” So that’s another thing you likely want to steer clear from if you’re having vaginal sex. “Glycerin, which is a byproduct from sugar, can often serve as a breeding ground for yeast and bacteria. That’s why you want to steer clear from having vaginal or anal sex with lubes that contain alcohol. “Alcohols-ingredients ending in ‘-ol’ are often alcohol-based-can feel ‘cool’ during sexual activity or masturbation, but they can cause drying out of mucosal surfaces,” he says. Some personal lubricants contain ingredients that may be 'questionable,' explains Michael Ingber, MD, a urologist and urogynecologist at Garden State Urology.
No matter what kind of sex you're having-solo or with a partner vaginal or anal-lube will make it oh so much better.