Vaginal lubricants can be made of simple ingredients, colorless and odorless, with preference given to water-soluble and silicone. Appropriate use of vaginal lubricants during sex between husband and wife can help make sex more harmonious. Water-soluble lubricants are better. The main ingredient of this type of lubricant is water, which is relatively pure and does not contain antibiotics, estrogen and other chemically active ingredients. However, it is best not to use Vaseline lubricant, Vaseline is fat-soluble, if this time and condom together, is likely to cause condom breakage. In addition, do not use vaginal lubricants for a long time, so as not to cause vaginal environment disorders, reduce female sexual sensitivity and so on. And this lubricant should not be used more than once, otherwise it may produce a certain degree of dependence, pay attention to keep the pubic area dry.