1 MORE REP.
The Arsenal
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Science · Discipline · Longevity

The tools I built
to outlast
everything.

Twenty years of coaching, research and practice — distilled into a suite of science-based tools. Built for people who are serious about how long they live and how well they do it.

20
Years coaching
6
Tools. Free.
1
Flagship system
0
Shortcuts
Enter the Arsenal
1 More Rep · The Journey
Twenty years.
One system.
Why this exists
I am 40 years old. I have two boys.
That changed everything.

I have spent two decades studying what actually makes the human body stronger, leaner and more resilient. Not what sells — what works. I built the Peak Performance Protocol, a corporate wellness programme active in the United Arab Emirates. I have coached executives, athletes and thousands of men who wanted to perform at the highest level.

And then, somewhere in my late thirties, I noticed things starting to slow down. Recovery took longer. Energy was less predictable. Being a researcher by nature, I dug into the science. Not the surface level content — the real research. Biological age. VO₂max as a mortality predictor. NAD+ depletion. The data that most coaches never read.

Then Victor was born. Three years ago. And everything changed.
Then Tudor arrived this year. And everything changed again.

Because now I have two boys who need their father. Not just present — strong. Not just alive — capable. And the second one arrived when I was already in my forties. The maths became very clear, very fast.
Cosmin Calin · Father · Coach · 2025

Everything I had studied, practised and taught needed to come together into one system. A protocol you live by — not a programme you follow for 12 weeks and forget. That is what this Arsenal is. Every tool here was built because I needed it first.

NSCA · CSCS
NSCA · CPSS
BSc Exercise Science
Poliquin PICP · L5
Precision Nutrition · L2
20 Years Experience
1 More Rep · Arsenal
Free tools.
No cost. No catch.
Start here · No cost · No catch
Free tools.
No cost. No catch.
Use them. Share them. They exist because I believe everyone deserves access to real science — not just people who can afford a coach. Start here. AgeLess takes it further.
Free · 5 min
Biological Age Test
How old is your body, really?
Most people assume their biological age matches their passport. The research says otherwise. Eight validated markers — resting heart rate, sit-rise test, grip strength, sleep, waist-to-height ratio, heart rate recovery — produce an estimate that is often years away from your chronological age. In either direction.
8 science-based markers from peer-reviewed research
Your biological age estimate with priority actions
Based on Lancet, NEJM and European Heart Journal studies
Test your biological age →
›
Free · Science-based
VO₂Max Lab
The metric that predicts how long you live.
VO₂max — your cardiovascular fitness — is the single strongest predictor of all-cause mortality. More predictive than blood pressure, cholesterol or BMI. A 3.5 ml/kg/min improvement reduces all-cause mortality risk by 13%. This lab gives you the protocols to improve it.
Norwegian 4×4 protocol — the most validated VO₂max method
Live timer with voice coaching
HRV readiness checker · Cooper test estimator
Open the VO₂Max Lab →
›
Free · Daily practice
Arête
Daily discipline. Rooted in Stoicism.
At a crossroads, Heracles met two goddesses. One offered an easy life. The other — Arête — offered everything worth having, but only through hard work and discipline. He chose Arête. That choice is available to you every morning. This app is the practice.
19 daily habits across 4 pillars — Stoicism, Body, Deep Work, Character
309 daily quotes from Marcus Aurelius, Epictetus, Seneca and 25+ philosophers
3-level progression · Morning and evening reflection journal
Begin the practice →
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Nutrition · GLP-1 · Body Comp
Weight management.
Done properly.
Tools that address the most common reasons weight loss fails — wrong protein targets, no structure around eating, and no protocol for people on GLP-1 medications. Free. No login required.
Free · Instant result
Protein Calculator
The number most people never get right.
Protein is the single most important nutritional variable for body composition — for fat loss, muscle building, and especially for anyone on GLP-1 medication. Enter your weight and goal, get your daily target split across meals, with real food examples for each portion.
Daily target in grams · split per meal
Real food examples — chicken, eggs, Greek yogurt, tuna, salmon
Specific GLP-1 mode — accounts for appetite suppression
Calculate your protein →
›
Free · Instant result
Macro Calculator
Calories, protein, carbs and fat — calculated for your goal.
Most people either eat completely by feel, or they count calories without tracking the right ratios. Neither works long-term. Enter your stats and goal — the calculator outputs a full macro split calibrated for fat loss, muscle building, or maintenance, with your daily calorie target.
Full macro breakdown — protein, carbs, fat in grams
Calorie target calculated from your TDEE
Adjusts for training frequency and goal
Calculate your macros →
›
Free · Complete protocol
GLP-1 Protocol
The training and nutrition layer the medication doesn't include.
56–70% of weight lost on GLP-1 is regained within 12 months of stopping — in people who did not train. The medication suppresses appetite. It does not build muscle, change habits, or raise metabolic rate. This protocol covers everything the prescription doesn't: 16-week training programme, nutrition targets, supplement stack, and side effect solutions.
16-week machine-based training programme — 3 phases
Protein and calorie targets specific to GLP-1 users
5 side effects with specific solutions · 8 evidence-based supplements
Open the GLP-1 Protocol →
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1 More Rep · Premium
When free tools
are not enough.
The complete system
When free tools
are not enough.
The free tools will show you what is broken and teach you the science. AgeLess fixes it — systematically, progressively, permanently.
Flagship product €47 · One payment · Yours forever
AgeLess
Live longer. Age less. A complete longevity system.
The biological age test showed you where you are. AgeLess is the 32-week system that moves the needle on every marker — training, nutrition, sleep, recovery, supplementation. Backed by science. Built for people in their thirties, forties and beyond who refuse to accept decline as inevitable.
€47
one payment · no subscription · yours forever
32 weeks of training
Beginner → Olympic
21 daily longevity habits
Weighted scoring
Metabolic system
Fasting · Fat loss · Deficit
Live VO₂max timer
Voice coaching
Sleep · Recovery · Supps
Full protocol
Get AgeLess — €47 →
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1 More Rep · AgeLess
Live longer.
Age better.
What is inside AgeLess
32
Weeks of training
Three levels. Bodyweight to Olympic derivatives.
21
Daily habits
Weighted scoring. Streaks. Expandable science notes.
40
Max daily score
Tier 1–3 habits. Level-adjusted scoring.
8
Week VO₂Max protocol
Norwegian 4×4. Live timer. Voice coaching.
€47
One payment. No subscription. Yours forever.
Not a monthly fee. Not a trial. You pay once and the system is yours — forever. Update your device, reload the link, it works. No account. No login.
1 More Rep · Coaching
Built for you.
One to one.
Cosmin Calin — Strength Coach
Cosmin Calin
CSCS · CPSS · BSc ES
Private coaching
Some people are ready
for the next level.
They know who they are —
and they work with me directly,
without shortcuts.

Every tool in this Arsenal is built on the same methodology I use with 1-on-1 clients. The difference between the tool and the coach is that the coach watches, adjusts and pushes in ways no app can replicate.

Private coaching means direct access to me. A programme built for your biology, your schedule and your goals — not a template. Weekly review. Immediate adjustments. The plan evolves with your progress.

I take a limited number of clients. Not because of marketing — because quality coaching requires real attention. If you are serious, we talk. If it is not the right fit, I will tell you honestly.

Let's talk
Free 30-min intro call · No pressure · Direct access
For organisations · UAE
For your leadership team.
Everything else in this Arsenal is built for the individual. This one is not. It is a corporate engagement — by invitation, for UAE leadership teams who treat health as performance infrastructure.
Corporate only UAE leadership teams · By invitation
Corporate · By invitation
Six Months Younger
Measurably younger in six months. Measured, then moved — guaranteed.
Not for individuals · Corporate engagement only
A 90-day, science-based corporate longevity pilot for the 35+ professional. Biological age and VO₂max — measured at baseline, then moved, guaranteed. Built for UAE leadership teams who treat their health as performance infrastructure, not a perk.
Biological age & VO₂max measured, re-tested and reported
Three tiers — Proof Pilot, Flagship, Equipped
Founding cohorts capped · 90-day results guarantee
For organisations — enquire →
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1 More Rep · Science
Not what sells.
What works.
1 MORE REP.
THE ARSENAL
NSCA · CSCS
BSc Exercise Science
20 Years