Irvin Dulberg
Rare dual-sport elite athlete — champion powerlifter AND IFBB bodybuilder. Started competing at just 17 years old. This extreme dedication and expertise spanning over 25+ years is what powers every Invested In Muscle program.
Born in 1981, Irvin Dulberg began competing in powerlifting at age 17. By 18, he was already French Champion, European Champion, and French Record Holder — extraordinary achievements. At the time, the FFF (Fédération Française de Force) did not yet exist; he competed nationally under the FSGT and changed federation to access the European stage.
25 years later, Irvin continues competing at the highest level — both in active powerlifting and IFBB bodybuilding on the most prestigious stages in the world. His 2024 bodybuilding season included 8 competitions in France, Italy, Belgium, Germany, Luxembourg, and Liechtenstein.
With over 25,600 followers on Instagram at @irvin_dulberg_ifbb, Irvin has built a global community around honest, science-based natural bodybuilding.
Men's Physique 2024
Full 2024 season — from national championship to international IFBB level, the most prestigious federation in the world.
Competition Highlights
Stage presence, competition moments and elite natural bodybuilding intensity — highlights from the best 2024 competitions.
Strength Champion
Irvin began his powerlifting career at age 17 — an elite career spanning over 25 years, from Normandy championships to the European Championships in Helsinki, Finland.
Championship
Methods, Available to You
Every program is built on the same principles Irvin used to compete at the Arnold Classic. No fluff, no gimmicks — just the work.
12-Week Natural Mass Building Program
A complete periodized training system built on Irvin's competition-tested methodology. Progressive overload, recovery protocols, and natural hormone optimization.
- ◆12 weeks of structured training
- ◆Full exercise library with cues
- ◆Progressive overload framework
- ◆Natural recovery protocols
Competition Prep Program
The exact prep system Irvin used to place Top 6 at the Arnold Classic. Peak conditioning without sacrificing hard-earned muscle.
- ◆16-week peak protocol
- ◆Cardio & conditioning guide
- ◆Stage presentation tips
- ◆Weekly check-in framework
Nutrition Guide
Irvin's complete nutritional blueprint - flexible dieting, meal timing, and supplementation for natural athletes who want real results.
- ◆Macro calculation system
- ◆Meal timing strategies
- ◆Natural supplement stack
- ◆Flexible dieting templates
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Science-Backed.
Naturally Formulated.
Clinically dosed. No proprietary blends. No underdosed fillers. Just the compounds that elite natural athletes actually rely on — verified by independent lab testing.
Pure Creatine Monohydrate
Micronized creatine monohydrate — the most researched performance compound in sports science history. Zero fillers, zero artificial dyes, zero compromises. 5g per serving, exactly what the science demands.
- ◆Maximum strength & power output
- ◆Muscle cell volumization & fullness
- ◆Enhanced ATP regeneration
- ◆Cognitive performance support
Natural Recovery Complex
Precision-dosed for natural athletes who know recovery is where muscle is built. Targets deep sleep quality, cortisol management, and natural hormone optimization — the three pillars of overnight growth.
- ◆Deep restorative sleep quality
- ◆Natural testosterone support
- ◆Cortisol & stress reduction
- ◆Overnight muscle relaxation & repair
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What Athletes Are Saying
Natural bodybuilders from across the world share their results.
“Lost 12 lbs while gaining strength over 8 weeks — finally a program that works for naturals. No fluff, no filler, just the actual work that gets results.”
“Irvin's 12-Week program is the most structured training plan I've ever followed. Took my bench from 180 lbs to 215 lbs in one cycle. The progressive overload framework alone is worth it.”
“I've tried 4 different coaches. Irvin's competition prep protocol got me stage-ready in 14 weeks without losing a single pound of hard-earned muscle. The stage presentation section is gold.”
“The nutrition guide completely changed how I approach my diet. Simple, flexible, and it actually works for real life — not just for someone training 6 days a week with zero stress.”
Top 10 Natural Bodybuilding
Secrets from an IFBB Champion
Irvin's personal playbook — the insider knowledge that separates elite natural athletes from the pack. Yours free, delivered instantly.
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Tools We Recommend
Track the work behind your results — Pulsara aggregates your Garmin, WHOOP, and Apple Watch data into one athlete dashboard.
Struggling to stay consistent? This 4-week repeatable framework fixes your system, not your motivation. Perfect companion to your training program.