Redness

Diffuse redness almost always signals a weakened skin barrier: the skin no longer defends itself, and the slightest misstep — cold, an over-active product, a scrub — shows immediately.

The star active on this subject is houttuynia cordata, which Korean brands call heartleaf. Anua has made it its signature, with toners dosed up to 77 %. Centella and panthenol complete the work.

What to stop in parallel: grainy scrubs, scalding water, foaming cleansers that leave the skin tight.