Lierac Sébologie Blemish Correction Stop Spots Concentrate 15ml is a two-phases textured concentrate that targets the spots and residual marks. Its formula works thanks to several active ingredients inspired by the resurfacing technique: - zinc gluconate which offers an action on the shine and an action on the dilated pores. - salicylic acid which offers an action on the spots and residual marks. - the azelaic acid grafted which offers an action on the spots.