The Ordinary Retinol 1% in Squalane is a high-strength retinol serum formulated for experienced retinol users. This water-free solution combines pure retinol with squalane to target signs of aging while maintaining skin hydration. The formula is highly stable and designed to improve skin texture and reduce the appearance of fine lines and wrinkles. This is a high-concentration retinol product that should be introduced gradually into skincare routines. Apply a few drops in the evening after water-based treatments but before heavier creams. Not recommended for retinol beginners - start with lower concentrations first. Must be used with sunscreen during daytime as retinol increases sun sensitivity. Not suitable during pregnancy or breastfeeding. Store in a cool, dry place and use within 3 months of opening. May cause temporary irritation, redness or peeling while skin adjusts.