Use a water-based lubricant made for sexual use
Check the ingredient list for glycerin, parabens, fragrances, and oils if you have sensitivities
If you want a simple DIY option, mix sterile water with a small amount of aloe vera gel that is pure and unscented
Use a clean container and clean utensils
Store the mixture in the refrigerator
Discard it after a short time if it changes smell, color, or texture
Avoid homemade lubricants with oils if using latex condoms
Avoid using soap, lotion, petroleum jelly, butter, or cooking oils
Test a small amount on your skin first
Stop using it if irritation occurs