A little bit of a background first- I am 23 years old, a medical student, with very TIRED, acne-prone, and dull skin. I have struggled with acne throughout my entire adolescent and adult life. I have used many products all over the market. I have had new fine lines, wrinkles, HEAVY bags, and dark circles. I started doing research on skin care and decided to completely revamp my beauty routine. If you care about your skin, you should not hesitate in purchasing this serum. To be very fair with you, I need to explain my daily routine--and ALL the products I use. My skin is still not perfect. I do have a few blemishes that will pop up, but as for my skin overall... it has helped tremendously.