The 6-12-25 method is a proven hypertrophy protocol that targets strength, size, and endurance in one giant set (and yes, it's fun). It’s making a comeback in the new FLEX program cycle. Here’s how it works: 🔹 6 reps heavy – max motor unit recruitment 🔹 12 reps moderate – mechanical tension for hypertrophy 🔹 25 reps light – metabolic stress and blood flow Minimal rest between movements, full rest after each set. Total upper body stimulus. Today’s example from the upcoming training cycle: 2-3