Peter Thomas Roth Un-Wrinkle Fast-Acting Serum is an ultra nourishing youth boosting serum. This amazing favorite from the Peter Thomas Roth Line, helps to create more youthful skin week after week. Reduces the appearance of fine lines and deep set wrinkles. Leaves skin smooth an healthy. Boosts radiance. How to use: Apply serum onto clean skin and follow-up with Peter Thomas Roth Un-Wrinkle Creme. Smooth, velvety texture for comfortable wear. Contains a patented molecule Pro-Xylane developed from Lancôme Research Lab. Ultimately re-plumps, re-shapes & re-defines lips. Enriched with Moisture Locker Complex to keep lips hydrated up to eight hours. Provides extra protection from the damage of UV rays.