We use retinol, not retinoic acid, which most people—even those with sensitive skin—can tolerate. We moderate potential irritation by including salicylic acid, a powerful anti-inflammatory that allows us to use higher concentrations of retinol than you'll find in other retinol products. The retinol is encapsulated so it can exist in a low pH environment without degrading. We use the other vitamins necessary for skin repair, L-ascorbic acid (stabilized) and vitamin E, to take advantage of the synergistic effect to be gained from using all three vitamin powerhouses together. The end solution is Gentle Retinol Night Serum—it delivers results like a Retin-A product but without the irritation.
Who can use it? Any adult interested in addressing problems associated with photoaging, like wrinkles, dryness, and age spots. It also helps clear pores, control breakouts, and lessen post-inflammatory hyperpigmentation. People who should not use it include pregnant women, nursing mothers, or people who still find it too irritating. As with any retinol product, use it only at night, and be sure to wear sunscreen during the day, every day.