Fertility Lubricant, 2.5 fl oz (75 ml) * Stop using saliva as lube!* Let me give you 3 reasons that spit is NOT a good alternative to lube, I get it saliva is always available and is free of cost, and doesnt really interfere with the Lubricants Which Can Negatively Effect Sperm Male Infertility Guide Can I use saliva as lube? 5 quick facts on saliva as lube Using spit as lube? Heres why you *shouldnt*: It dries up fastterrible lubrication. Spreads infections (yep, even cold sores). Enzymes in saliva can mess with your vaginal microbiome. So