"started about a month ago. i have had mild acne for years. this product works amazingly. i only apply before i go to sleep. i found twice in a day was to much, and made my face red / sensitive. when that happens i give it a day or two to heal and flake. let me tell you after it flakes and heals your skin looks great. i continue  to apply before bed. this routine has cleared my acne. one of the only products i have found to actually work. here&#039;s a tip. make sure to rub into your skin thoroughly."