How Do You Dilute Retinol? The Retinol Sandwich Explained
How do you dilute retinol? Use it less often, or rinse it off after 20 to 30 minutes. A doctor explains why these are simpler than mixing it into moisturizer.
retinol
Is COSRX Retinol 0.1 Good for Sensitive Skin?
Is COSRX Retinol 0.1 good for sensitive skin? At 0.1%, it has the lowest stated dose of the Korean retinols I checked. A doctor explains how to start.