Good Head gel is great for improving oral sex for both the giver and receiver. It can also be used for massages. We like to use it for blowjobs and handjobs! It's the best for people who don't love the taste of oral sex, whether male or female. It works on everyone, and barring allergies or texture issues, I'm sure that anyone can use it. The contents sound exactly like what you would find on the back of most candies or gums, but beware if you have allergies to any of the following: DI water, glycerin, cellulose gum, natural and artificial flavors, vaccinium augustifolium (bluberry) fruit extract, fragaria chiloensis (strawberry) fruit extract, rubus idaeus (raspberry) fruit extract, butylene glycol, ethanol, diazolidinyl urea, sodium benzoate, potassium sorbate, sodium saccharine, citric acid, red #40. Glycerin would be the main allergy concern with this one. As you can see, it is water based. I prefer water base to silicone because it absorbs better and is easier to work around in my mouth.