As someone who has dealt with a number of skin insecurities — primarily uneven skin tone, redness and patches of keratosis pilaris along my cheeks — I’ve used and experimented with tons of different retinoids in many levels of strength.

Most dermatologists will tell you retinol is arguably one of the most important ingredients you can have in a skin care routine. This may be because, aside from combating the signs of premature aging, retinoids, which are forms of vitamin A that promote cellular turnover, can offer a whole host of skin-improving benefits from evening skin tone to managing acne to reducing the appearance of fine lines.

They will also tell you that retinol has a reputation of causing redness, sensitivity and flaking if not introduced gradually, allowing skin to build up tolerance over time. Because of this, I have found it difficult to find products with higher retinol percentages that will actually visibly address my concerns without destroying my already sensitive skin in the process — until now.

Sunday Riley’s A+ retinol serum initially caught my eye because it was advertised as an advanced strength retinoid that was suitable for both individuals with sensitive skin and experienced users of the ingredient that might be in search of a stronger product. The formulation contains a 6.5% retinoid blend, a relatively high percentage compared with other retinol products on the market.