Amazon Basics Retinol Serum for Face, 1 Fluid Ounce, 1-Pack $13 The Ordinary Retinol 1% in Squalane, High-Strength Retinol Serum for Anti-Aging and Skin Smoothing $9 CeraVe Anti Aging Retinol Serum For Face, Encapsulated Retinol With Hyaluronic Acid, Niacinamide & Ceramides, Smooths Wrinkles & Fine Lines, Gentle Skin Brightening Serum, Fragrance Free, 1 Oz $20 The Ordinary Retinol 0.2% in Squalane,…