Brightening Serum is a powerful formula that safely reduces the appearance of uneven skin tone, while providing significant controlled exfoliation Poly-Vitamin Serum is an intensive, revitalizing formula for all skin types. This formula ensures the delivery of a powerful combination of essential vitamins, bionutrients, and age-defying antioxidants. This combination deeply hydrates, generating significant improvements in the appearance of texture, tone, and overall integrity of the skin.