Peter Thomas Roth VIZ-1000 Hydrating Serum is an intense nourishing and restorative facial treatment that helps to lock in moisture. Ultra enriched skin serum is full of silk proteins, sea algae, honey and mineral complexes, Peter Thomas Roth VIZ-1000 Hydrating Serum creates a veil of moisture around your skin to maintain it healthy and looking youthful. Skin is left soothed, feeling more comfortable and intensely nourished. How to use: Apply to face and neck twice a day.