You're going a long way - don't let your skin stop you going the distance. Stop skin problems in training or races, such as blisters, chafing, or pruning, before they start.
Rubs, chafes and blisters slow you down. GurneyGoo lets you go your pace, without any worries or distractions from your skin. Race winners use GurneyGoo.
Difficult challenges are what we do. They may be hard on your muscles and willpower - but they don't need to be hard on your skin! Enjoy running, especially ultra marathon distances.