OSKIA Super-R Retinoid Sleep Serum Capsules 0.5%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