An advanced vitamin B3 serum fortified with 21% niacinamide and super antioxidant superoxide dismutase (SOD) to fight free radicals while strengthening barrier function and boosting water-holding skin lipids. As your essential multitasking cosmeceutical, XCell B regulates oil flow, addresses lines and uneven skin tone for luminous, dewy skin.

Synergie Skin's Vitamin B suite includes the following formulations:

• Vitamin B (Niacinamide 13%, moderate potency, no irritation profile). This product is the recommended Vitamin B serum for new users and those with sensitive skin. 

• XCell B (Niacinamide 21%, high potency, low irritation profile).