Gentle and safe water based personal lubricant. This is the perfect personal lubricant to use with all types of medical products and procedures. 4 oz. (113g) tube. Because KY Jelly is water based, it has no color or perfume additives and is biologically inert. Another great feature of KY Jelly is that it cleans up easily and will not stain your clothes. It’s applications are almost endless, be it for surgical procedures, sexual activity, or medical diagnostics. KY Jelly has even been used in Hollywood for special effects in Ghostbusters, Alien, and many other films.