Unlock a bold, refreshing burst with every sip of SHELLBACK™, the zero-sugar, zero-calorie fruit punch energy drink designed to fuel your missions—without compromise. This fizzy powerhouse delivers a fruit punch straight to the dome, blending flavor and performance seamlessly . Inside every 16 fl oz can you’ll find Bulkhead’s exclusive BRAINSTEAM™ nootropic blend, featuring Alpha-GPC for sharper cognition, L-Tyrosine for enhanced focus, and L-Theanine to smooth out caffeine buzz with calm alertness. Plus, essential B-vitamins (B3, B5, B6, B12) and brain-fueling electrolytes round out the performance formula