Lubricant gel is used primarily to reduce friction during sexual activity, but it also plays a role in medical procedures, fertility planning, and even athletic skin protection. Most people reach for it to make sex more comfortable or pleasurable, and roughly 85% of lubricant users describe comfort as the main benefit. But the full range of uses is broader than many people realize.
Sexual Comfort and Pleasure
The most common reason people use lubricant gel is to reduce friction during sex. In surveys of lubricant users across diverse populations, about 69% said they use it to make sex more comfortable, 50% to reduce pain, and 41% to increase pleasure. Beyond those basics, people also report that lubricant helps them feel more aroused, makes it easier to reach orgasm, and simply makes the experience feel better overall.
Lubricant is especially helpful during anal sex, where the body doesn’t produce its own natural lubrication. Users consistently report that it reduces discomfort and helps prevent small tears in delicate tissue. For vaginal sex, it supplements natural moisture, which can vary depending on hydration, stress, hormonal cycles, and arousal levels.
Managing Vaginal Dryness
About 15% of premenopausal women and up to 57% of postmenopausal women experience vaginal dryness. A large U.S. survey of over 3,000 postmenopausal women found that dryness was the most common symptom (55%), followed by pain during sex (44%) and irritation (37%). More than half said these symptoms affected their enjoyment of sex.
Lubricant gels are effective at relieving discomfort and pain during intercourse for women with mild to moderate dryness, particularly those who can’t or choose not to use estrogen therapy. They work by reducing the friction that thin, dry genital tissue is especially vulnerable to. The relief is short-term, lasting through sexual activity rather than providing all-day moisture, which is where vaginal moisturizers (a different product) come in.
Condom Safety
Using lubricant with condoms reduces the risk of breakage, which means better protection against STIs and unintended pregnancy. About 95% of participants in one study said they wanted to use water-based lubricant regularly in part because it reduced condom breakage during sex.
However, the type of lubricant matters enormously here. Oil-based products, including common household items like baby oil and hand lotion, cause rapid damage to latex condoms. Research published in Contraception found that just 60 seconds of exposure to mineral oil caused roughly a 90% decrease in condom strength. Products like Vaseline Intensive Care and Johnson’s Baby Oil showed the same effect. Water-based and silicone-based lubricants are safe to use with latex condoms.
Fertility and Trying to Conceive
If you’re trying to get pregnant, your choice of lubricant matters. Standard lubricants can significantly impair sperm movement. About 40% of women experiencing vaginal dryness reach for a common brand like KY Jelly, which has been shown to have harmful effects on sperm function.
Fertility-friendly lubricants are formulated differently. In lab testing, a fertility-specific product (Pre-Seed) preserved progressive sperm movement at over 85%, while some standard lubricants dropped that number to as low as 31%. The fertility-friendly option had a simpler composition, consisting mostly of purified water and a single thickening agent, and notably did not contain glycerol. Products with extensive ingredient lists, particularly those heavy in vegetable gums and fruit extracts, tended to perform worst for sperm health.
Medical Procedures
Healthcare providers use lubricant gel routinely during physical exams and diagnostic procedures. Gel makes speculum exams, rectal exams, and catheter insertion more comfortable by reducing friction against sensitive tissue. Ultrasound gel, a related product, is applied to the skin or used internally during transvaginal ultrasounds to help transmit sound waves and monitor follicle development during fertility treatments. These medical gels are specifically formulated to be sterile and compatible with the procedures they’re used in.
Three Types of Lubricant Gel
Lubricant gels fall into three main categories, each with distinct strengths.
- Water-based: The most versatile option. These feel natural, clean up easily, are safe with condoms and sex toys, and rarely cause irritation. The tradeoff is that they dry out faster than other types and may need reapplication during prolonged activity.
- Silicone-based: Longer lasting and effective in water (showers, pools, baths). Safe with latex condoms. The downside is they’re harder to wash off, can stain fabrics, and can degrade silicone sex toys over time by breaking down the surface material. If you use silicone toys, do a small spot test first or stick with water-based products.
- Oil-based: The longest lasting option, with added skin-moisturizing properties. Good for external massage. But oil-based lubricants destroy latex condoms within seconds, can trap bacteria and contribute to infections, and are difficult to clean from toys and fabrics.
Ingredients Worth Avoiding
Not all lubricant gels are created equal when it comes to vaginal and rectal health. Glycerin, found in many bestselling products, is a sugar-based compound that can feed yeast and potentially raise the risk of yeast infections with repeated use. Many glycerin-containing lubricants are also hyperosmolar, meaning they pull water out of cells. Over time, this can actually dry out the tissue you’re trying to protect, disrupt natural pH balance, and cause microscopic damage to vaginal or rectal lining.
The vagina maintains a slightly acidic environment, supported by beneficial bacteria, that protects against infections. Lubricants that are pH-balanced for vaginal use are less likely to disrupt this balance. Clinical studies have found that some lubricants with glycerin and similar additives cause burning, stinging, redness, and increased sensitivity during or after sex. If you notice these symptoms, switching to a simpler, glycerin-free formula often resolves the problem.
Skin Protection During Exercise
Anti-chafing products are essentially specialized lubricant gels designed to reduce friction between skin and clothing or between body parts. Chafing happens when skin rubs repeatedly against something until it becomes raw and irritated, and it’s especially common on inner thighs, under breasts, on feet, and along the torso. Runners, cyclists, and anyone active in warm weather are particularly prone to it. Anti-chafe balms and sticks create a slick barrier on the skin’s surface, often combining friction-reducing ingredients with moisturizers like coconut oil or vitamin E to soothe skin while protecting it.