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Immortal High Stim (Berserker) by I Am Immortal delivers 600mg+ total caffeine from three sources (Anhydrous, ZumXR, Infinergy), 10g L-Citrulline, 10g L-Tyrosine, and 6g Beta-Alanine per scoop. Built for experienced pre-workout users who want maximum energy, laser focus, and skin-splitting pumps. 20 servings per tub.
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🇺🇸 Ship from USA · On Agora since 2025
$59.95