I personally have not used them, but it really depends on which lube you're talking about. Some are and others, like one of the popular male lubricants I know of actually has the same exact ingredients as another lubricant, meaning it's the exact same product. Strange, but I notice things like that easily. A couple of the bath products are actually identical, but named differently too. It just depends on which lube you're talking about though. I think reading up on several reviews would be a lot of help here.