Supercharged with a potent blend of 15 retinol 1% and squalane, this The Ordinary Retinol 1% in Squalane is specifically created for people who've previously built up a tolerance to retinol, the water-free solution delivering incredible anti-ageing benefits. Smoothing the appearance of fine and dynamic lines, boosting collagen and elastin production, and evening skin tone and texture, this powerful serum leaves your complexion bright, firm, and youthful, the addition of squalane enhancing surface-level hydration to ensure your skin stays healthy and radiant while minimising irritation and dryness. The Ordinary Tip: Start with Retinol 0.2% in Squalane and slowly work your way up to Retinol 0.5% in Squalane and Retinol 1% in Squalane. Note: Once opened, this formula should be refrigerated and used within three months. Caution: Retinoids can make your skin more sensitive to UV radiation. Sun protection is particularly important when using retinoids. This product must not be used in conjun