I've been using this product for a short period of time and already I have dramatic results! My skin is acne prone and very scarred. After only a couple of uses my blemishes are almost all gone and my PIH has gone down.Be careful to use the product gradually,using too much or too often right at the beginning will irate your skin.I use it every second night on clean, toned skin and massage it in with the tip of my fingers.I wait at least 20 minutes before applying moisturizer not to lessen the effectivement of the bha