VMI Sports - KXR Original High Stimulant Pre-Workout Powder 30 servings

Full description

Some pre-workouts are built to be approachable. KXR Original isn't one of them.

This is VMI Sports' flagship high-stimulant formula, made for lifters who've worked through the mainstream options and stopped feeling much of anything. Each serving brings 400mg of caffeine from a 586mg tri-source complex — fast-acting caffeine anhydrous for the initial hit, plus Infinergy® di-caffeine malate to extend the energy curve and take the edge off the comedown.

Underneath the stimulants sits a genuinely serious focus stack. VitaCholine® at 200mg, DMAE at 300mg and 3mg of Huperzine A work together on acetylcholine — the neurotransmitter behind both mental sharpness and muscular contraction — which is why KXR delivers a focused, dialled-in feeling rather than scattered jitters. 150mg of elevATP®, a blend of ancient peat and apple polyphenols, supports your body's own ATP production for more available energy at the cellular level.

On the performance side, 3.2g of beta-alanine buffers muscular fatigue so the sets that usually end you don't, and 1.5g of taurine adds cell volumisation and cognitive support. Rounding it out is theobromine contributing mild stimulation and vasodilation.

KXR is deliberately energy- and focus-dominant rather than pump-dominant. If you want both, run it alongside a dedicated pump product.

Best for: heavy sessions, early mornings, training days you'd otherwise skip, and anyone with a well-established caffeine tolerance.

How to use

Assess tolerance first: mix half a scoop with 6–8oz of water and take it 15–30 minutes before training. Once you know how you respond, move up to a full scoop.

Maximum one serving in 24 hours. Avoid other caffeine sources on training days, and don't take it within several hours of bedtime.

FAQs

How much caffeine is in KXR Original?
400mg per full scoop, from a 586mg complex combining three caffeine sources.

Is this suitable for beginners?
No. At 400mg caffeine this is roughly double a standard pre-workout. If you're new to pre-workout, start with something in the 150–200mg range.

Will it make me crash?
Less than most. The Infinergy® di-caffeine malate releases more gradually than caffeine anhydrous alone, which flattens the drop-off at the end.

Why do I get tingles?
That's the 3.2g of beta-alanine — a harmless sensation called paraesthesia that settles within 20–30 minutes.

Can I stack it with a pump product?
Yes, and many people do. KXR is light on pump ingredients by design, so a citrulline- or glycerol-based pump formula pairs well.

Warnings

For healthy adults aged 18+ only. Not suitable if you are pregnant, breastfeeding, sensitive to stimulants, or taking any medication — consult your doctor before use. Not intended to diagnose, treat, cure or prevent any disease. Keep out of reach of children.