Tretinoin is the reflex prescription for almost every skin concern — but is it right for your biology? This Functional Beauty analysis breaks down the science of retinoids, barrier disruption, inflammation, and why a gentler liposomal alternative may serve your skin better long-term.

The glass skin trend has driven many to over-exfoliate and over-stimulate their skin. But biology doesn't reward chronic aggression. Learn what dermatology isn't saying — and how to achieve true luminosity through cellular sufficiency, not irritation.

Not all cosmetic alcohols are created equal. Some dry out and damage your skin barrier, while others moisturize and protect. Learn which to avoid and which to embrace.