Review title is Did not work and No results after prolonged regular usage [SEP] Useless. Have been using for more than 6 weeks now and have noticed no difference whatsoever. I read on online articles that retinol does help with aging skin issues. May be this product is of inferior quality or doesn't have enough active ingredient. I'll look for something that's professional strength to see faster results. It's a small bottle. Might last you a month of regular usage (2 times a day).