The ultimate pre-workout setup — one tub for energy and performance, one tub for pumps and recovery days — and save $10 vs. buying separately. The Prolific + High Volume Stack is one of our top-selling combinations for a reason: it covers every training scenario. Stimulant day, non-stimulant day, or the best of both worlds — this stack has you covered. What’s included: Prolific Pre-Workout — full-spectrum energy, focus, and pumps. Caffeine, cognitive aids, and performance ingredients in one scoop. Beta alanine-free, zero tingle. The last pre-workout you’ll ever need. High Volume — 100% stimulant-free pump powerhouse. 6g L-citrulline, patented NO3-T® amino-nitrates, taurine, and electrolytes. Zero caffeine, zero beta alanine. How to use them: 💪 Full energy day — take Prolific on its own for complete pre-workout coverage 😴 Evening or high-caffeine day — take High Volume solo for pumps without the stimulants ⚡ Maximum performance — stack 1 scoop of each for energy + an insane pump Choose your Prolific flavor and your High Volume flavor independently — mix and match across 6 Prolific × 5 High Volume options. Every workout covered. One stack.