Download free infographics showing which skincare actives work together—and which to keep apart. Retinol + Vitamin C? Niacinamide + acids? This chart settles the debate.
Skincare actives work at different pH levels and affect your skin in different ways. Some combinations boost each other's effectiveness—like retinol and niacinamide. Others can destabilize formulas, irritate skin, or cancel each other out—like retinol and most acids used together.
The golden rules: one new active at a time, and when in doubt, use at different times of day. These cheat sheets give you a quick reference for what plays nice and what doesn't.
Save the ones you need. Each covers a different mixing scenario.
Use the layering guide, tools, and more cheat sheets to avoid irritation and wasted products.
These charts show general rules. Want a routine where every product is selected to work with the others—no conflicts, no guessing? Try a free skin scan.
