Sliquid Naturals Silver is a pharmaceutical grade silicone personal lubricant and is Sliquid's Premium formulation. Silver is super long-lasting and 100% waterproof and is the perfect choice for those who need a lubricant to last. Made from an ultra-concentrated blend of pharmaceutical grade silicones, Sliquid Naturals Silver will last for hours with only a few drops and is easy to clean up with simple soap and water (except from some sheets clothing!). All Sliquid products are formulated by sensitive women, for sensible women. Slight variations in color or consistency may occur due to the key natural ingredient plant cellulose used in this product.