Sulwhasoo First Care Activating Serum 8ml x 5 Pcs = 40 ml Serum VI Newest Version. Youth Master Technology™ developed by Sulwhasoo as the world’s first anti-aging Skin moisture barrier technology of its kind Sulwhasoo spent 24 years of research into Korean herbal medicine and its anti-aging technology for the skin moisture barrier. When the «skin moisture barrier master key» is activated, the vitality hidden inside your skin awakens and protects the skin moisture barrier inside and out. Stronger and more radiant-looking skin Natural capacity to Deliver stronger and more radiant-looking skin. Using the First Care Activating Serum – Improved skin condition (following day) 97% – Firmer looking skin (following day) 94% * Based on an independent consumer study on 539 Asian women between ages 30 and 40, after 4 weeks (total of 4 weeks HUT) Fresh and soothing signature fragrance and texture A formula technology that helps the serum to absorbs quickly and refreshingly into various skin types. Combined with a soothing fragrance, it boosts sensory satisfaction for all customers. Nutrient-rich resilience synergy serum duo Enjoy more benefits with the Sulwhasoo serum duo. Reinforce the skin moisture barrier with the First Care Activating Serum, and improve its resilience with the Concentrated Ginseng Renewing Serum. Sulwhasoo Heritage and Science Center The Sulwhasoo Heritage and Science Center is Sulwhasoo's research center that represents the beauty of oriental medicine science. From research on herbal ingredients, including ginseng, to the use of big data, the Sulwhasoo Heritage and Science Center studies traditional herbal ingredients and the latest developments in dermatology. How to Use The First Care Activating Serum is the “first step” in your beauty routine, providing an essence that restores balance to your skin. After cleansing, rub both hands to generate heat, then dispense the First Care Activating Serum on both hands (palms).