Oskia Super-R Retinoid Sleep Serum Capsules 0.5% contain a powerful evening retinoid face serum treatment featuring a blend of 0.5% Retinoid (HPR), Vitamin C, E, and Pro-Vitamin D3. This supercharged formula, with advanced cellular nutrients, botanical actives, and key antioxidants, promotes a firm, plump, youthful, clear, and healthy-looking complexion. Ideal for all skin types, especially for those over 30 or dealing with skin damage or acne. The retinol capsules are made from biodegradable seaweed.