The Best Lubricants for Vaginal Dryness Petroleum jelly using as lubricant in sex and smooth and warm it Learn from my experience! Say goodbye to Vaseline and spit as lubes they can lead to infections like BV and dryness. Opt for a simple water based lubricant for a smooth and safe experience. Vaginal Lubrication: Vaginal Dryness, Vaginal Health, and More Olor While Vaseline, lotions and baby oil are very common moisturizers found in most homes, they should be avoided as lubricants during sex. They contain chemicals that can irritate the genitals.