We recommend that you not use silicone-based lubricants with this product, as this could make the silicone surface permanently tacky. If you wish to use a silicone-based lubricant, perform a patch-test first. Water-based lubricants are the safest option. Avoid submerging product or getting water into the battery socket or around the buttons. Never use a massage oil or lotion containing alcohol, petrol or acetone as a lubricant. Avoid leaving product in direct sunlight and never expose to extreme heat. Store product in a dust-free place and keep it away from toys made of other materials. Do not use on any open wound, skin laceration or swollen or inflamed areas. Discontinue use if pain or discomfort develops.