Achieve visibly glowing skin with the Peter Thomas Roth Potent-C Power Serum, a richly nourishing serum that targets the visible signs of ageing while promoting a brighter finish. The serum helps to improve the look of texture, pigmentation and loss of elasticity. Powered by THD Ascorbate (an ultra-stable active 50 times more powerful than traditional vitamin C), 20% vitamin C and two other potent antioxidants (3% vitamin E and 2% ferulic acid), the moisturising serum softens the appearance of fine lines with a visible firming effect.