Free shaker offer available for one time purchases only.
Kill your workout with Insidious by Murdered Out. It's time to murder the competition with our brand new, high-performance pre-workout supplement, Insidious. Designed to exceed the needs of fitness fiends, gym-goers, and sports-pros everywhere.
Insidious is packed full of powerful ingredients that combine to supercharge your physical performance, again and again. Helping you to stay stronger, react quicker, last for longer, pump harder, and recover better.
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Suggested Use