1. Peter Thomas Roth Camu Camu Power CX30 Vitamin C Brightening Serum : Camu Camu Brightening Serum helps to improve collagen production, brighten, smooth, firm, revitalize and improve the appearance of uneven skin tone, fine lines and wrinkles. The Amazonian Camu Camu berry has 30 times the Vitamin C of an orange. This highly concentrated Vitamin C has superior absorption properties due to its low molecular weight allowing it to better penetrate the skin. Powerful antioxidant Camu Camu with Vitamins A, D and E also helps revitalize the look of skin while helping to fight free radical attack.