The Surfer s Sunscreen Headhunter® - Heavy Water Technology. Paraben Free. Green Tea. Aloe. Zinc Oxide. Vitamins A & E. Not Tested on Animals Rash Guard® Gel designed to protect and help prevent skin irritation due to: Skin on skin irritation, trunk rash, wetsuit rash, or running/hiking. Our rash guard formula is a waterless gel, with a natural anti-irritant barrier guard system in a hypoallergenic base. Our formula includes: Aloe vera, green tea, zinc oxide, and vitamins A & E.