451 ACTIVE ︎
A LOOK INSIDE ︎︎︎
Built on a 2-phase progression structure that will force your muscles to grow ︎︎︎
PHASE 1 (WK 1-6)
"INITIAL GROWTH PHASE"
High-volume hypertrophy training — building muscle size and laying the foundation that most lifters never properly establish.
"INITIAL GROWTH PHASE"
High-volume hypertrophy training — building muscle size and laying the foundation that most lifters never properly establish.
PHASE 2 (WK 7-12)
"INTENSIFICATION PHASE"
Heavier weights, scaled volume, lower rep ranges. Switching stimulus to drive continued muscle growth through to week 12.
"INTENSIFICATION PHASE"
Heavier weights, scaled volume, lower rep ranges. Switching stimulus to drive continued muscle growth through to week 12.
"I scrolled back through years of training in my notes app. I realised I was lifting similar weights and reps almost the entire time. So when I finally switched to the right structure, I couldn’t believe my physique grew more in 3 months than it had in years."
Jeff – @jeffhuynhfit
"I've tried three different plans before this. They all looked the same... a massive spreadsheet and hard to follow. This was the first plan that I enjoyed using."
Kevin T. — Verified Buyer
This is for you if...
✔︎ You've been training for months (or years) but progressing very slowly
✔︎ You're skinny and want to put on real mass
✔︎ You want to lose weight, whilst putting on muscle
This is not for you if...
✕ You're looking for an easy shortcut
✕ You'll open it once, get to week 2, and stop
✕ You keep delaying starting
300+ in the community and growing.
You guys are the proof.
★★★★★
"Since starting Jeff's plan three months ago, I've already gained 4kg in lean mass, added 30kg to my squat and 10kg to my bench press."
Tim A. — Verified Buyer
★★★★★
"I was on a different plan before, but my mum only noticed a change after I switched to this one. That's when I realised the skull crushers and curls were actually doing something."
Garett T. — Verified Buyer
★★★★★
"I started seeing real results after 2-3 weeks. The structure is unlike anything I'd tried before — you actually know exactly what to do and why."
Andrew M. — Verified Buyer
"I started seeing real results after 2-3 weeks. The structure is unlike anything I'd tried before — you actually know exactly what to do and why."
Andrew M. — Verified Buyer
★★★★★
"For the first time in my life I've actually stuck to a gym routine. Not because I forced myself — because the plan made it easy to keep going."
Emmet C. — Verified Buyer
"For the first time in my life I've actually stuck to a gym routine. Not because I forced myself — because the plan made it easy to keep going."
Emmet C. — Verified Buyer
I thought I needed a coach.
Turns out I just needed a system.
A coach charges £1000+ and only works while you're paying. This is one system you can adapt, yours forever.
A PT session
£60
per session · one day
12 weeks with a coach
£1000+
average · stops when they do
The BUILD system
£69
once · yours forever
FAQ
I can't seem to put on muscle. Will this actually work for me?
Yes. The system was built specifically with this in mind. The progressive overload structure is fully built into the plan so your body is always growing. The nutrition chapter sets your calorie surplus clearly. And the mentality chapter deals directly with the mindset that holds most skinny guys back.
How is this different from other plans out there?
Most plans are a fixed spreadsheet. You follow it once and finish it. This is a fully adaptable training system, designed to be repeated. It runs in two phases, so the training shifts as your body adapts and you keep growing instead of stalling halfway through. You decide how many days you train, whether that’s 3, 4, 5 or 6 days a week. And it's built so you can adjust as your goals change, like switching to a cut phase after your initial bulk.
What do I actually get?
Two things. The 12-week training system PDF, and the companion app you train from. The plan is the system: the structure, the progression, the nutrition. The app is how you follow it day to day, every session and every exercise with a short demo video, a quick visual reference so you know the movement, not a full coaching breakdown. You keep your own numbers, in your notes app or a notebook.
What equipment do I need?
Standard commercial gym equipment (barbells, dumbbells, cables, machines).
Do I need to track calories every day?
You set your targets once. Your maintenance calories calculated, then adjusted for your goal (bulk, maintain, or cut). It's about being consistent, and not obsessing over every gram.
How does the 2-phase structure work?
Weeks 1–6 (Initial Growth Phase) focus on high-volume hypertrophy, building muscle size with progressive volume. Weeks 7–12 (Intensification Phase) increase load, reduce volume, and lower rep ranges. Switching stimulus prevents your body from plateauing and drives continued growth all the way through week 12.
Can I do this if I'm slightly overweight rather than skinny?
Yes. This is also designed for body recomposition (building muscle while losing fat). If you're carrying a bit of extra weight and want to get lean and athletic rather than just lighter, the system works exactly the same way. The nutrition chapter sets your calorie target based on your specific goal, whether that's a surplus to bulk or a slight deficit to recomp. The training is identical.
What if I've never trained before?
If you're a complete beginner, start with my Foundation plan first to lock in the basics, then come back to this. If you've already been training a bit, this is built for exactly where you are.
Most plans are a fixed spreadsheet. You follow it once and finish it. This is a fully adaptable training system, designed to be repeated. It runs in two phases, so the training shifts as your body adapts and you keep growing instead of stalling halfway through. You decide how many days you train, whether that’s 3, 4, 5 or 6 days a week. And it's built so you can adjust as your goals change, like switching to a cut phase after your initial bulk.
What do I actually get?
Two things. The 12-week training system PDF, and the companion app you train from. The plan is the system: the structure, the progression, the nutrition. The app is how you follow it day to day, every session and every exercise with a short demo video, a quick visual reference so you know the movement, not a full coaching breakdown. You keep your own numbers, in your notes app or a notebook.
What equipment do I need?
Standard commercial gym equipment (barbells, dumbbells, cables, machines).
Do I need to track calories every day?
You set your targets once. Your maintenance calories calculated, then adjusted for your goal (bulk, maintain, or cut). It's about being consistent, and not obsessing over every gram.
How does the 2-phase structure work?
Weeks 1–6 (Initial Growth Phase) focus on high-volume hypertrophy, building muscle size with progressive volume. Weeks 7–12 (Intensification Phase) increase load, reduce volume, and lower rep ranges. Switching stimulus prevents your body from plateauing and drives continued growth all the way through week 12.
Can I do this if I'm slightly overweight rather than skinny?
Yes. This is also designed for body recomposition (building muscle while losing fat). If you're carrying a bit of extra weight and want to get lean and athletic rather than just lighter, the system works exactly the same way. The nutrition chapter sets your calorie target based on your specific goal, whether that's a surplus to bulk or a slight deficit to recomp. The training is identical.
What if I've never trained before?
If you're a complete beginner, start with my Foundation plan first to lock in the basics, then come back to this. If you've already been training a bit, this is built for exactly where you are.
30-day money back guarantee.
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