Adding A Step Well

When you do add a treatment, give it a fair trial. Patch test a new active on your inner arm or jaw for a day or two first, so a bad reaction shows up somewhere small, not all over your face.

Introduce actives slowly, two or three nights a week, then build up if your skin stays calm. And remember the reverse move: if your skin is irritated, the fix is often removing a product, not adding one.