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.

In the beauty space, conscious consumers still have to do all the work to figure out what's truly clean. At The Beauty Doctrine, we define clean beauty through five strict pillars — Capable, Less is More, Ethical, Accountable, and Natural — so you don't have to guess.