No. 1 silicone lubricant brand (Based on U.S. IRI MULO dollar sales for personal lubricants for the 52 weeks ending 4/18/2021). Waterproof silicone liquid. Waterproof. Silky smooth. Condom compatible (this product is compatible with natural rubber latex condoms. This product is not compatible with polyisoprene and polyurethane condoms). USA doctor recommended brand. Uses: Astroglide X Silicone Personal Lubricant is a personal lubricant for penile, vaginal and/or anal application, intended to moisturize and lubricate, to enhance the ease and comfort of intimate sexual activity and supplement the body's natural lubrication. This product is compatible with natural rubber latex condoms. This product is not compatible with polyisoprene and polyurethane condoms.