tightens the skin, relaxes it and improves its elasticity, acts deeply during sleep during the night fights against skin weakening and sagging facial contours has an extraordinarily regenerating effect thanks to active oxygen intensively nourishes the skin and protects it from dehydration has a rich and dense consistency Test results: As part of the efficacy study, 30 subjects participated in the test for the line OXY-TREAT Firmness (210 test subjects in total) who used the cream for 30 days.