Tissue repair claims and where they come from
The healing literature that drives most recovery-compound marketing is overwhelmingly animal work. What that does and does not permit anyone to conclude.
Related compounds
Evidence graded, not sold
36 compounds · four evidence tiers
Train north.
Age slower.
Thirty-six research compounds, graded by what the evidence actually shows rather than by how loudly a compound is marketed: eight are approved medicines somewhere in the world, eleven have never cleared a human trial. Alongside the library sits a personal record: 84 kg down to 75 kg, now held there, with the compounds behind it named rather than hinted at.
Educational documentation. Research use only. Not for human consumption, and not a substitute for a qualified physician.
36 compounds · evidence graded
A reference library, not a shop window.
Eight categories, and only one of them is weight. Recovery and tissue repair, growth hormone axis, metabolic, cognitive, sleep, dermal. The compounds that matter for staying capable are spread across all of them.
Every entry carries an evidence grade on the card: approved medicine, human trial data, limited human data, or preclinical only. Eight of the thirty-six are approved medicines somewhere in the world. The other twenty-eight are not, and the library says so before it says anything else.
Reference data is only half of it. The other half is arithmetic people get wrong.
The calculator
Reconstitution reference
Milligrams in. Units on the barrel out.
The most common error in this field is not compound selection. It is the conversion between a vial strength, a diluent volume, and what that means on a U-100 syringe. This calculator does that arithmetic and shows the draw.
Draw to
0
IU · U-100
Concentration0.00 mg/ml
Volume drawn0.000 ml
Doses per vial0 doses
Syringe basisU-100
Arithmetic reference for laboratory work. Assumes a U-100 insulin syringe where 100 IU equals 1 ml. Always verify against the certificate of analysis for the specific vial in hand.
Numbers settle arguments. Sources settle the numbers.
The research notes
Research notes
Limitations first, findings second.
Each note opens with what the study could not establish. If most of the evidence is in rodents, the note says rodents in the first line rather than the last paragraph.
Nutrient timing: the effect size problem
Meta-analyses do find an effect for protein timing. The honest question is whether it is large enough to matter once total daily intake is controlled.
Related methodReading a certificate of analysis
Purity percentage, identity confirmation, and the salt form actually supplied. What a COA proves, and the three things it does not.
Open the librarySources settle arguments. A method still needs a person behind it.
Who keeps this record
Who is keeping this record
A 46-year-old with a notebook and no sponsor.
He runs, eats, trains and lives to get healthier and further in control of his own life, and writes all of it down. There is no supplement brand behind this, no coaching funnel at the end of it, and no before-and-after photograph taken in different lighting.
It started as fat loss. Two years of reading turned it into something longer. The compounds worth knowing about at forty-six are mostly not the ones that shift the scale. They are the ones that affect sleep quality, tendon repair, insulin sensitivity, immune function and how well you recover from the training you can still do. Weight is simply the easiest thing to measure, which is why the internet measures almost nothing else.
The record exists because the fitness internet is built on outcomes without method. Someone posts a result; the working is missing. What is published here is the working: the sessions, the weeks where nothing moved, and the research that informed the decisions, with its limitations stated first rather than buried.
Where laboratory compounds appear in this record, they appear as documentation and reference material. They are not recommended, not sold from this site, and not presented as a shortcut.
Read the method- Age46
- BasedThe North, UK
- TrainingStrength & running
- Started at84.0 kg
- Now75.0 kg · maintaining
- SponsorsNone
A record has a starting point. It also has a this-week.
Where it stands now
Where it stands Maintaining
The cut is done. Holding it is the work now.
Losing the weight was the easy half. What is being recorded from here is whether it stays off, and what is being taken while it does.
Weight
75kg
Net change
−9kg
Height
168cm
Readings logged
1
Currently running
Listed because a record that hides its inputs is not a record. This is what is being taken, not a recommendation to take it. Every compound below links to its evidence grade, including the ones graded weakly.
Morning
- NAD+
- SS-31
- MOTS-c
- Semax/Selank
Growth hormone and SS-31 are not in the research library: growth hormone is a prescription-only medicine in the United Kingdom, and SS-31 sits outside the 36 compounds graded here. Both are listed for completeness of the record rather than as reference entries.
Every record needs a method behind it, or it is only a diary.
The method
AI-assisted training
The plan is written after the session, not before it.
Loads, energy, sleep and pain go into a session journal. The next day is built from what actually happened, not from a twelve-week template bought off someone with better genetics.
01
Session memory
Each session is scored against the last one for the same movement, so progression is measured rather than assumed.
02
Full-set progress
Back-off sets and volume count, not just the top single. Most plateaus are visible in the sets nobody posts.
03
Daily conditions
Energy, joint pain and available equipment change the session. The plan adapts to the day rather than overriding it.
04
Reusable prompt
The full prompt is published. Copy it, point it at your own journal, and run the same method without the paywall.
The method produces numbers. The numbers produce a timeline.
The timeline
The log
Two honest points beat a pretty line.
The cut itself was not logged week by week at the time, and inventing a curve to fill that gap would read better and be worth nothing. So the gap stays visible and the log starts from here instead: every reading below is real, dated, and stays in even when it goes the wrong way.
—Starting weight84.0 kg
···Not logged week by week at the time—
NOWGood sleep - slight hangover75.0 kgNAD SS31 MOTS SX/SL HGH GHK EPI
The journal is written. The camera was running too.
On screen
Creator coverage
The episodes, and the people arguing with them.
Episodes from this record alongside coverage from other creators working the same material, including the ones who disagree. The selection turns over every Monday, so the wall never settles into the same handful of voices.
Videos load only when you press play. No YouTube script or cookie is placed before that. Third-party content reflects the views of its creators, not TRAINNORTH:LABS.
Every episode raises the same question. So do the comments.
What people ask
What gets asked
Answered with context, never with a prescription.
These arrive most weeks. The answers are the same each time, which is itself the point: nothing here depends on who is asking.
“Which one should I start with?”
That is a medical question wearing casual clothes, and it cannot be answered by a website that has never met you. What can be answered: which compounds have human evidence behind them and which do not. Start with the grade, not the recommendation.
Open the library“Why is the popular one graded so low?”
Because popularity and evidence are unrelated. Two of the most discussed compounds in this space sit in the bottom two tiers, and several obscure ones are approved medicines. The grade reflects the literature, not the search volume.
How grading works“How do I work out the units?”
This is the question worth answering, and the one most often got wrong. Vial strength divided by diluent volume gives concentration; dose divided by concentration gives volume; volume times one hundred gives units on a U-100 syringe.
Open the calculator“Is any of this actually legal?”
Research materials are supplied for laboratory use only and are not approved as medicines in the UK. Several referenced here are prescription-only medicines. If that distinction matters to your situation, it is a question for a professional.
Read the disclaimersThe same questions come back every week. Here are the rest.
Frequent questions
Straight answers
What this is, and what it is not.
Is any of this medical advice?
No. Everything published here is personal documentation and general education. It is not diagnosis, not treatment, and not a protocol. Speak to a qualified physician before making any health decision.
Is this an online shop?
No. Nothing is sold from this site and there is no payment process on it. This is an educational record and a reference library. Fulfilment, where it happens at all, is handled entirely by an independent supplier.
What does the referral code actually get me?
Nothing extra for you to do, and no code to quote. TRAINNORTH:LABS is paid a referral benefit by the independent supplier on orders that originate here, which is disclosed rather than hidden. The supplier sets its own prices; this site adds nothing to them at the point of enquiry.
How does an enquiry work?
You select the research materials you are interested in, this site helps you assemble a clear enquiry, and you send it to the independent supplier yourself over WhatsApp. No payment, no stock and no dispatch happens here. The supplier sets its own prices and terms, and TRAINNORTH:LABS receives a referral benefit on orders placed with the code.
Why does the library grade evidence so bluntly?
Because the grade is the most useful thing on the card. A compound with strong rodent data and no human trials should not look identical to an approved medicine, and on most sites it does.
If you have read this far and still want research materials, here is the honest route.
Research materials
Research materials · RUO
This site is not a pharmacy.
Catalogue
58 research materials across 122 specifications, from $15 per box.
Price basis
One price is one box of ten vials, not a single vial.
Evidence
29 of 58 carry a grade from the compound library. The rest say so.
Research materials are supplied by an independent third party, not by TRAINNORTH:LABS. Reference pricing is quoted per box of ten vials. Enquiries are assembled here and sent by you, directly to them.
Materials listed are supplied for laboratory research only. They are not intended for human consumption and are not approved as medicines in the UK.
Research enquiry via WhatsAppSupplier WhatsApp Message the supplier on WhatsApp
Opens WhatsApp and addresses an independent supplier. TRAINNORTH:LABS does not hold stock, take payment or dispatch anything, and receives a referral benefit on orders placed with the code.
- Priority order processing
- Priority shipping
- Referral benefit disclosed, not marketed
Questions, corrections, collaborations, all welcome.
Contact
Get in touch
Found an error in the record? Say so.
Corrections to the research notes are genuinely welcome. Cite the paper and it gets updated. What cannot be answered here is anything resembling a personal medical consultation.
Research and content enquiries only. Personal medical questions cannot be answered here. Those belong with a qualified physician who knows your history.