MuscleFier creates premium sports-nutrition products for adults who want clear formulas, credible quality standards and products that fit around real training routines.
MuscleFier creates premium sports-nutrition products for adults who want clear formulas, credible quality standards and products that fit around real training routines.
I've been training for over 40 years. Lifting weights since I was eight years old my dad put a barbell in my hands and that was it. Boxing. Brazilian Jiu-Jitsu. Combat sports have been part of my life ever since. 29 amateur boxing bouts. London ABA finalist three years running.
BJJ purple belt under the Roger Gracie lineage. Decades of early mornings, late sessions, and training around everything life threw at me. For most of those years, I used caffeine-based pre-workouts. They gave me energy. They also gave me crashes, bad sleep, and mornings where I felt worse than before I trained. I put up with it because I didn't know there was another way. I spent two years developing INFRNO.
Over 20 sample versions. Every ingredient chosen for a reason. Every dose tested on myself, in my own sessions, before it went into the final formula. INFRNO is stimulant-free. No caffeine. No crash. No wired nights. Just performance ingredients properly dosed that let me train hard and still function afterwards. I didn't build this to start a supplement brand.
I built it because nothing on the shelf matched how I train or how I live. I wanted something honest. Something I could take at 5AM or 9PM and get the same result without paying for it later. I still take it before every session. Three years and counting. I wouldn't put my name on something I don't use myself.
QUALITY YOU CAN VERIFY
Review the available Certificates of Analysis, third-party laboratory reports and manufacturing documents connected to INFRNO.
“I wanted to create products for people who still care about training hard but now expect greater clarity from what they use.”
John Simmo, Founder, MuscleFier
Most pre-workouts hide behind proprietary blends. You see the ingredients but not the doses. You don't know if you're getting a proper amount or a sprinkle. I've been on the other side of that for years. Trusting labels that weren't being straight with me. INFRNO is fully transparent. Every ingredient. Every dose. On the label. No blends. No hiding.
TESTED. DOCUMENTED. TRANSPARENT.
What’s Inside INFRNO and Why
The key actives in INFRNO, and the exact dose of each.
L-Citrulline
Pump & Performance
8,000mg Per Scoop
Beta-Alanine
Training Endurance
3,200mg Per Scoop
Betaine Anhydrous
Strength & Power
3,000mg Per Scoop
HydroPrime® Glycerol
Hydration & Fullness
2,000mg Per Scoop
Taurine
Hydration Support
2,000mg Per Scoop
L-Tyrosine
Focus & Precision
1,000mg Per Scoop
?
Clear answers about INFRNO, non-stim training, lab testing, delivery and our 30-day guarantee.
Who Is INFRNO Designed For?
INFRNO is designed for adults who want stimulant-free training support without relying on caffeine.Whether you train before work, after work or later in the evening, INFRNO provides a fully dosed, non-stimulant formula to support pump, hydration and performance.
Can I Take INFRNO Every Day?
Yes. INFRNO can be used as part of your regular training routine.On training days, take one full scoop (23.5g) 20–30 minutes before your workout. For lighter sessions, you can use a half scoop (11.75g). Do not exceed one full scoop in a 24-hour period.
Can I Use INFRNO Before an Evening Workout?
Yes. INFRNO is completely stimulant-free, with no caffeine or other stimulants.It's designed for any time of day, including evening training, so you can support your workout without relying on caffeine.
Do You Offer a 30-Day Money-Back Guarantee?
Yes. Every order is backed by our 30-day money-back guarantee.If you're not satisfied with your purchase, contact our support team within 30 days of delivery and we'll help resolve the issue in line with our Refund Policy.
What Makes INFRNO Different From Traditional Pre-Workouts?
INFRNO is designed as a stimulant-free pre-workout option. It is intended for adults who want to follow a pre-workout routine without relying on caffeine.
Does INFRNO Contain Caffeine?
No. INFRNO is completely caffeine-free and stimulant-free. It's designed to support pump, hydration and performance without caffeine, making it suitable for people who train early, late, or simply want to avoid stimulants. Always check the product label for the latest ingredient and allergen information.
Is INFRNO Third-Party Lab Tested?
Yes. Every batch is independently third-party tested for quality and consistency before release.
How Many Servings Are In Each Tub?
Each tub provides 30 full servings, or up to 60 half servings, depending on your session. A full scoop (23.5g) delivers the complete formula, while a half scoop (11.75g) can be used for lighter training sessions.
Made in the UK under controlled manufacturing standards.
Independent testing documentation available for INFRNO.
Produced using documented quality-control processes.
Try INFRNO with the reassurance of our money-back guarantee.
FREE GUIDE — STRAIGHT TO YOUR INBOX
TRAINING FOR REAL LIFE
My free guide to training around work, family and a body that's taken some mileage.
