Can You Use Vaseline as a Personal Lubricant? Soulitinerary Four things you should never ever use as lubricants during coitus 1. Vaseline Petroleum jelly It traps bacteria, increases risk of infections (especially yeast & BV), and can damage condoms. 2. Saliva ( What Can Be Used As a Personal Lubricant? Vaginal Lubricants: How to Apply, Benefits, Side Effects Can We Use Vaseline as a Lube? Gautam Clinic If you use spit as lubricant, I will judge you.