High Volume

PEScience has built a loyal following among evidence-based fitness enthusiasts, and High Volume reflects their commitment to research-backed formulation. It's a focused, clean stim-free pump product that delivers exactly what it promises.

Pump Quality: 6g L-citrulline is at the clinical dose and provides solid, reliable pumps. The 1.5g Nitrosigine adds a sustained nitric oxide elevation that can last up to 6 hours — meaning your pumps persist well beyond your workout. The addition of 2g L-arginine provides a direct NO precursor pathway alongside citrulline's indirect pathway. It's a thoughtful formula that attacks pump production from multiple angles.

Performance Support: 2g taurine is a generous dose that reduces exercise-induced fatigue and supports cell hydration. Vitamin C at 200mg helps preserve nitric oxide in the bloodstream, extending the duration of your pumps. While these aren't traditional "performance" ingredients like beta-alanine, they meaningfully contribute to workout quality.

The PEScience Difference: PEScience was founded by researchers, and it shows. Every ingredient choice is justified by published research, and the doses match what studies used. No pixie-dusting, no trendy ingredients without evidence, no proprietary blends.

What's Missing: High Volume doesn't include glycerol (for cell volumization), S7, or some of the newer pump ingredients found in products like Pump Serum. The formula is more focused and traditional — which can be either a pro or con depending on your perspective.

Value: At ~$1.94 per serving with only 18 servings, High Volume is on the expensive side. The ingredient quality is high, but the low serving count means you'll burn through a tub quickly if you train 4-5 days per week.

Taste & Mixability: Sour Green Apple and Melon Berry Twist are the standout flavors. PEScience uses a clean sweetener profile, and the flavors taste natural without being overly sweet. Mixes easily with minimal residue.

Who It's For: Evidence-based lifters who trust PEScience's research-focused approach. Evening trainers who want solid pumps without caffeine. Anyone who prefers a clean, focused formula over a kitchen-sink approach.

The Bottom Line: PEScience High Volume is a well-formulated stim-free pump product from a brand with serious scientific credibility. The citrulline + Nitrosigine + arginine combo delivers reliable pumps, and the taurine adds workout endurance support. The only knocks are the low serving count and premium price per serving. If you value PEScience's research-first philosophy, High Volume delivers.