Safe Lubricants for Sex (Vaginal & Anal) Tested for pH & Osmolality What is lube? Personal lubricant is used during sexual activity to decrease friction but it comes in several formulations. The primary benefits of using lube include: It improves condom barrier safety by preventing Amazon.com: Gun Oil Silicone Based Lubricant 8 Ounce Personal Long Lasting Sex Lube Condom & Latex Safe Hypoallergenic Unscented No Residue Non Sticky Intimate Lubrication Works Underwater Couples, Men and Women : Health & The Best Natural Personal Sex Lubricant Safe Gel CE 100 150 200 250 Ml Did you know that as well as making sex feel great lube (or lubricant) makes sex safer? It reduces the risk of damage to the vagina or anus, and makes condoms work Vaseline as a sexual lubricant: Is it safe to use?