Reduce the signs of ageing with The Ordinary Retinol Serum 0.5% in Squalane. The product is a 0.5% concentration of pure Retinol & is designed to treat fine lines, photodamage & general ageing of the skin. Retinol is a clinically-proven anti-ageing ingredient, exfoliating the skin to leave it glowing. It is common for Retinol to have an irritating effect on the skin at the start of treatment, causing redness & peeling around the eyes & mouth. If you have not used high strength retinol formulas before, begin with a lower strength Retinol product. This product does not contain any water, alcohol, plant oils or silicones in order to keep the Retinol as pure, uncompromised & effective as possible. Products from The Ordinary deliver clinical technology in simple & effective formulas crafted by biochemistry & chemistry specialists. every single product focuses on ingredients that have been proven to work, taking away some of the smoke & mirrors often associated with skincare. To use this product, apply a small amount to the face in the evening, using after water-based serums & before heavier moisturisers & serums. Avoid unprotected UV exposure when using retinol products.