Silicone-based 

Überlube - silicone based lubricant

Überlube makes sex better for everyone by reducing friction, not sensation. This silicone-based lube is made from simple, body- and condom-friendly ingredients, and is free of parabens, preservatives, petrochemicals, scents, and colors. Überlube’s simple ingredient list makes it widely used by people with sensitivities to other lubricants.