Contrary to popular belief, yellow pit stains are not directly caused by your sweat. The staining is actually a side effect of the aluminum contained in most popular deodorants. While it is one of the active ingredients that acts as an antiperspirant, there are many new organic antiperspirants that will not ruin your shirts. While these deodorants come at a slightly higher price tag, they will save you the frustration of fighting with stain removers or buying new gear.
#1 Strength Training for Runners Workout
