Elevate your skin care routine with Sunday Riley's A+ High-Dose Retinoid Serum. This highly concentrated, retinol-infused serum delivers a 6.5% solution to the skin and is a combination of 5% retinoid ester blend, 1% liposomal-encapsulated retinol blend and 0.5% blue-algae. This powerful formula targets fine lines, wrinkles, dark spots, breakouts, an uneven skin tone and environmentally damaged skin. Key Ingredients: Retinol Ester: helps reduce the appearance of wrinkles and encourages the signs of clearer skin without the drawbacks of retinol CoQ10: helps neutralize harmful free radicals and renews the appearance of aging or UV-exposed skin Hawaiian White Honey, Bisabolol, Cactus Extract & Ginger: calm, soothe and even out complexion Key Benefits: Improves look of congested and UV damaged skin Soothes skin for a calmer, more even-toned complexion Fights signs aging, addresses blemishes and dark spots Gluten, paraben, sulfate, soy and phthalate-free Clinical Studies: After 4 weeks: 90% saw the appearance of improved skin radiance 90% agreed the product was gentler than other facial retinoid serums used in the past After 6 weeks: 96% felt the product was effective in addressing their skin concerns 92% felt the product was gentle and non-irritating 86% saw a reduction in the appearance of sun-damaged skin 84% saw a reduction in the appearance of dark spots 82% reported that their skin tone looked more even 80% felt that their lines looked smoother *Results based on an independent blinded study of 102 women.