AMP Human PR Lotion is the product that started it all. It gained a cult like following throughout the endurance sports industry and became a go-to product for pros and amateurs alike. The reason it became so popular - it really works. PR Lotion is applied to your muscles before (and potentially after) workouts. It delivers sodium bicarbonate directly through your skin, helping to buffer lactic acid, which in turn let's you push harder for longer. So if sodium bicarb is so helpful for buffering lactic acid, why don't people consume it orally? The short answer is that pros have been trying this strategy for years and it creates some intense GI issues. So when AMP Human, the original creators of PR Lotion, figured out how to deliver it topically, it completely changed the game.