I bought this serum for my daughter (she is 24) who has sensitive skin, with moderate acne, and hormonal breakouts, and redness. She has been using it now for about 6 weeks and told me that this is the only product she has tried that has actually been healing her skin. She is seeing less redness, less hormonal breakouts and she can feel that there isn't any congestion under her skin and her skin feels smoother. Success!