SolRx, makers of Radx, has been in the outdoor/active sports sunblock and lip protection business since 1981. Formerly makers of the Ironman Triathlon lip protectant and globally licensed Nissan Xterra brand lip protectant, we have taken aloe, vitamins A & E, and moisturizers to create a product that will provide moisture and relief for cancer patients experiencing dry lip syndrome from a head & neck radiation series. We've added SPF #30, so that as you go about your outdoor life, during your series, you have appropriate protection, and we've kept pricing low.