My review: Azure Naturals's Hyaluronic Acid Serum was the first hyaluronic acid serum I'd tried, and so far, it's my favorite as well. I love the company's commitment to using natural products at professional strength, but still make the formula gentle enough for everyone, even people with sensitive skin.
Hyaluronic acid isn't as common in the beauty market as Vitamin C is (yet!) so I'll give you a little intro on it first. Hyaluronic acid, in pure form, is commonly used as acne treatment, but in this serum, it also targets anti-aging. The acid, which sounds scary, but is still gentle enough for your face, holds a lot of moisture, so it's great under lotions or facial moisturizers. Basically, it makes your moisturizer penetrate your skin more deeply.
I use it on top of my vitamin c serum (after cleansing and toning) and let it dry a bit. It does feel slightly tacky and sticky, but it's supposed to feel that way. After moisturizing, you can't feel it at all, and I can definitely tell my moisturizer gets absorbed into my face well.
This product makes my skin sooo smooth and hasn't done wonders on my acne, but it hasn't made me totally break out either. So if you have sensitive or acne prone skin, don't be afraid to give this a try! I love how Azure Naturals makes their products AFFORDABLE too. This hyaluronic acid serum and their Vitamin C serums are actually not as expensive as others I've seen on the market, which just shows their dedication to making beauty products accessible to everyone!