The Dark Spot Correcting Serum was developed to combat melanin imbalances and existing dark spots. It contains the intensely moisturizing Rx2 hyaluronic acid complex, which penetrates 15 times deeper into the skin than conventional hyaluronic acid*, as well as a bioactive complex of multi-unifying, biovectorized gallic acid, which is 4 times more effective than pure vitamin C**. The milky gel texture absorbs instantly into the skin and, together with a targeted active ingredient complex based on niacinamide, provides enhanced anti-pigmentation action. Even after the first application, the complexion appears more radiant. Day after day, the skins appearance becomes more even, and dark spots are visibly reduced. Rexaline is a pioneer in the field of cleanical anti-aging skincare, combining American innovation with French sophistication. As a specialist in hyaluronic acid, the brand has focused on hyperhydration since 2008. The formulas are highly effective, uncompromising, and dermatologically tested. *In vitro test on ingredients: Permeability of oligo-HA (8,000 Da) compared to sodium hyaluronate (800,000 Da) after 6 hours. **In vitro antioxidant test with BVF gallic acid, DPPH reduction on isolated ingredients.