Most People Quit Retinol Too Early

How to actually start retinol: pea-sized amount, two nights a week, on clean dry skin, for the whole first month. Then three nights, then every other night, then nightly only as your skin tolerates it. Light redness and peeling early is normal, but rawness or burning means you went too fast. Don't layer with vitamin C or acids the same night. Moisturize after and wear SPF every morning. Most people quit during the purging phase, which is exactly when it's starting to work.