Although not designed to actively kill sperm, many widely used lubricants are not sperm friendly. Although not spermicides, studies have shown that some lubes may significantly lower the sperm's ability to swim. Many couples who are trying to conceive do turn to lubricants as the increased frequency in intercourse, can cause vaginal dryness in the female partner. If you are in a couple who are trying to conceive, it's vital that you choose a lubricant which will ensure all the sperm are kept healthy and have a fighting chance. Through studies, water-based lubricants appear to have the greatest detrimental effect on sperm motility and vitality - immobilizing sperm after just five minutes and killing a significant percentage of sperm within an hour..rich-text blockquote::after { content: no-close-quote; }