Peter Thomas Roth Potent-C Vitamin C Power Eye Cream When your tired-looking eyes need a boost, this Peter Thomas Roth Potent-C Vitamin C Power Eye Cream ($65) comes to the rescue with a 10-percent concentration of superstable THD ascorbate, 50 times more powerful than traditional vitamin C. There's also ferulic acid, which helps ingredients like that vitamin C work even better at brightening and depuffing the undereye area. Image Source: sephora.com Peter Thomas Roth Potent-C Vitamin C Power Eye Cream $65 from sephora.com Buy Now