Personal lubricant is the main way toubricate inside vagina，lubricants and gels are a must-have for people smoothest sex yet. If natural lubrication is not enough, people will use artificial lubricant, lube,gel,jelly, to make sexual activity more comfortable.Not just for dryness, sex lubrication products will help lovers reach new levels of pleasure.So，There is a broad market for lubricants. The water-based lubricant, …