Hyaluronic Acid Serum is a skincare product that contains ingredients such as vegetable glycerin, sodium hyaluronic acid, phenoxyethanol, and hydrolyzed marine collagen. The main function of this serum is to attract and hold moisture in the skin, which can help increase hydration and enhance the skin’s barrier. Sodium hyaluronic acid, which is a key ingredient in this serum, is a naturally occurring substance in the body that helps to keep the skin hydrated and plump. It is able to hold up to 1000 times its weight in water, making it an effective ingredient for improving skin hydration levels. Vegetable glycerin is a humectant, which means it helps to draw moisture to the skin’s surface. This can help to increase hydration levels and leave the skin feeling soft and supple.