Essential Supplements for the Rest and Recovery Stage.* Rest and recovery are vital components of any worthy workout routine – overall impacting potential fitness gains. Stretching at a low intensity after a workout helps remove lactic acid from your muscles, reducing stiffness and soreness. But is stretching alone enough? Protein is absolutely essential post-workout to help muscles recover and rebuild after exertion.* NOW® Sports offers a full line of recovery supplements to make sure you get the most out of training programs. All products are carefully tested for purity and potency.