I suffer from adult acne, and have acne scars. I used it less than a week, and have shown visible less scars on my face. The only thing that I can’t deal with is the smell. But to me, the scars on the face are less visible to me & are worth doing it for the smell. I rated it a 4 out of 5 because of that reason. If it wasn’t for that, it would be a 5 out of 5!