InvisiLube capsule contains medical-grade silicone oil that is 100% safe and could be used before sex! It is made from a patented formula, and the capsule can dissolve in just 5 to 10 minutes. Our InvisiLube Capsule is small, melts quickly within minutes, and could be inserted easily using just your fingers. Its texture is refreshing and silky and will not be dry and sticky for a long time.