Synergising innovative scientific research & high-quality active & botanical ingredients, the Zelens Z-Melatonin Overnight Serum delivers powerful anti-ageing & regenerating properties. Fortified with low-molecular weight Hyaluronic Acid, antioxidant Vitamin E & Melatonin, which plays an important role in the skin's repair process, the silky formula absorbs quickly & works around the clock to reinforce the protective barrier & target visible signs of damage caused by stress & environmental aggressors. The restorative night serum delivers optimum levels of moisture, whilst creating an instant 'second skin' & lifting effect to help minimise the appearance of fine lines & wrinkles. Suitable for all skin types, you can wake up to a smoother, younger complexion that looks radiant & refined. No greasy or sticky residue. Oil free. Dermatologist tested.