The hype surrounding niacinamide isn’t, well, all hype. The best niacinamide serums offer a host of benefits for the skin, ranging from improved texture to diminished dark spots and cleared-up acne. Skin Medicinals founder Dhaval Bhanusali, the board-certified dermatologist who helped formulate Rhode skin care, calls niacinamide a “true all-in-one.” He adds that the buzzy ingredient has antioxidant, anti-inflammatory, and antiaging benefits. Plus, it can help the skin tolerate other active ingredients that contribute to a dewier, bouncier complexion overall. Ahead, a look at the best niacinamide serums to consider—plus, all you need to know about incorporating the sought-after ingredient into your skin-care routine.