Moisturizing cream, preparation method of moisturizing cream and collagenase inhibitor

The invention provides moisturizing cream, a preparation method of the moisturizing cream and a collagenase inhibitor. The moisturizing cream includes the collagenase inhibitor and a permeation enhancer; and based on the total mass of the moisturizing cream, the addition of the collagenase inhibitor is 0.01-10%, and the addition of the permeation enhancer is 0.01-10%. The collagenase inhibitor includes a pomegranate peel extract and a sophora angustifolia root extract; and based on the total mass of the collagenase inhibitor, the addition of the pomegranate peel extract is 51-95%, and the addition of the sophora angustifolia root extract is 5-49%. The moisturizing cream is mild in formula and can effectively improve the elasticity of skins, so that anti-aging effects can be achieved. 本发明提供一种保湿霜及其制备方法以及胶原酶抑制剂。所述保湿霜包括胶原酶抑制剂和促渗透剂；以所述保湿霜的总质量计，所述胶原酶抑制剂的加入量为0.01-10％；所述促渗透剂的加入量为0.01-10％；所述胶原酶抑制剂包括红石榴皮提取物和苦参根提取物，以所述胶原酶抑制剂的总质量计，所述红石榴皮提取物的加入量为51-95％，所述苦参根提取物的加入量为5-49％。本发明的保湿霜的配方温和，能够有效改善皮肤弹性，从而起到抗衰的作用。