Vaseline is not a suitable lubricant for any sexual purpose. Three serious problems:
1. Destroys latex on contact
Petroleum jelly degrades latex within seconds of contact. This means:
- Condoms fail — increased risk of breakage, with attendant STI and pregnancy risks.
- Latex gloves and dental dams fail.
- Latex bondage toys degrade.
NHS guidance on condom use explicitly excludes petroleum-based products as lubricants for this reason.
2. Doesn't wash out cleanly
Petroleum jelly is hydrophobic — it doesn't mix with water and resists washing. Inside the body, residues sit on tissue and accumulate; the body cannot clear them effectively. This:
- Disrupts the vaginal microbiome (increased risk of bacterial vaginosis).
- Disrupts the anal microbiome and creates conditions for bacterial accumulation.
- Cannot be effectively cleaned from porous toys; permanent contamination.
3. Body-contact regulation
While Vaseline itself is generally safe on skin (it's sold widely as a skincare product), the body-contact regulatory standard for sexual use is different. Petroleum-based products aren't formulated for the mucosal environment of intimate use.
What to use instead
- Water-based lubricant — universal compatibility; rinses cleanly; safe with every condom type. Sliquid H2O, Pjur Aqua, ID Glide. £8–£15 for a 100ml bottle.
- Silicone-based lubricant — lasts longer; safe with all condoms; not for silicone toys. Pjur Original, Sliquid Silver.
- Hybrid (water + silicone) — middle-ground; works with most things.
For massage (skin-only, not for intercourse): coconut oil, almond oil, jojoba oil are safe skin-contact options — but never on areas where a condom or latex will be present.
See our beginner's guide to lubricant types for the deeper comparison.