Pump Stacking: We Ran 7 Different Supplement Combos for 6 Weeks — Here's What Actually Works (And What's Just Burning Your Money)
Combining nitrates, betaine, glycerol, and other pump-focused supplements sounds like a shortcut to skin-splitting vascularity — but does the science actually hold up when you put it to the test? We ran 7 different stacking protocols over 6 weeks with real measurements to find out. Spoiler: some combos genuinely deliver, but most lifters are stacking all wrong.