I've been looking for a well formulated retinol for a while. This one has minimal ingredients, does not have essential oils, silicones, alcohols, parabens, EU allergens, etc. Retinol is typically not for sensitive skin but this really worked for me. My skin is clearer, softer, and my pores have already started to look smaller. My skin texture is more even and some of my breakouts have healed faster. I have VERY oily, acne prone, sensitive skin that can be managed by diet but long term effects of suffering acne are still present and this has helped to control/reverse some of that. I also love that this is in an amber glass bottle and not a plastic bottle for long term storage.