The advantage of silicone-based lubricant is that it lasts a long time: It’s not absorbed by your body, so it stays on the surface for of your skin for as long as you’re going at it. (It washes off easily with soap and water.) This one is FDA-approved and dermatologically tested, and it’s made without fragrance, flavors, or preservatives. Silicone-based lube is compatible with latex condoms but not with silicone sex toys.

• 50 mL