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Open a record
Every peptide is tagged approved, investigational, or research — then graded by the strength of human evidence, not the volume of forum posts.
Browse the libraryNew here · The peptide record
Strand publishes articles on peptide evidence — not a store, and not a protocol mill.
We catalog approved medicines next to research compounds, name the mechanism, and grade the trials. Nothing here is a prescription.
How to use Strand
How to use Strand
Start with a record. The rest is optional.
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Read the method
If the grades are new to you, start with an article. Learn how a trial, a mouse study, and a research vial are different objects.
Open the articles03
A questionnaire, if you want one
Four optional questions about your aims and constraints. You get a ranked reading list with caveats — never a stack, a cart, or a dose.
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Keep a profile
Sign in to save the questionnaire, bookmark records, and leave private notes. The letter at the top is for people who just want the next article.
Create a profileLibrary
Four records to start with
Semaglutide
ApprovedHigh
Metabolic
The best-documented incretin medicine in current use. Large randomized trials support clinically meaningful weight loss and glycemic improvement, with a well-characterized gastrointestinal adverse-effect profile and a boxed warning related to thyroid C-cell tumors in rodents.
Open recordTirzepatide
ApprovedHigh
Metabolic
A dual incretin agonist with the strongest average weight-loss among currently approved peptide medicines. SURMOUNT and SURPASS programs are the evidence base. Same incretin-class cautions as GLP-1 monotherapy, plus the need to treat it as a prescription drug, not a wellness peptide.
Open recordBPC-157
ResearchPreclinical
Regenerative
The internet's favorite 'healing peptide.' The rodent literature is large and often positive for gut, tendon, and muscle injury models. Quality human RCTs are essentially absent, and US compounding policy has moved against it.
Open recordMOTS-c
ResearchPreclinical
Mitochondrial
One of the more scientifically interesting mitochondrial-derived peptides. Mouse metabolic data are real. Jumping from that to a self-administered longevity drug is not.
Open recordArticles
Latest articles
Getting them · 11 min
How to get peptides, and who pays
Doctor and pharmacy, compounding, trials, grey market, insurance — including Medicare’s 2026–2027 weight-loss program.
Longevity · 7 min
Mitochondrial peptides: MOTS-c and the early map
A 16-residue sequence encoded in mtDNA, a cardiolipin-binding tetrapeptide in actual trials, and the distance between a mouse and a protocol.
Getting them · 8 min
Research vials are not pharmacy drugs
Approved drugs, compounded copies, and “not for human use” powders are three different objects.