The most potent niacinamide serum currently on the market with 21% niacinamide, XCell B is a powerful addition to Synergie Skin’s range of scientifically sourced, clinically effective products. This new potent niacinamide serum is the next step up from the cult-favorite Vitamin B serum (13% niacinamide), and ideal for those who feel their skin is ready to take on a stronger dose of niacinamide.

This will result in an improvement to barrier function, skin immunity, tone and texture, hydration levels, and collagen production for fine lines and firmness.


212-243-1431  synergieskin.com/us