Free shipping on orders over $150  ·  Same-day dispatch from the USA
Third-party tested · Made in the USA

Research peptides with proof of purity.

Every batch is HPLC-verified to 99%+ purity by an independent lab, and every vial ships with its certificate of analysis. For laboratory research use only.

Bacteriostatic Water vial
Research guides

Source-checked research guides

All guides →

OverviewPopular peptidesThe most-searched peptides, their FDA status and what the evidence shows.Investigational drugEloralintideLilly’s once-weekly amylin drug: phase 2 results, ENLIGHTEN phase 3 and current status.ComparisonEloralintide vs retatrutide and tirzepatideTrial numbers, mechanisms and approval status, side by side.Regulatory statusEloralintide FDA approval statusNot approved. Where phase 3 stands and what the timeline looks like.Buying guideCJC-1295 and ipamorelin for saleTwo separate 10 mg vials, each with its own lot-matched certificate and price.Buying guideGlutathione 1500 mg for salePrice, certificate and how to read the 99.76% purity figure.VerificationJanoshik peptide testingHow to verify a Janoshik report and what "third-party tested" proves.VerificationFinnrick peptide testingHow Finnrick scores vendors, what its tests cost and where the data is limited.MitochondrialSS-31 (elamipretide)The FDA-approved drug versus a research vial, and what the trials show.MitochondrialMOTS-c peptideWhat the research shows, FDA and WADA status, and why no dose is established.RegenerativeWolverine peptideBPC-157 and TB-500: the evidence, ranked, and how to vet a blend.RegenerativeBPC-157What the research shows, the human evidence so far, and how to check a vial’s COA.Research blendsKlow peptideWhat is in the 80 mg blend and how it differs from Glow.Buying guideWhere to buy Klow peptideKlow80 price, lot certificate numbers and six checks before you buy. Buying guideWhere to buy KPV peptideKPV 5 mg and 10 mg price, lot certificates and six checks before you buy. Buying guideWhere to buy 5-Amino-1MQ5-Amino-1MQ 10 mg price, lot report and the quantity the lab measured. Buying guideWolverine stack: price and COAWolverine 20 mg price, lot report and what the lab measured in each peptide. Buying guideRetatrutide price: 10, 30 and 60 mgPrice per mg by vial size, a check against four shops, and the two lot reports. Buying guideGHK-Cu vial: price and COAGHK-Cu 100 mg price, lot certificate and five checks before you buy. Buying guideSS-31 for sale: price and COASS-31 50 mg price, lot certificate and five checks before you buy. Buying guideMOTS-c for sale: price and COAMOTS-c 40 mg price, lot certificate and five checks before you buy. Buying guideBPC-157 and TB-500: price and COABPC-157 and TB-500 price, lot certificates and five checks before you buy. Testing guideThird-party tested peptidesFive levels of proof, a ten-minute check for any listing and where our certificates fall.ToolPeptide calculatorReconstitution volume and concentration math for any vial.Research blendsGlow peptideGHK-Cu, BPC-157 and TB-500 in one vial: what the research shows and why no dose exists.GH secretagoguesSermorelin peptideGeref’s FDA history, what child and adult trials showed, and how it compares.GH secretagoguesTesamorelin peptideThe FDA-approved Egrifta, what the trials showed, and what the label warns.GH secretagoguesCJC-1295 peptideWith DAC vs without DAC, and which form human trials actually tested.GH secretagoguesIpamorelin peptideHow it works, the human trial results, and how it differs from CJC-1295.GH secretagoguesCJC-1295 and ipamorelinThe pairing, the GHRH plus GHRP evidence, and what has never been tested.AntioxidantGlutathione peptideOral and injection studies, FDA warnings, and how to read a glutathione COA.Metabolic5 Amino 1MQA small molecule, not a peptide: what the research shows and how to read its COA.ComplianceAre peptides legal?How research-use-only sales are treated and what FDA warning letters say.QualityWhat is a COA?A certificate of analysis explained, with the retatrutide, MOTS-c and SS-31 lot reports.QualityPeptide purityWhat 99% HPLC purity means, how it differs from peptide content, and what EU rules say.QualityPeptide testingWhich tests exist, what a full panel covers, and how to judge a testing lab.QualityWhere to buy retatrutideWhat to verify before you order: lot-specific COA, mass match and red flags.RegulatoryRetatrutide’s FDA approval statusThe 2027 filing timeline, and what “investigational” actually means.ComparisonRetatrutide vs semaglutide and tirzepatideApproval status, brand names and developer, compared side by side.ResearchRetatrutide’s half-lifeWhat the published trial data shows, and what it does not.DirectoryList of peptidesAn A-Z directory: identity, FDA status and sourcing for 35 compounds.GLP & metabolicCagrilintideFDA status, chemistry and the CagriSema filing explained.ComparisonCagrilintide vs retatrutideHow their FDA filing stages and status compare.NootropicSelankApproved in Russia since 2011, not FDA-approved in the US.
Quality & testing

Every batch, tested twice.

Purity claims are easy to make and hard to prove. We publish the proof: each production batch is tested in-house, then verified by an independent US laboratory before it ships.

PEPTRYNCertificate of Analysis
ProductRetatrutide · 10mg
BatchPT-2606-114
MethodHPLC-UV-MS
Purity99.6%
IdentityConfirmed
Tested byIndependent US lab
Ordering

How ordering works

Now accepting card payments. We also support Zelle, CashApp, and crypto (USDT) for those who prefer them. Every order is backed by our reship-or-refund delivery guarantee.

Questions

Before you order

How do I verify a batch’s purity?

Scan the QR code on your vial, or open Lab Results and search the batch number printed on the label. The full third-party COA is published for every batch.

How fast is shipping?

Orders confirmed before 2pm ET ship the same day. Standard shipping is $9.99 and free over $150; most US orders arrive in 2–4 days with tracking.

What if my order doesn’t arrive?

Every order includes tracking and a delivery guarantee — if a package is lost or damaged in transit, we reship it or refund you in full.

Read the full FAQ →

Stay stocked

10% off your first order

Plus restock alerts and new-compound announcements. One email a week, no noise.

Research updates only. Unsubscribe anytime.