TH500 is a high‑activity crosslinked hyaluronic acid derivative aqueous solution. It adopts enzymatic hydrolysis and crosslinking technology with uniform molecular weight distribution, combining small‑molecule penetration and large‑molecule moisture retention. It has excellent water solubility and compatibility, mild and low irritation. Ideal for essences, masks, lotions, toners and other formulations, focusing on deep hydration, long‑lasting moisturizing, barrier repair and soothing.