Hyalogic Episilk Dark Circle Lightening Face Serum With Hyaluronic Acid is a combination of Hyaluronic Acid, Eyeseryl® and Regu®Age designed to hydrate the skin and lessen the appearance of dark circles. Soothe, nourish and rejuvenate your skin while helping to maintain the natural-looking skin tone and color under the eyes. Dark Circle Lightening Serum (DCL) hydrates your skin while helping to brighten and promote the appearance of your natural skin color under the eyes. Contains Regu®Age and Eyeseryl®, as well as Hyaluronic Acid. Hyaluronic Acid (HA) exists naturally in living organisms. In the human body, it is found in greater concentrations in the synovial fluid of joints for proper lubrication, the vitreous humor (fluid) of the eye and, most abundantly, in the skin. As we age, the body produces less and less Hyaluronic Acid. This has an effect on normal, smooth, comfortable joint movement and normal softness and smooth skin appearance. Hyaluronic Acid is a polymer and it can come in varying molecular weights. Research has indicated that higher molecular weight HA polymers can offer more benefits to the body. Hyaluronic acid is safe and beneficial to use everyday for maintaining skin hydration. It moisturizes your skin and supports a youthful glow. This intensely hydrating serum helps to support skin moisture and hydration to maintain a healthy skin appearance. Age can cause the skin to lose natural elasticity. Eyeseryl® helps enhance the appearance of skin so it looks firm and smooth. Regu®-Age is an ingredient mix consisting of specially purified soy and rice peptides and yeast protein. This unique complex promotes a healthy-looking skin tone and a firmer, elastic appearance under the eyes.