The Retinol 1% in Squalane serum by The Ordinary is a lightweight, oil-free formula designed for all skin types, including mature skin. This serum features a 1% concentration of retinol, a form of vitamin A, combined with squalane, a natural oil that helps soothe and hydrate the skin. The formula is non-comedogenic, meaning it will not clog pores, and is fragrance-free. Regular use is intended to improve the appearance of fine lines, wrinkles, dark spots, and uneven skin texture while promoting collagen production and helping to reduce acne. To use, apply a few drops to clean, dry skin at night, starting once a week and gradually increasing frequency based on tolerance. It is essential to use a sunscreen with SPF 30 or higher during the day while incorporating this product into a skincare routine.