Peter Thomas Roth Potent-C Power Serum 1 oz New no Box (FREE SHIPPING)

How to use Apply 1-2 pumps to clean, dry skin. For best results, use twice daily on face, neck and back of hands. For external use only. Ingredient Highlights 20% THD Ascorbate* Ultra-potent, gold standard Vitamin C that helps improve the look of uneven skin tone and texture, firmness and fine lines and wrinkles. 50X more potent than traditional Vitamin C (Ascorbic Acid). 2% Ferulic Acid An antioxidant that works synergistically with Vitamins C and E to enhance their benefits. 3% Vitamin E Provides antioxidant benefits.