KORRES Quercetin and Oak Anti-Ageing, Anti-Wrinkle Day Cream - Normal to Dry Skin SPF12 (50ml). The KORRES Research & Development Lab in cooperation with the National Hellenic Research Foundation has studied anti-ageing at cellular level through the function of proteasome, an essential shield mechanism of cell proteins like collagen and elastin. Highly-effective flavonoid Quercetin activates proteasome to prolong skin cell lifespan and act as a restorer on all ageing signs. Dermatologically Tested Mineral Oil Free Silicone Free Propylene Glycol Free Ethanolamine Free Enriched with Active Plant Extracts Directions for use: After the daily cleansing, apply to the face and neck, avoiding the eye area.