How to Layer Active Ingredients Safely

Kwesi Mensah
Actives are powerful, but combining them carelessly can cause irritation. Introduce one new product at a time and wait a week before adding another.

Use vitamin C in the morning and retinoids at night to avoid potential conflicts. Niacinamide pairs well with almost everything and helps calm the skin.

If you experience redness or peeling, scale back frequency rather than stopping entirely.