iFEiER High Molecular Weight Hyaluronic Acid Powder (1500k~1800kDa), 60g(2.12oz) Cosmetics Grade. It’s very easy to make a Hyaluronic Acid serum. Just add 1g of Hyaluronic Acid Powder to 100ml of water and wait for the solution to turn into a clear serum. 1g of powder can make 100ml (3.5oz) of serum, which saves a lot of money. Cosmetic Grade & Skin-Friendly: 100% pure cosmetic-grade hyaluronic acid powder—non-GMO, preservative-free, and safe for all skin types, including sensitive skin. High Molecular Weight Hyaluronic Acid does not penetrate the skin. Instead, it forms a non-occlusive protective film that helps prevent moisture loss and strengthens the protective barrier on the skin's surface. Trusted Quality, Lab-Tested: Sourced and tested for purity and consistency. Packaged in a resealable pouch for freshness and long shelf life. iFEiER has two both types HA: High Molecular Weight Hyaluronic Acid and Low Molecular Weight Hyaluronic Acid (Not included; sold separately) for your option. Combining high-molecular-weight and low-molecular-weight hyaluronic acid can bring the greatest benefits to the skin. High Molecular Weight Hyaluronic Acid (HMW HA) (1500k~1800kDa): It will not penetrate the skin but form a non-occlusive protective film that prevents moisture loss and strengthens the protective barrier on the skin's surface. Effects: long lasting moisturization, trans-epidermal water loss protection, good suppleness retention.