The workout pump isn't just for show - it provides a valuable effect to your training. Increased blood flow helps supply the muscles with oxygen and nutrients, while speeding removal of cellular waste products that contribute to muscular fatigue. Temporary swelling of the muscles results in stretching of the muscle fascia, which allows for continued muscle growth through a cascade of anabolic signals. The pump is also a powerful motivating factor, by acting as positive feedback on your workout and rewarding your efforts by making you look your best. Antaeus Labs' NEW Thunderbolt isn't your run-of-the-mill "pump supp" though. We've carefully selected the four ingredients we think will make the biggest difference to your workouts and progress in the gym.
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