Proven Pump

Proven Pump is a stimulant-free, liquid-format nitric oxide booster by Gaspari Nutrition. Unlike powder or capsule pump products, Proven Pump comes as a ready-to-use liquid concentrate that you measure by the capful and mix with water. Each full serving (1 fl oz) delivers 12g Vegetable Glycerol for cell hydration and muscle fullness, 1.5g L-Citrulline and 1g L-Arginine for nitric oxide production, and 1.25g Betaine Anhydrous for endurance support. It contains zero caffeine, is non-GMO, gluten-free, and dairy-free.

Yes. Proven Pump is completely stimulant-free, so there is no caffeine overlap. Stacking the two gives you SuperPump Aggression's energy, focus, and endurance formula (400mg caffeine, L-Tyrosine, Huperzine A, 4g L-Citrulline, 3.2g Beta-Alanine) plus Proven Pump's glycerol-driven cell volumization (12g Vegetable Glycerol). Mix your scoop of SuperPump Aggression into water, add one capful of Proven Pump to the same shaker, and drink 20 to 30 minutes before training. This combination covers both blood flow and intracellular hydration.

Absolutely! Whether you're new to fitness or a seasoned athlete, this formula adapts to your workout intensity and goals.

Most pump-focused pre-workouts contain caffeine, which can be a problem if you train at night, are sensitive to stimulants, or already take a caffeinated pre-workout and do not want to double up. Proven Pump is completely stimulant-free. It uses Vegetable Glycerol (12g) to draw water into muscle cells for fullness, L-Citrulline (1.5g) and L-Arginine (1g) to increase nitric oxide and blood flow, and Betaine Anhydrous (1.25g) for endurance. You can take it at any time of day without affecting sleep or adding to your caffeine load.

When used as directed, this product is generally well-tolerated. However, consult a healthcare provider if you have any medical conditions or are on medication.

The liquid format offers two practical advantages. First, liquid ingredients bypass the dissolution step that powders and capsules require in the stomach, which can mean faster absorption and quicker onset of effects. Second, the liquid format allows Proven Pump to deliver a full 12g of Vegetable Glycerol per serving, which is a large dose that would be difficult to fit into capsules or a reasonably sized powder scoop. Glycerol is the primary cell-hydrating ingredient in the formula, so delivering it at this volume is central to the product's effect.

That full, pumped appearance comes from two things happening at once: increased blood flow to working muscles (vasodilation) and increased water volume inside the muscle cells themselves (cell volumization). Most pump products only address blood flow. Proven Pump addresses both. The L-Citrulline and L-Arginine support nitric oxide production to widen blood vessels, while the 12g of Vegetable Glycerol acts as a hyperhydrating agent that pulls water directly into muscle cells through osmosis, creating visible fullness and a harder appearance.

Both are stimulant-free Gaspari pump products, but they work through different mechanisms and formats. PlasmaJet is a capsule that uses Agmatine Sulfate, GlycerPump (glycerol powder), Beet Root Extract, and an Arginase Inhibitor Matrix to extend nitric oxide availability through multiple pathways. Proven Pump is a liquid concentrate built around a large dose of Vegetable Glycerol (12g) for direct cell hydration, plus L-Citrulline, L-Arginine, and Betaine for NO support. PlasmaJet focuses on sustained vasodilation and pump duration. Proven Pump focuses on immediate muscle fullness and volumization. They can also be stacked together.