Celimax

Celimax makes actives for people whose skin usually refuses them. The Retinal Shot boosters are what most people arrive for — a real retinal, dosed and buffered so that reactive skin can get through the adjustment period rather than giving up in week two.

Dark spot serums and barrier-supporting toners round out the range, and the whole line leans hypoallergenic rather than high-strength.

If retinal has burned you before, this is the gentler way back in. Two nights a week to start, and read Retinol & Retinal before you do.