Hydrators
Glycerin is the boring humectant that actually works in your climate
TL;DR: Glycerin has more published hydration data than any other humectant in skincare, and it costs about a dollar a kilogram in…
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TL;DR: Glycerin has more published hydration data than any other humectant in skincare, and it costs about a dollar a kilogram in…
TL;DR: Differin gel was prescription-only for twenty years. In 2016 the FDA moved adapalene 0.1 percent gel to over-the-counter status with almost…