This serum combines hexylresorcinol and niacinamide that work synergistically to make the appearance of the complexion more radiant and even-toned. There is NO hydroquinone in this product, making this formula a heavy-hitting and safe alternative to harsh chemicals. In addition to brightening molecules, it also contains hyaluronic acid and squalane. These provide moisture and hydration and a light skin- plumping effect that helps to minimize the appearance of fine lines and wrinkles. Apply every evening on affected areas or use it all over your face to brighten your complexion. Best to use when concerned about dark spots, uneven patches or discoloration, signs of aging, and dullness.