MARCINLABS
Personal documentary · UK
One journey. No shortcuts.
From 92 kg to 78 kg — personal documentation, AI training, research and educational information on laboratory compounds (Research Use Only).
Educational content. Research Use Only. Not for human consumption. Not medical advice.
00 · What MarcinLabs is
Education, documentation and sources
MarcinLabs is a personal project documenting training, body transformation, research and the knowledge gained along the way. It contains educational materials, topic libraries and links to sources. The content is not medical advice.
Open the Research Materials Library →
↓ Who is Marcin?01 · Protagonist
Who is Marcin?
41 · Peterborough. Strength training, running and a recorded path without marketing filters.
Hi, I am Marcin — a strength training and running enthusiast with years of experience working on my physique and health.
I created MarcinLabs to document a real transformation journey without marketing shortcuts or miracle promises.
My goal is to share practical knowledge and a critical approach to fitness and health information.
- Start
- 92 kg
- Now
- 78 kg
- Change
- −14 kg
- H
- 174 cm
This story has a starting point — and a current chapter.
↓ Current Journey02 · Current state
Current Journey
Week 36: Current state. Weight 78 kg. The series continues.
Week
36
Weight
78 kg
Mood / energy
8/8
A goal is not an ending — it is another checkpoint on a longer path.
Open chapter →Every week also has an episode — the camera walks with the journal.
↓ Latest YouTube video03 · On screen
Latest YouTube video
YouTube
PART 1 | Retatrutide from China goes to an independent lab
Part 1: Retatrutide from China goes to an independent lab. Latest episode — documenting quality and process, not a final result in this film.
Open in hub →
The film ends with a question. Training answers with data.
↓ AI Training04 · Method
AI Training
A session journal: loads, energy, pain. AI plans the next day from real results — not a magic internet program.
Explore the method →Session memory
Compare with previous workouts
Real progress
Not only top sets
Day plan
Energy, pain, equipment
Ready prompt
Copy and start immediately
Progress in the journal becomes a timeline.
↓ Transformation Timeline05 · Season
Transformation Timeline
Each week is a documentary chapter. Jump to any point in the series.
1
Wk
Ground zero
92 kg
2
Wk
Protocol on the table
90.5 kg
4
Wk
First change in the mirror
88 kg
6
Wk
Minus nine
83 kg
7
Wk
Ten percent
82.8 kg
9
Wk
Before vs after
81.5 kg
10
Wk
Dose escalation
80.8 kg
14
Wk
Strength back on the plan
84 kg
Behind the numbers sits mechanism — and an educational library.
↓ Peptide Library06 · Knowledge
Peptide Library
Educational cards: mechanism, research status, risks. RUO materials — no dosing and no therapeutic claims.
Retatrutide
Used in research on substantial body-composition research, appetite and metabolism (GIP/GLP-1/glucagon triple agonist).
Tirzepatide
Used for weight reduction, appetite and glycaemic control (dual GIP/GLP-1 agonist).
Semaglutide
Used in research and clinic for body weight, appetite and type 2 diabetes (GLP-1 agonist).
Cagrilintide
Used in research on satiety, appetite and body weight (amylin analogue; often with GLP-1).
When headlines lie — I return to sources.
↓ Research Hub07 · Sources
Research Hub
Research notes and the knowledge base — critically, with limitations first.
BPC-157 and tissue repair — what does research say?
Review of available preclinical and clinical research on BPC-157. Most are animal studies.
RAD-140 (Testolone) — research review
Critical review of RAD-140 research. Selective androgen receptor modulator with promising but limited results.
Protein timing — does it matter?
Meta-analysis of research on the importance of protein timing for muscle synthesis.
Viewers ask. I answer with context, not a prescription.
↓ Community Questions08 · Community
Community Questions
The most common questions under the videos — gathered in one place.
Where do you buy and how much does it cost?
In the episodes I share context from my process — MarcinLabs is not a shop offer.
Will everyone lose the same amount?
No. Results in the videos are my documentation in a specific window — not a forecast.
Is this a dosing guide?
No. I document my own path. Health decisions always with a clinician.
Before you write — check the FAQ.
↓ Research Materials Library10 · Library
Research Materials Library
An educational index of topics and areas of interest. You can read entries or — optionally — prepare a message for external contact.
Open the full library →Disclaimer — Research Use Only
Materials listed on this website are supplied for laboratory research only (Research Use Only). They are not intended for human consumption.
The full topic library is also available on a dedicated page.
Which areas would you like to explore?
You may select several topics to prepare a message for an external contact. MarcinLabs does not store your contact details or conversation content.
External contact. This referral may have a commercial or advertising character. MarcinLabs does not process payment, shipping or fulfilment.
Select at least one area to continue.
We do not collect your name, email, phone or address in this step.
09 · Ground rules
FAQ
Is this content medical advice? +
Is MarcinLabs an online shop? +
How does the areas-of-interest selector work? +
How often do you publish new content? +
Questions about the site — contact below.
↓ Contact11 · End credits
Contact
Questions about educational content or the site? Contact us. No medical consultations.
MARCINLABS · documentary in progress