The active ingredient concentrate HYALURONIC SERUM was developed especially for the beauty needs of darker skin types V and VI. Pure hyaluronic acid and the complexion refiner Lumicol make the skin appear smoother and the skin tone more even. Long and short chain hyaluronic acid offers an intensive moisturizing treatment with an immediate freshness effect and makes small wrinkles visibly and noticeably disappear. The series active ingredient Purslane used by Dr. Sturm activates the skin's own antioxidant system and protects the sensitive cell membranes from the attack of free radicals. In combination with the complexion-improving active ingredient Lumicol, the skin gains extra radiance and appears more refined and radiant. The serum's special care power is best developed in a treatment course over 1 to 3 weeks.