Inside this champagne vial is just one single ingredient. "This is Suprême C and it's 100% vitamin C!" says Gucci, unveiling a new first-of-its-kind serum to the Westman Atelier skincare wardrobe.

It was several years ago now that she was introduced to 100% THD Ascorbate—a potent-yet-gentle vitamin C derivative that’s ultra stable and supremely effective. Crafted in Japan through a meticulous multi-step process, Suprême C penetrates three times more efficiently into the skin's surface than traditional vitamin C. What this means is you'll notice boosted brightness and a faded appearance of dark spots or hyperpigmentation in just two weeks. Plus, with the serum's unique gel-oil texture, skin feels instantly hydrated, springy, and supple with each drop.

 Suprême C Vitamin C Concentrate

"This serum’s lipophilic structure allows the THD Ascorbate to really penetrate the skin’s surface layer, where your own enzymes then convert it to pure vitamin C. That means there’s no need for the acidic additives or stabilizers found in many C serums, so it works on even the most sensitive skin," notes Gucci, who adds that after trying a sample of the ingredient, she knew she had to harness it in its most undiluted form. "When you find something that really works, that’s so potent and pure, it’s transformative,” she says, adding that she has even stretched out laser treatments at the dermatologist to address her most stubborn UV-induced pigmentation since she began using it. “Everything starts with the quality of the skin, so investing in your skincare is always worth it."

To apply the vitamin C concentrate, Gucci recommends using 1-2 pumps (a little goes a long way!) on the face and patting any excess onto the neck onto the back of hands. She uses it in the morning onto cleansed skin as a luxurious prep for makeup, and again at night as a nourishing overnight treatment. 

Her pro tip? Layer Suprême C on after Skin Activator serum for what she calls an otherworldly combination. "My skin feels so incredibly balanced and satiated—like everything is bouncing back to life!" Watch her full how-to tutorial then shop Suprême C Vitamin C Concentrate now on Westman-Atelier.com.