Gezeiten Stimulation & Rejuvenation Serum revitalizes skin while you sleep. The intensive multi-repair night serum bolsters the skin's overnight renewal at the cellular level, boosting cell vitality. Time-released potent actives rebalance the microbiome, preventing unwanted bacterial growth, and stimulating natural collagen, elastin, and hyaluronic acid production. This serum deeply hydrates and prevents overnight water loss, encouraging a plumper, firmer appearance while reducing fine lines, wrinkles, enlarged pores, blemishes, and pigmentation.