Silk is glycerin and paraben free, and is perfect for couples or for solo use. Naturals Silk is all that a water based personal lubricant should be, with the added longevity of a silicone lubricant. All Sliquid products are formulated by sensitive women, for sensible women. Silk is easy to clean up and has a luxurious creamy texture. It will leave your skin feeling so silky soft!