Independent Research Institute Research Testing Reporting
The Peptide Institute is an independent research institute and news publication covering peptides, GLP-1s and emerging human-performance science.
The stacks and compounds everyone is asking about, explained in a couple of minutes each.
Recovery
The recovery world's favorite pairing: BPC-157 and TB-500, two repair-focused research peptides people combine for tendons, ligaments, muscle and getting back to training.
Explore Wolverine StackSkin & glow
The beauty world's favorite peptide blend: copper peptide GHK-Cu paired with BPC-157 and TB-500, popular with women for skin radiance, firmness and recovery.
Explore GLOWWeight loss
An investigational triple-agonist in late-stage trials, with phase 2 data showing the largest weight reductions yet reported for an incretin therapy.
Explore RetatrutideLean muscle
The fitness crowd's go-to growth hormone pairing: CJC-1295 without DAC plus ipamorelin, two peptides that prompt your own pituitary to release growth hormone, discussed for lean muscle, fat loss and recovery.
Explore CJC-1295 + IpamorelinQuick animated explainers on the compounds everyone is talking about. Tap play, then go deeper on the full research page.
BPC-157
What BPC-157 is and what the research so far suggests.
Explore BPC-157Retatrutide
A quick, plain-English primer on the triple-agonist weight-loss compound.
Explore RetatrutideGLP-1s
Common misconceptions about GLP-1 medications, and what the evidence says.
Explore SemaglutideGLOW & KLOW
How the GLOW and KLOW blends are built and what people use each one for.
Explore GLOWInstitute Investigation
23 samples, 12 sellers, one compound with almost no human evidence behind it. Measured purity ranged from 61% to 98.9%.
More Institute investigations
Independent Testing
View All TestingThe Peptide Institute independently purchases peptide and GLP-1 products from leading companies across the industry and commissions third-party laboratory testing to evaluate what consumers are actually receiving. Our findings feed directly into The Peptide Index™ and our ongoing evaluation of product quality, purity, transparency, reliability, customer experience and fulfillment.
Sterling Compound Co.
Tested
View Lab Report
BioRegen Research
Tested
View Lab Report
Vector Peptide Supply
Tested
View Lab ReportThe Peptide Index™
View Full RankingsOur proprietary Index Score™ evaluates companies using independent testing and a structured set of quality, transparency, reliability, fulfillment and customer-experience factors.
| Rank | Company | Index Score™ | Trend |
|---|---|---|---|
| 1 · rank 1 | Sovrn Research #1 Overall | 98 Index Score 98 out of 100 | no change |
| 2 · rank 2 | 94 Index Score 94 out of 100 | no change | |
| 3 · rank 3 | 92 Index Score 92 out of 100 | no change | |
| 4 | 91 Index Score 91 out of 100 | 1 moved up | |
| 5 | 90 Index Score 90 out of 100 | 5 moved up |
Last updated
Reference pages for 90 compounds, mechanism, evidence and testing.
Browse compoundsIndependent company rankings scored on six weighted dimensions.
View rankings224 anonymously purchased samples sent to third-party laboratories.
See resultsOriginal data-driven reporting on how this industry actually operates.
Read investigationsCompound, company and research discussion between members.
Join the discussionThe full Index Score™ methodology, published openly.
Read the methodologyFive positive phase 3 trials, average weight loss near 28% in the biggest one, and two peer-reviewed papers. Here is the real scorecard, and what is still unknown.
Browse research, testing, news and community discussions by compound.
Real discussions from people following peptides and research.
Reference
Evergreen reference pages on the basics: what peptides are, how to read a certificate of analysis, and how to weigh new research as it lands.
Midlife feeds treat “peptides” like a product aisle. Biology treats them as a molecule class. Here is the calm distinction, plus why mechanism is not the same as proof.
Guides & EducationA portable habit for social feeds: grade mechanism, benefit, safety, and purity claims separately, then place the whole pitch on an evidence ladder.
Guides & EducationA COA is a lab report about a sample under stated methods, not a blessing for personal use. Here is how to read lot, method, date, and lab without turning a PDF into a shopping list.
Guides & EducationWhy We Exist
The Peptide Institute is a independent research and educational publication dedicated to bringing transparency, accountability and reliable information to the peptide, GLP-1 and human-performance space.
Learn About The InstituteIndependent testing, company monitoring and consumer reports to hold the industry to a higher standard.
We analyze scientific literature, clinical data and emerging compounds to separate signal from hype.
Timely news, investigative reporting and education to keep the public informed and empowered.
