Long-acting super-moist moisturizing human body lubricant and preparation method thereof

The invention provides a long-acting super-moist moisturizing human body lubricant and a preparation method thereof. The lubricant is prepared from succinimide modified sodium hyaluronate, a thickening agent, polyhydric alcohol, a humectant, a preservative and purified water. Wherein the content of the succinimide modified sodium hyaluronate is 0.01%-1%, the content of the thickening agent is 0.1%-2%, the content of the polyhydric alcohol is 1%-30%, the content of the humectant is 0.05%-10%, the content of the preservative is 0.1%-1%, and the balance is purified water. According to the invention, succinimide is grafted to carboxyl of sodium hyaluronate to form succinimide hyaluronate, the succinimide hyaluronate can be easily combined with amido on the surface of skin mucosa to form a covalent bond under an acidic condition, and sodium hyaluronate is fixed on the mucosa and is not easy to elute, so that the long-acting super-moist moisturizing effect is achieved. 本发明提供了一种长效超润保湿人体润滑剂及其制备方法，该润滑剂由琥珀酰亚胺改性的透明质酸钠、增