Defense from Intimate Earth is the only protection Glide containing both Carrageenan (Sea Kelp) and Guava Bark Anti-Bacterial extract. This is an exciting breakthrough in lubricants. A recent study conducted by researchers from The National Cancer Institute (NCI) found that -- in a test tube -- carrageenan, as an ingredient, inhibits the infectious ability of viruses that cause cervical cancer and genital warts. The NCI findings, as reported in a peer-reviewed journal published by The Public Library of Science, are being studied for its potential impact in combating the spread of sexually transmitted diseases (STDs). Guava Bark - is used in the Amazon as a douche to treat and prevent yeast infections. Benefits: Natural Anti-Bacterial extracts for safer sex, anti-yeast infection lube, sea kelp / carrageenan formula to provide HPV Barrier, Glycerine & Propylene Glycol Free, Light and long lasting, latex condom friendly, aloe for softness.