This shelf is for redness-prone and easily reactive skin: the kind that flushes with a change in temperature, stings on the second day of a new product, and looks worse after a hot shower or a cold walk to the streetcar. Our approach is subtractive. We take products out of a routine before we add anything, and we introduce one new thing at a time.

RUDDI 10% Azelaic Acid Redness Calming Cream and RUDDI 5% Vita C + Ceramides are the two formulas built for this skin specifically, and they calm the look of redness without the sting of a conventional vitamin C. Medipair Calming Booster and iS Clinical Hydra Cool Serum are the gentler hydrating layers. Osmosis Calm Retinal Serum is the only retinal we suggest here, twice a week to begin. Patch test at the jaw for three nights.