The use of acids in the skin care treatment causes the skin's natural pH to drop. Acid Neutralizer neutralizes the acid on the skin as to prepare skin for the absorption of calming skin care products which contain active ingredients. MD SKIN BOOSTER AHA Acid Neutralizer relieves redness and irritation. Panthenol calms and soothes irritated skin and boosts its moisture-binding capacity. Allantoin improves skin cell regeneration and provides calming effect. - restores skin's normal pH-level (approx. 5.5) - soothes and relieves irritated skin and redness - boosts moisture-binding qualities - improves skin cell regeneration - prepares skin for the treatment with skin care products containing active ingredients