Defib FAQs

How many serves does each tub of Defib have?

Every tub includes 40 full scoops. The full serve is two scoops (21g) where all active ingredient doses are at their optimal levels. A single scoop (10.5g) is suitable for those who prefer a lighter dose or are assessing tolerance.

Is Defib just a stimulant pre-workout?

No. Defib covers four performance systems in one formula: stimulation and drive (Caffeine, SalidroPure, Sabroxy, Juniper Berry), cognitive endurance (ALCar, Citicoline), blood flow (Citrulline Malate, PeptiPump), and cellular hydration (Taurine, Betaine). It is a complete pre-workout, not just a caffeine delivery vehicle.

What makes Defib different from other stim pre-workouts?

Most stimulant pre-workouts load up on caffeine and filler with a handful of underdosed performance ingredients. Defib delivers meaningful doses across every system: 8g Citrulline, 3.2g Beta-Alanine, 2.5g Betaine, 500mg PeptiPump, and a complete focus system with Caffeine, SalidroPure, Sabroxy, and Citicoline.

Can Defib be stacked with Proven?

Yes. Proven provides additional blood flow support through PeakATP and OxyStorm that Defib does not include, along with a higher Tyrosine dose and Uridine for further dopamine and cognitive support. Stacking a half serve of Defib with a full serve of Proven is a potent combination.

How much caffeine is in Defib?

200mg per scoop, 400mg per full serve (two scoops). Assess your tolerance with a single scoop if you are new to high-caffeine pre-workouts or stacking with other caffeine sources.

Why did HR Labs replace RhodioPrime™ with SalidroPure™?

SalidroPure™ delivers the same active compound (salidroside) at 98.5%+ purity via precision fermentation, compared to 1-6% in traditional rhodiola extracts. This means more consistent dosing, better flavour, and a sustainable supply chain not dependent on wild-harvested rhodiola (now CITES-protected). Read the full science of SalidroPure™ here.

How does Sabroxy® support focus under training fatigue?

Sabroxy® slows dopamine clearance (via DAT inhibition) and reduces GABAergic inhibition that builds up with sleep debt and hard training. It also upregulates BDNF for long-term brain health - particularly relevant for contact sport athletes. The mechanism is complementary to caffeine, not redundant. Read the full science of Sabroxy® here.

What does PeptiPump™ do for blood flow in Defib?

PeptiPump™ is an AI-discovered lentil peptide complex that inhibits ACE - an enzyme that constricts blood vessels. This preserves bradykinin (a vasodilator), reduces ADMA (which blocks citrulline from working), and enhances glucose uptake into muscle cells. It improves the conditions for citrulline to be effective rather than duplicating the same pathway. Read the full science of PeptiPump™ here.

Do you ship to New Zealand and Australia?

Yes. Strom Sports NZ is NZ-owned and operated, shipping from Ruapehu, New Zealand. We offer fast tracked shipping across New Zealand and to Australia. All orders include tracking so you can follow your delivery every step of the way.

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