This supercharged gel-oil vitamin C serum from top makeup artist Gucci Westman helps even skin tone, brighten, and hydrate, leaving skin supple, soft, and radiant. It’s made with a single ingredient, 100% THD ascorbate, a gentle but powerful vitamin C derivative sourced in Japan. The silky serum is ultrastable (it won’t oxidize or degrade with exposure to light or air) and potent, and it works for any skin type (it’s noncomedogenic and fragrance-free). The results are fantastic: In a consumer study, 93 percent of participants said their skin looked significantly brighter and saw a visible reduction in the appearance of dark spots and hyperpigmentation after eight weeks of use.* As Westman’s second-ever skin-care treatment (she’s known for making clients look effortlessly dewy and luminous with makeup), it works in the morning on freshly cleansed skin for beautiful skin prep as well as in the evening for a brightening overnight treatment.

Westman’s tip: Layer one or two pumps of Suprême C after applying the Skin Activator serum for the ultimate two-step skin-care ritual. “The combination is otherworldly,” she says. “It brings my skin back to life.”

*Based on a consumer perception study of thirty participants after eight weeks of daily use.

• 20 mL