Our Bio-Retinol C Booster is an oil-based skin booster designed to improve the appearance of dull and tired skin and deliver the nutrients needed for a radiant look. Vitamin C and Bio-Retinol are combined in this nourishing oil-based booster to strengthen the skin. Our Bio-Retinol C Booster uses four incredible vitamins (A, C, F, and E) incorporated into a gentle base of rosehip oil, allowing this product to penetrate deeper into the skin than typical water-based products. Vitamins C and A support the anti-aging effect, increase collagen production and moisture supply, while improving the radiance and luminosity of the skin. We have also added an extra boost with Vitamin E, rich in antioxidants and healing the skin, and Vitamin F, deeply nourishing and replenishing the skin.