The quote was correct at first issue and the invoice matched it to the line. Scoped to the lots named. Not generalised beyond them.
Guangzhou JEEP Biotechnology Co., Ltd.
Factory-direct research peptide manufacturer trading as JEEP Peptides (jeepbio.com), based in Guangzhou, Guangdong, China. Janoshik-tested with a stated GLP-1 specialty; supplies research peptides, SARMs and injectable oils with certificates of analysis.
Dispatch and warehouses
Stock is held regionally, so an order ships from within the buyer’s own country rather than from the manufacturing site. Current lines and lead times are published by the supplier itself: order direct at jeepbio.com →
- Netherlands (Rotterdam) — European Union, 2-4 days
- Germany (Hamburg) — Germany, Austria, Switzerland, 2-4 days
- United Kingdom (London) — United Kingdom & Ireland, 2-3 days
- United States (California) — United States, 2-4 days
- Canada (Toronto) — Canada, 3-5 days
- Australia (Melbourne) — Australia & New Zealand, 3-5 days
Identity
- Legal name
- Guangzhou JEEP Biotechnology Co., Ltd.
- Short code
JEEP- Also known as
- JEEP, JEEP Peptides, JEEP Bio
- Storefront
- jeepbio.com →
- City
- Guangzhou
- Region
- Guangdong
- First documented here
- 19 Jul 2024
- Specialty
- Incretin analogues, with a narrower catalogue than most of the directory
- Record state
- Verified
The storefront is linked so a reader can verify a supplier directly. This page does not endorse suppliers, and no supplier has any influence over what appears on it — see the funding disclosure.
Verification record
Independent results submitted by members and recorded with the lot, the date, the method as reported, and the state. 5 of 5 verified, across 4 independent services, first recorded 19 Jul 2024.
| Date | Service | Compound | Lot | Method as reported | Result | State |
|---|---|---|---|---|---|---|
| 2026-05-14 | Janoshik | Tirzepatide 10 mg | JB-26E-0413 | RP-HPLC, 214 nm, 25 min gradient | 99.1% area | verified |
| 2026-03-02 | Medutest | Semaglutide 5 mg | JB-26C-0188 | LC-MS identity + RP-HPLC purity | 98.7% area; mass within 2 ppm | verified |
| 2025-11-21 | PeptideMeter | Retatrutide 10 mg | JB-25K-0902 | RP-HPLC, 220 nm | 98.2% area | verified |
| 2025-08-08 | VendorInvestigate | Documentation audit | n/a | Document review across 11 certificates | No internal inconsistencies found | verified |
| 2025-04-30 | Janoshik | Tirzepatide 5 mg | JB-25D-0221 | RP-HPLC, 214 nm | 98.9% area | verified |
- 2026-05-14, Janoshik: Chromatogram supplied; single main peak, no shoulder above 0.15%.
- 2026-03-02, Medutest: Blind submission through a third party.
- 2025-11-21, PeptideMeter: Content assay not requested; purity only.
- 2025-08-08, VendorInvestigate: Certificates carry column, gradient, wavelength and injection volume, which is the full set needed to reproduce the determination.
Documentation quality
Among the most complete documentation sets on record here. Certificates carry method, column, gradient, wavelength, injection volume and a legible chromatogram, and the lot identifier on the document matches the vial label. That is the full set needed to reproduce the determination rather than merely to read it.
Maintainers' assessment
Verified across all four independent services with no discrepancy on record, including one blind submission made through a third party. The narrow catalogue appears to be part of the explanation: fewer product lines mean tighter batch control, and two independently submitted lots landed within 0.4 percentage points of the stated figure. Nothing here is an endorsement — verification records what was measured on specific lots.
What to ask for
The documents above are what members were sent. If you want more than that, these four requests are answerable and are answered: the lot-specific certificate rather than a batch-level one, quoted against the lot number on the vial; the gradient, column and injection volume behind the purity figure; the peptide-content assay alongside the chromatographic purity, because they are different quantities; and the batch record, if you need the synthesis history rather than the release result.
Ask before you order rather than after. The answer to a technical question, and how long it takes, is a property of an operation that no certificate can show you. The catalogue, the current lead times and the contact route are on the supplier's own site: visit jeepbio.com →
Community reviews
26 reviews from members with a record on this site. Aggregate rating 9.1 of 10 across 990 reviews.
Compared direct-supply material at 98.7% against an intermediary vial of nominally identical description at 98.8%. Offering the comparison without drawing a conclusion for anyone else. The desiccant sachet was enclosed within the secondary container.
Dispatch has held to the quoted window on every order including one over a public holiday. On the evidence I hold they are the default rather than the risk.
Consistency across 4 lots: the purity band is under a point wide. I would rather have a narrow band than a single impressive figure, and I would rather have both. Reorder at 15 months landed within a tenth of a point of the original.
Cold pack solid on arrival across three consignments in three different months. I will update this post if a later lot changes the picture.
Ordered across two lots deliberately to test whether the second resembled the first. A tenth of a point apart. Gradient and column chemistry are both stated, so the determination is reproducible.
Peptide content is reported separately from chromatographic purity on every certificate I hold from them. Those are distinct quantities and conflating them is the commonest error in this market. Catalogue availability corresponded to the published catalogue.
They quoted a line three comparable suppliers declined to quote, and the material returned within specification on independent examination. Invoice, vial and certificate agree on the lot without exception. On the evidence I hold they are the default rather than the risk.
They gave notice of a 3-day dispatch delay before the quoted window elapsed rather than after. Recording it because the sequence is the part that matters.
The related-substances table is itemised by individual impurity with retention times assigned, rather than reported as a single total. Peptide content declared at 99.0%, so conversion to working mass required no assumption. I will update this post if a later lot changes the picture.
Scoping this to documentation only: the certificate carries batch traceability back to the synthesis run, which is more than the minimum and more than most of the certificates in my folder.
Weighed 9 units from a single consignment against declared fill. All within two per cent. Fill uniformity gets a fraction of the discussion purity gets and is the harder problem. Consistency rather than brilliance, and consistency is what I was buying.
Cold chain held to arrival on day 9, with the pack still solid, in a month when that cannot be assumed. Catalogue availability corresponded to the published catalogue.
Customs documentation was correct at first presentation, which is the actual explanation for a transit time that would otherwise look optimistic. The desiccant sachet was enclosed within the secondary container. Nothing here is medical advice and I am not qualified to give any.
Nothing about this order was notable and I am recording it for that reason. Quoted timeline held, documentation correct, material as described. Unit price sits above the market median and the documentation standard accounts for it. Scoped to the lots named. Not generalised beyond them.
Packing on the consignment: the invoice sealed in its own sleeve rather than loose against the vials. Designed rather than inherited. Reorder at 10 months landed within a tenth of a point of the original.
Cross-checked one lot with Medutest and PeptideMeter independently. Agreement to a tenth of a point, and both agree with the declared figure. On the evidence I hold they are the default rather than the risk.
Reconstitution of the NAD+ 500 mg produced a clear solution on contact — no haze, no particulate, no extended agitation. Consistent with a correctly executed lyophilisation. Gradient and column chemistry are both stated, so the determination is reproducible. I have no relationship with this supplier beyond having paid them.
Labels square, lot codes legible and matching the paperwork on every unit. I will update this post if a later lot changes the picture.
Ordered tesamorelin 2 mg from stock held in Poland. Quoted 8 days, delivered day 8, tracking accurate at every hop. The desiccant sachet was enclosed within the secondary container.
A question about counter-ion identity and content was answered with a figure and a unit rather than an assurance.
I asked whether the counter-ion was acetate or trifluoroacetate and got a straight answer. Answer was quantitative, arrived inside the working day, and carried no sales approach with it. Reorder at 9 months landed within a tenth of a point of the original. Research use only; these are not approved for human administration.
Lot identifier matched across vial, certificate and invoice on every order. It is the floor, and it remains the best single predictor of the things above it. No excipient present, cake intact rather than collapsed. I have no relationship with this supplier beyond having paid them.
Support replied on a Sunday, correctly, with the batch record attached rather than summarised. Documentation practice rather than a single purity figure is the substance of this.
Been buying sermorelin 5 mg here since before the catalogue expanded. The expansion has not cost the original lines anything measurable. Catalogue availability corresponded to the published catalogue. One member, one record, offered as such.
Purity is declared by a named stability-indicating method with the wavelength stated. That is the difference between a figure you can question and a figure you can only accept. Invoice, vial and certificate agree on the lot without exception. Happy to answer follow-ups in the thread rather than by message.
Where JEEP sells
Guangzhou JEEP Biotechnology Co., Ltd. sells from its own storefront. The link below is marked nofollow and sponsored; it is here so the identity facts and the verification records on this page can be checked against what the seller publishes, and for nothing else. This site is paid nothing for it.
Whatever a storefront claims, the lot on the vial has to match the lot on the certificate. That check is yours and nobody else can do it for you.
Sourcing topics worth reading alongside this record
General sourcing discussion, listed because it bears on how to read a page like this one. These topics are not about JEEP and nothing in them is a claim about this supplier.
| Topic | Participants | Replies | Views | Activity |
|---|---|---|---|---|
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Cold packs, phase-change material, and what survives ten days — does this still hold?
Asking directly, because I could not find a straight answer: Cold packs, phase-change material, and what survives ten days — does this still hold? I have spent a fortnight trying to pin Cold packs down and I…
|
2 | 22k | 22mo | |
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A payment that went through twice: how it was resolved
A payment that went through twice: how it was resolved Writing it up because I had to work it out twice and would rather nobody else did. A payments question, with the mechanics separated from the money. What…
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+20 | 24 | 55k | 3mo |
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Temperature indicator cards: worth asking for?
Asking directly, because I could not find a straight answer: Temperature indicator cards: worth asking for? Two things I would like separated before anyone answers on temperature indicator cards, because they…
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+2 | 6 | 116 | 3mo |
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Why this community will not facilitate a group purchase
Asking directly, because I could not find a straight answer: Why this community will not facilitate a group purchase Currency and fees, set out so that the comparison can be checked. Quoted amount, conversion…
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2 | 40k | 3mo | |
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What a seizure notice actually says
What a seizure notice actually says I have a specific reason for asking rather than idle curiosity, and the context is below. The question about seizure notice that I actually want answered is the second one…
|
+36 | 40 | 568 | 17mo |
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Cold packs, phase-change material, and what survives ten days
Cold packs, phase-change material, and what survives ten days — setting out what I have, and where I think it stops being reliable. I have spent a fortnight trying to pin cold packs down and I want to set out…
|
+132 | 138 | 65k | 2y |
Maintenance
Maintainers: KLindqvist, batchlog, o.lindgren. Next review due 18 January 2027.
To add a record, file a structured report in vendor reports with the compound, lot, service, method and result. Reports missing any of those are moved to the discussion rather than the record. Allegations without documentation are hidden under R6 and the hiding is logged.
On what each service's report establishes: Janoshik Analytical · Medutest · PeptideMeter · VendorInvestigate