Learn what to look for when shopping for the best hyaluronic acid moisturizer.

Scan the ingredient list on the back of pretty much any skin moisturizing product and you’ll find hyaluronic acid (or rather, its pseudonym: sodium hyaluronate). That’s because this gel-like substance, which the body makes naturally to keep areas like eye sockets and joints lubricated, is a superstar hydrator. When applied topically in creams and serums, it attracts moisture to the skin, and traps it in there (each hyaluronic acid molecule can hold 1,000 times its own weight in water), keeping skin soft, supple, and young looking, and making it a key ingredient in the best hyaluronic acid moisturizer out there. Problem is, most hyaluronic acid-spiked skincare products only contain one size of hyaluronic acid molecule, and skin hydration is not a one-size-fits-all concept. The best hyaluronic acid moisturizer? One that contains three different sizes of hyaluronic acid molecules, coupled with additional ingredients proven by science to adjust to climate-based hydration fluctuations. Pour Moi is the only skincare brand that contains this unique combination. Here, two reasons Pour Moi makes the best hyaluronic acid moisturizer!

More Than One Size of Hyaluronic Acid Molecule Means More Hydration

Large hyaluronic acid molecules snatch water from the atmosphere, while small and medium ones steal H2O from the water you drink and from deep within the skin, a layer called the dermis. (The dermis absorbs some water from drinks and food we consume.) Most skin moisturizers only pack the big molecules, which backfires in dry climates. When there’s less than 50 percent moisture in the atmosphere, the large molecules get frustrated and start trying to grab water from the dermis. Unlike small and medium molecules, which are svelte enough to deep dive into the epidermis (the top layer of skin) to get to the dermis, large molecules enter with more of cannonball technique, causing cracks in the skin barrier as they enter it. These cracks rob the skin of its natural moisturizing agents like collagen, leaving skin dry and damaged. Pour Moi products contain all three sizes of hyaluronic acid, which ensure that skin stays hydrated in every type of weather. The three molecule weights work together in unison to moisturize in Temperate, Polar, and Tropical climates—and in dry, Desert environments, small and medium size molecules block the large ones from entering the epidermis and wreaking havoc.

Premium Ingredients Increase Skin Nourishment

Hyaluronic acid is especially potent when it teams up with other powerful moisturizing agents, particularly 100% natural white truffle oil from France. (This combo, which is only found in Pour Moi skincare products, is called HyalurTruf+.) In addition to keeping skin hydrated in every climate, HyalurTruf+ doubles as a skincare Uber—driving antioxidants, peptides, and other essential ingredients deep within the skin’s surface to help reverse the signs of aging. Pour Moi also adds in emollients like glycerin, coconut oil, and squalane oil to prevent water from evaporating from the skin, a process referred to as Transepidermal Water Loss (TEWL). These emollients create a film over the skin to keep the water that the hyaluronic acid molecules worked so hard to capture from escaping back out into the atmosphere. So while lots of skincare products lining store shelves contain hyaluronic acid, only Pour Moi contains the right sizes and amounts of these molecules (and pairs them with other rare moisturizing ingredients) to keep your skin healthy and hydrated.