinol and Vitamin C in the Right Way
"I live in tandem, you know, is it retinol and vitamin C or vitamin C and sunscreen," she says. "Thinnest, the thickest, when in doubt, a serum's going to go on before cream ... I want that on a clean skin first before any other part."
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