Lubricant that is helpful for sperm Mayo Clinic Health System When trying to conceive, choosing the right lubricant matters. Some common products like oil based lubricants, petroleum jelly, saliva, and regular lubricants may harm sperm and reduce fertility chances. Instead, opt for fertility friendly, Long Distance Touch Bracelets Smart Matching Couple Bracelets With Vibration & Light Let's talk about lubricants and fertility. If you're TTC, the type of lube you use can either support or sabotage your chances of conceiving. Here's what research shows: All impact sperm in Amazon.com: LUBELIFE Fertility Lube Water Based Personal Lubricant for Men, Women & Couples Pregnancy Must Haves, Sperm Friendly, Vegan, Travel Size, 2 Fl Oz : Health & Household Improve Vaginal Lubrication: Tips and Solutions for Women.