COSRX Hyaluronic Acid Intensive Cream is a brightening face moisturizer that is said to deliver deep hydration all day long. This cream is formulated with key ingredients like Hippophae rhamnoides (sea buckthorn berry) water, panthenol, and sodium hyaluronate. Sea buckthorn berry water is known to improve the skin’s barrier function, as well as provide anti-inflammatory and antioxidant effects. Panthenol is the alcohol form of pantothenic acid, commonly known as vitamin B5, which functions as an effective humectant moisturizer. A humectant is a hygroscopic substance that has a molecular structure with several hydrophilic (water loving) groups. This structure allows panthenol to attract and retain the moisture in the air nearby via absorption, drawing the water vapor into or beneath the surface.
Sodium hyaluronate is the salt form of hyaluronic acid that has been shown to have better skin penetrating capabilities than hyaluronic acid alone. Similar to panthenol, sodium hyaluronate functions as a humectant by drawing moisture into the skin. Lastly, COSRX Hyaluronic Acid Intensive Cream contains emollients like caprylic/capric triglyceride, sunflower seed oil, and macadamia seed oil to help the skin feel soft and smooth.