- Combats common skin-ageing concerns - Time release mechanism reduces irritation - Contains retinol at 0.3% concentration - Suitable for all skin types (age 20-30)Medik8 Retinol 3TR Retinol has been shown in several clinical trials to combat common skin-ageing concerns such as facial wrinkles, lines, folds and a loss of firmness by stimulating collagen and hyaluronic acid production. Retinol has also been proven to improve skin clarity and texture, promote anti-pigmentation plus demonstrate anti-acne and pore-minimizing effects, all leading to a more youthful skin appearance.Retinol 3 TR Advanced Night Serum has unique time-release technology ensuring the anti-ageing benefits of pure retinol without the irritation and peeling associated with regular retinol products. Contains highly stable, pure, encapsulated all-trans retinol at 0.3% concentration. Retinol 3 TR is an optimized serum containing 0.3% encapsulated all-trans retinol in its purest and most active over-the counter form. R