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Infrno Pre Workout

Infrno Pre Workout

Regular price £39.95 GBP
Regular price £45.00 GBP Sale price £39.95 GBP
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⚡ Skin-Splitting Pumps

💪 Stimulant-Free Performance

🔥 Clinically Dosed Ingredients

Note: Limited Stock Remaining

  • 2 Day Delivery
  • 3rd Party Lab Tested
  • Email Support

How It Works

Follow these steps to get the most out of INFRNO — your ultimate pump and performance pre-workout.

1️⃣ Mix 1 scoop (approx. 21.5g) with 250–300 ml of cold water about 20–30 minutes before training.

2️⃣ Train hard. Feel the muscle fullness, vascularity, and focus kick in as INFRNO’s ingredients peak.

3️⃣ Stay hydrated. Keep sipping water during your session to maximise hydration and performance.

4️⃣ Cycle smart. Use INFRNO for 8–12 weeks, then take a 2–4 week break to maintain maximum effectiveness.

💡 Pro Tip: For insane pumps, stack INFRNO with adequate carbs and hydration before your workout.

⚠️ Do not exceed 1 scoop in 24 hours. Intended for use on training days only.

What Is Actually Inside INFRNO?

WHAT'S INSIDE INFRNO

Serving Size: 1 Scoop (~23.5g) | 30 Full Servings Per Tub

Every ingredient. Every dose. Fully transparent. No proprietary blends.

💥 L-Citrulline — 8,000mg

The king of pump ingredients — and we've maxed it out. L-Citrulline converts to L-Arginine in your kidneys, which then drives nitric oxide production. Nitric oxide relaxes and widens your blood vessels, flooding your muscles with blood, oxygen, and nutrients. The result is intense, visible, skin-splitting pumps that you can feel from your first set. Research supports 6–8g as the clinical range for performance benefits. INFRNO delivers a full 8,000mg — the top end of what science recommends. Most competitors sit at 3–4g and hope you won't notice.

What you'll feel: Fuller muscles, more vascularity, better endurance, and pumps that last well beyond your session.

⚡ Beta-Alanine — 3,200mg

That tingling sensation? That's Beta-Alanine doing its job. It increases carnosine levels in your muscles, which acts as a buffer against hydrogen ion build-up — the acid that causes that burning sensation when you're pushing through your final reps. With higher carnosine levels, you can train harder for longer before fatigue sets in. The clinical dose sits at 3,200mg, which is exactly what we've included. This isn't about overstimulation — it's about extending your work capacity so every set counts.

What you'll feel: More reps before failure, reduced muscle burn during high-rep sets, and improved endurance during intense training.

🔥 Betaine Anhydrous — 3,000mg

Also known as Trimethylglycine (TMG), Betaine is a powerhouse for strength and body composition. It works as an osmolyte — meaning it helps your muscle cells retain water, increasing cellular volume and protecting them under stress. Studies show Betaine supplementation supports increases in power output, workout volume, and lean mass over time. At 3,000mg, INFRNO delivers a full clinical dose. Betaine also helps regulate homocysteine levels, supporting cardiovascular health — something that matters more and more after 40.

What you'll feel: Improved strength output, better muscle fullness, and enhanced recovery between sets.

💧 Taurine — 2,000mg

Taurine is one of the most abundant amino acids in your body — concentrated heavily in your muscles, brain, and heart. It supports hydration at the cellular level, acts as an antioxidant during intense exercise, and helps regulate electrolyte balance. For men 40+, Taurine's cardiovascular support is particularly valuable — it helps maintain healthy blood pressure and supports heart function under physical stress. At 2,000mg, INFRNO provides a strong performance dose that complements the hydration effects of HydroPrime.

What you'll feel: Better hydration, reduced cramping, smoother energy during your session, and improved focus.

💧 HydroPrime® (Glycerol Powder) — 2,000mg

Most pre-workouts chase pumps through one pathway — nitric oxide. INFRNO goes further. HydroPrime® is a patented, ultra-stable form of glycerol that drives water directly into your muscle cells, creating a completely different kind of pump — a deep, volumised, water-based fullness that stacks on top of your NO-driven vascularity. Your body enters a state of hyperhydration, meaning your muscles hold significantly more water than normal. Unlike older glycerol products that clumped and tasted terrible, HydroPrime® is the most stable, highest-concentration glycerol on the market.

What you'll feel: Three-dimensional fullness. Not just veins — thick, volumised, hydrated muscles. Better endurance and reduced cramping.

🧠 L-Tyrosine — 1,000mg

Training isn't just physical — it's mental. L-Tyrosine is an amino acid precursor to dopamine, norepinephrine, and adrenaline — the neurotransmitters that govern focus, motivation, and your ability to push through discomfort. When you're under stress (like an intense workout), your body burns through these neurotransmitters fast. Tyrosine tops them back up. At 1,000mg, INFRNO provides enough to sharpen your mental edge without any stimulants or caffeine. Train in the evening and still sleep like you should.

What you'll feel: Sharper focus, better mind-muscle connection, and sustained mental drive through your entire workout.

🏔️ Himalayan Pink Salt — 500mg

This isn't a gimmick — it's functional electrolyte support. Himalayan Pink Salt provides sodium alongside trace minerals including potassium, magnesium, and calcium. Sodium is critical for muscle contractions, nerve signalling, and maintaining blood volume during training. When you sweat, you lose sodium fast — and low sodium means weaker contractions, cramps, and poor pumps. 500mg ensures your electrolyte balance stays topped up so your muscles fire properly and your pumps stay full.

What you'll feel: Better muscle contractions, reduced cramping, and pumps that hold rather than deflate mid-session.

🍇 Grape Seed Extract (95% Proanthocyanidins) — 250mg

A potent antioxidant that directly supports blood flow and cardiovascular health. Grape Seed Extract contains 95% proanthocyanidins — powerful compounds shown to improve endothelial function (the lining of your blood vessels), support nitric oxide availability, and reduce oxidative stress during exercise. For men 40+, this ingredient pulls double duty: it enhances your pump by keeping blood vessels healthy and flexible, while also providing long-term cardiovascular protection. It works synergistically with L-Citrulline to maximise blood flow.

What you'll feel: Enhanced vascularity, improved blood flow, and the confidence that your pre-workout is supporting your long-term health — not just your next session.

🔬 AstraGin® — 3.5mg

A patented, plant-derived compound made from Astragalus membranaceus and Panax notoginseng. AstraGin® is included as a bioavailability enhancer — it increases the absorption of key amino acids in your gut, meaning more of the L-Citrulline, Beta-Alanine, and other active ingredients in INFRNO actually reach your bloodstream. Research has shown AstraGin® can increase Citrulline absorption by up to 45% and Arginine absorption by up to 67%. It also supports gut wall integrity and a healthy microbiome. Think of it as the ingredient that makes every other ingredient work harder.

What you'll feel: You won't feel AstraGin® directly — but you'll feel everything else more effectively because of it.

THE BOTTOM LINE

INFRNO contains 9 active ingredients, all at clinically relevant doses, with zero proprietary blends and zero stimulants. Every ingredient is listed. Every dose is shown. What's on the label is in the tub.

This isn't a pre-workout that relies on caffeine to make you think it's working. This is a formula engineered for men who've been training long enough to know the difference.

🇬🇧 UK Made | 🔬 Third-Party Lab Tested | ☕ Zero Caffeine | 🏋️ 30 Full Servings

Shipping Info

We deliver fast, reliable, and fully tracked shipping on every order. Most UK orders arrive within 2 business days, while international orders typically land within 7–20 business days, depending on your location.

Every order is handled with care and dispatched as quickly as possible from our fulfilment partners to get your INFRNO in your hands and your training dialled in — fast.

If you have any questions about your shipment or need support, our customer service team is here to help — we respond fast, just like our shipping.

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⭐⭐⭐⭐⭐

“This Pre hits hard without the stim shakes. My arms looked twice the size after taking this. Great pumps and endurance for the hard sessions.”

– Daniel P. Leeds

Clinical Doses. Real Pumps

Every scoop of INFRNO delivers 8,000mg of L-Citrulline, 3,200mg of Beta-Alanine, and 2,000mg of HydroPrime®, all at the doses research actually supports.

No stimulants masking a weak formula.

Why People Love INFRNO 🔥

  • 1. Vascular Pumps

    Every scoop floods your muscles with blood and hydration for next-level fullness and vascularity.

  • 2. Clean Power, Zero Crash

    Experience powerful endurance and focus without caffeine, jitters, or the dreaded post-gym crash.

  • 3. Clinically Dosed Formula

    Clinically dosed ingredients. Third-party tested quality. Made in the UK.

Strength Meets Endurance

3,200mg of Beta-Alanine buffers the burn so you push through when others stop.

3,000mg of Betaine Anhydrous drives power output and cell volume.

Together, they let you lift heavier and last longer, without a single milligram of caffeine.

Focus. Power. Precision.

1,000mg of L-Tyrosine fuels dopamine and focus so your mind stays locked in when the weight gets heavy.

2,000mg of Taurine supports hydration, steady energy, and cardiovascular function — no caffeine, no crash, no 2am ceiling stare.

FAQ

What makes INFRNO different from other pre-workouts?


INFRNO is built for real performance — not hype. It’s a stimulant-free formula packed with clinically dosed ingredients for insane pumps, strength, and endurance — without the crash, itch, or jitters.

Will I feel it working if there’s no caffeine?

Absolutely. The pump, focus, and drive come from increased blood flow, hydration, and muscle cell volumization — you’ll feel it from your first set.

Is INFRNO suitable for all training styles?

Yes. Whether you’re lifting heavy, chasing endurance, or hitting functional training, INFRNO enhances pump, performance, and focus across all types of workouts.

What’s your return policy?

We don’t offer refunds — because we back our product’s performance 100%. Every batch is third-party lab tested for purity, potency, and consistency.

How do I get in contact?

For any questions about your order or our products, reach out to our team at info@musclefier.com — we respond quickly and always aim to help.