Advanced Collagen Serum in OilA uniquely nourishing, intensive collagen serum in oil with a threefold antiaging effect. For dehydrated and dry skin, epecially suitable for demanding and mature skin. How to apply Apply to cleansed face, neck and dcollet. Ideally use after the Day or Night Collagen Serum in the morning and in the evening. Follow with the individual QMS routine. Shake before use. How it works Strengthens the skin's own hydrolipid layer and intensively moisturizes the