OSKIA Retinoid Sleep Serum Level 2 - 0.5% is the perfect serum for those who have used retinoids before in their skincare routine. Its imperative to start with a low concentration of retinoid to avoid skin irritations and then build up to the highest level, 0.5%, which is the maximum allowed under EU legislation. Benefits of OSKIA Retinoid Sleep Serum Level 2 - 0.5%: Brightens & firms skin Improves texture of the skin Antioxidant protection This highly effective OSKIA Retinoid Sleep Serum Level 2 - 0.5%, helps to maintain a youthfully firm complexion. The combination of Retinoid, Vitamin C, E and Pro-Vitamin D3 penetrate deep into the skin. It contains Hydroxypinacolone Retinoate, which is a fourth generation of retinoid. This works to turn the skin cells over, revealing anti-ageing benefits through a more youthful complexion. It absorbs into the skin very quickly and it inhibits collagen-destroying enzymes to regain plumpness and youthfulness in the skin. This formulation also contains a supercharged form of Vitamin C, which penetrates to reveal brighter, firmer looking skin which is further enhanced by turmeric. Additional powerful anti-oxidants are present which are Vitamin E as well as Encapsulated Co-Enzyme Q10, proving anti-glycation protection. These ingredients are so gentle that they cause no irritation to the skin but are also highly effective at reducing fine lines, firming, brightening and providing anti-oxidant protection to reveal a clear and youthful complexion. How to use: Apply 1-3 drops on treatment area, 2 or 3 evenings per week after cleansing. Follow with your preferred OSKIA moisturiser or oil. Reduce frequency if sensitivity occurs. Size: 30ml