Retinol Serum for Face | 2 fl oz | Professional Strength Formula | Free of Parabens & Fragrances | Packaging May Vary

This retinol serum is a professional strength formula that comes in a 2oz bottle. Although the percentage of retinol is not stated, it is the second ingredient after water which gives a good indication that it is mostly retinol. The serum is said to have a low concentration, making it safe to use nightly on the face. However, it also caused a light purging period for some users. After two months of use, some users have noticed an improvement in their skin texture and dark spots. In terms of customer reviews, some users have found the serum to be effective in keeping signs of aging away, while others have not noticed any difference in their skin. Some have experienced breakouts from using this serum. However, many users have found the serum to be moisturizing and great for oily skin. Overall, while the concentration of retinol may be low, the serum has received mostly positive reviews and has been found effective by many users in improving their skin texture and dark spots.