I purchased this product to save on cost since the bottle contains 4 oz of product which is quite affordable for retinol. Although I was worried that it would be too rich of a moisturizer for my combination acne-prone skin, I got great results. It has helped with my acne (in combination with BHA) and evened out my skin tone and acne discoloration. I use on alternate nights and my somewhat sensitive skin tolerates it quite well.