Niacinamide B3 

Niacinamide B3 can help tighten pores, fight signs of aging, lighten dark spots, even control acne.

When applied on the skin, niacinamide can increase natural lipids while decreasing water loss.

Niacinamide may also be anti-inflammatory, and therefore beneficial for those with acne and rosacea. Even better, it fights signs of aging, can lighten the appearance of melasma and dark spots and works as an effective anti-aging ingredient.

One important thing to note: Niacinamide shouldn't be used simultaneously with skincare products that contain vitamin C. Niacinamide turns into niacin when mixed with vitamin C.

Although not harmful, niacin is a substance that can cause short-term effects such as skin redness and tingling in people with sensitive skin. As long as you apply the two formulas at different times, though (such as vitamin C serum in the morning and niacinamide serum at night), you don't need to worry