Discussions tagged with 'lactic-acid' BathroomChemist Buffer concentration in serums BathroomChemist replied 1 year, 2 months ago 3 Members · 4 Replies Advanced Questions Abdullah 30% lactic acid @ph 2 solution Abdullah replied 1 year, 4 months ago 3 Members · 14 Replies Skin Viewing 1 - 2 of 2 discussions