24 Medical-Grade Skin-Care Finds From Dermstore, Including Major Deals

Medik8 Crystal Retinal 3 Serum ($65)

If you want the anti-aging and skin-smoothing effects of a retinol but without the irritation and redness, try the gentle Medik8 Crystal Retinal 3 Serum. It's made with retinal, which is supposed to be more gentle than a traditional retinol. The serum is hydrating with a thicker serum-cream consistency and works to help improve the appearance of fine lines and texture over time. It's best to use this at night followed by a hydrating moisturizer.