A coenzyme and metabolic molecule. It belongs in a separate longevity evidence track, not inside the peptide library.
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Peptide Intelligence · public knowledge desk
Signal over sales noise.
What a compound is. What it has actually been studied for. What is licensed, investigational or still preclinical — with the uncomfortable unknowns left in.
Education only. No diagnosis, dosing, reconstitution, injection or purchasing guidance.01Licensed use
A regulator has authorised a specific product for a specific indication.
02Human trials
People have been studied, but approval and general use do not follow automatically.
03Early evidence
Small or route-specific evidence that needs careful interpretation.
04Preclinical
Laboratory and animal signals — useful for hypotheses, not treatment promises.
Current signal wire
Today in the evidence.
Registry titles are pulled from the official ClinicalTrials.gov feed. We show the source record rather than turning every update into a claim.
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Compound library
Know the status before the story.
Every profile separates regulated uses from research interest, gaps, safety signals and sport status.
01US-authorised medicine · narrow indication
Growth hormone-releasing factor analogue
Tesamorelin
A synthetic analogue of growth hormone-releasing factor that increases endogenous growth hormone signalling and IGF-1.
02Investigational · human trials
Ghrelin-receptor agonist / growth hormone secretagogue
Ipamorelin
A growth hormone secretagogue studied as a ghrelin-receptor agonist, including trials in post-operative gastrointestinal recovery.
03Unapproved · mainly preclinical
Experimental 15-amino-acid peptide
BPC-157
An experimental peptide widely promoted online for tissue and gastrointestinal recovery, despite the gap between preclinical research and proven human treatment.
04Unapproved · preclinical
Experimental peptide fragment
TB-500
Thymosin beta-4 fragment (LKKTETQ)
A short synthetic fragment associated with thymosin beta-4 marketing. Evidence for full thymosin beta-4 should not be treated as evidence for TB-500.
05Early evidence · route matters
Copper-binding tripeptide
GHK-Cu
Copper tripeptide-1
A naturally occurring copper-binding tripeptide studied in skin biology, extracellular-matrix signalling and cosmetic formulations.
06Phase 3 · investigational
GIP / GLP-1 / glucagon receptor agonist
Retatrutide
LY3437943
An investigational triple receptor agonist being studied in phase 3 programmes for obesity and related metabolic conditions.
07US-authorised medicine · narrow indication
Melanocortin-receptor agonist
PT-141 / Bremelanotide
Bremelanotide is a synthetic cyclic peptide and melanocortin-receptor agonist. 'PT-141' material sold online should not be assumed equivalent to a regulated medicine.
08Unapproved · limited human evidence
Synthetic regulatory heptapeptide
Selank
A synthetic peptide related to tuftsin, promoted online for anxiety, stress and cognitive effects despite a limited and hard-to-generalise evidence base.
09Unapproved · preclinical
Alpha-MSH-derived tripeptide fragment
KPV
Lys-Pro-Val
A three-amino-acid fragment associated with alpha-melanocyte-stimulating hormone research and promoted for inflammatory and wound-healing uses.
10Licensed medicine exists · products are not equivalent
Alpha-MSH analogue
Melanotan I / Afamelanotide
Afamelanotide is a synthetic alpha-MSH analogue. The regulated Scenesse implant must not be confused with unlicensed 'Melanotan I' tanning products.
11Unapproved · significant safety uncertainty
Synthetic melanocortin analogue
Melanotan II
An unapproved melanocortin analogue promoted online for tanning and sexual effects, often through products with uncertain identity and purity.
Keep the categories straight
NAD+ is not a peptide. TRT is not research supply.
Prescription-only hormone therapy requiring symptoms, appropriately timed blood tests, clinical review and ongoing monitoring.
See the clinical boundary ↗Editorial firewall
Knowledge is kept away from the checkout.
The library does not contain buy buttons, dosing protocols or human-use instructions for unapproved substances. “Research use only” text does not neutralise a medicinal claim or make an unlicensed consumer product lawful.
Read MHRA medicines advertising guidance ↗Primary-source desk
Go past the screenshot.
Use the source record, current product information and regulator — not influencer summaries.