AssayIndex
Supplier scorecard

JEEP — Guangzhou JEEP Biotechnology Co., Ltd.

Guangzhou, CN. The index holds 283 assay reports across 50 batches and 28 compounds, contributed by 6 laboratories. Every figure below is computed from those records and from nothing else.

283 reports50 batchesmedian purity 99.43 %documentation 88/100

Where JEEP sells

Guangzhou JEEP Biotechnology Co., Ltd. sells from its own storefront. The link is marked nofollow and sponsored: it exists so the figures on this scorecard can be read against what the supplier itself publishes. The index is paid nothing for it and a link is not an assessment.

Visit JEEP at jeepbio.com →

Every figure above describes lots the index has seen. It says nothing about the lot you are offered, and the only check that does is the one on the certificate against the vial.

Block 1

Identification

Business facts, held constant across the index and not derived from the data. The index sells nothing and takes no supplier payment for placement; the storefront link below is marked nofollow and sponsored so a record can be checked against the seller, and is not a recommendation.

Legal name
Guangzhou JEEP Biotechnology Co., Ltd.
Short code in this index
JEEP
Also known as
JEEP · JEEP Peptides · JEEP Bio
City
Guangzhou
Region
Guangdong
Country
CN
Established
not stated
First record in index
13 Feb 2024
Most recent record
17 Oct 2026
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Block 1b

Dispatch and warehouses

Where the supplier holds regional stock. Material assayed by the index is dispatched from these locations, not from the manufacturing site.

  • 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
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Block 2

Headline statistics

Each figure carries the n it was computed from. The n= badge next to a statistic is the number of records it was computed from. Below n=8 the badge is amber. Below n=3 the statistic is suppressed and the individual values are shown instead.

Median purity 99.43% n=283
Interquartile range 0.73pp n=283
10th percentile 98.59% n=283
Pass rate vs index spec 99.3% n=283
Median recovery vs claim 98.5% n=160
Median water 4.57% n=283
Median |mass error| 2.6ppm n=243
Records carrying a flag 70.7% n=283
022446692.093.094.095.096.097.098.099.0100.092.00–92.25 %: n=092.25–92.50 %: n=092.50–92.75 %: n=092.75–93.00 %: n=093.00–93.25 %: n=093.25–93.50 %: n=093.50–93.75 %: n=093.75–94.00 %: n=094.00–94.25 %: n=094.25–94.50 %: n=094.50–94.75 %: n=094.75–95.00 %: n=095.00–95.25 %: n=095.25–95.50 %: n=095.50–95.75 %: n=095.75–96.00 %: n=096.00–96.25 %: n=096.25–96.50 %: n=096.50–96.75 %: n=096.75–97.00 %: n=097.00–97.25 %: n=097.25–97.50 %: n=297.50–97.75 %: n=197.75–98.00 %: n=298.00–98.25 %: n=698.25–98.50 %: n=898.50–98.75 %: n=2298.75–99.00 %: n=2199.00–99.25 %: n=5199.25–99.50 %: n=4099.50–99.75 %: n=5499.75–100.00 %: n=76median 99.43 Purity (% area) Reports
Figure 1. Purity distribution for all 283 JEEP records carrying a purity figure. Domain fixed at 92–100 % area and bin width 0.25 pp on every purity histogram on this site, so this figure can be compared by eye with any other supplier's. Dashed line is the JEEP median, 99.43 %; the index median is 98.99 %.
Block 3

Reproducibility across independent tests of one lot

Where the same physical lot was assayed more than once, the spread between those results is a property of the material and the fill, not of the market. It is the rarest and most informative statistic on this page, and it exists only for lots someone tested twice.

Median within-batch spread 0.85pp n=36
Index median spread 0.95pp n=20
Lots tested 3+ times 36 n=50

Across the 36 JEEP lots in the index with three or more independent assays, the median spread between the highest and lowest purity result on one lot is 0.85 pp. Interpreting that number requires the laboratory repeatability figures: the best contributing laboratory here repeats to 0.16 pp and the worst to 0.34 pp, so a within-lot spread under about 0.5 pp is indistinguishable from measurement noise and a spread above 1 pp is a statement about the material.

Block 4

Supplier certificate against independent measurement

The supplier's own COA purity figure for a lot, minus the median of the index's independent observations of the same physical lot. Positive means the certificate reads higher than the measurement. Rule AX-R05 fires above 1.5 pp.

Median COA divergence +0.30pp n=50
Index median divergence +0.31pp n=20
Divergences in the supplier's favour 88% n=50
Divergences beyond 1 pp 4% n=50
Block 5

Provenance — where the tested material came from

Supplier-supplied samples are weaker evidence than independently purchased ones, because the supplier chose the vial. The index measures the size of that effect rather than assuming it.

Buyer-sourced median 98.88% n=28
Supplier-supplied median 99.51% n=235
Supplier-supplied share of records 83.0% n=283
97.297.798.298.799.299.6100.1Buyer-sourcedBuyer-sourced: Q1 98.57, median 98.88, Q3 99.13, n=28n=28Supplier-suppliedSupplier-supplied: Q1 99.10, median 99.51, Q3 99.81, n=235outlier 97.39outlier 97.46outlier 97.64outlier 97.97outlier 97.98outlier 98.00n=235Laboratory-retainedLaboratory-retained: Q1 98.85, median 99.26, Q3 99.42, n=20n=20 Purity (% area)
Figure 2. JEEP purity by sample provenance. Tukey box plots: box spans Q1–Q3, the heavy rule is the median, whiskers reach the extreme observations inside 1.5 IQR of the box, and points outside the fences are plotted individually. The vertical line is the JEEP overall median. Groups with fewer than two observations are omitted rather than drawn as a line.
Block 6

Documentation completeness

The score is not an opinion about paperwork. Each component is the share of JEEP batches in the index whose certificate carries that field, weighted as set out on the scoring rubric.

Documentation score 88/100 n=50
Index median score 79/100 n=20
Certificate fieldBatches carrying itRubric weight
Purity figure stated100%25 points
Analytical method stated (column, gradient, wavelength)74%25 points
Peptide content stated62%20 points
Endotoxin stated32%15 points
Named impurities rather than a total63%15 points
Block 7

Coverage by compound

The delta column is this supplier's median minus the index-wide median for the same compound, which is the only comparison worth making: comparing a supplier's aggregate against another supplier's aggregate compares their product mixes as much as their process control.

CompoundClassReportsMedian %Index median %Δ (pp)Index specPass %
BPC-157Tissue-repair4399.4199.15+0.2698.0100
SemaglutideIncretin3999.1398.87+0.2697.0100
TirzepatideIncretin2999.1798.44+0.7397.0100
TB-500Tissue-repair2699.7299.47+0.2598.5100
MK-677 (Ibutamoren mesylate)Non-peptide1399.6099.37+0.2398.5100
CJC-1295 with DACGrowth-hormone1299.2198.79+0.4297.5100
N-Acetyl Semax AmideNeuroactive1299.9399.26+0.6798.5100
LiraglutideIncretin1299.4899.02+0.4697.5100
SS-31 (Elamipretide)Metabolic1199.3999.42-0.0398.5100
PT-141 (Bremelanotide)Melanocortin-receptor1099.4499.31+0.1398.5100
RetatrutideIncretin998.0098.41-0.4196.5100
LeuprolideHypothalamic999.0699.01+0.0598.589
ARA-290Tissue-repair899.0299.45-0.4498.0100
MOTS-cMetabolic899.6799.18+0.4998.0100
Melanotan IIMelanocortin-receptor5 n=599.5799.24+0.3398.5100
L-Glutathione (reduced)Short5 n=599.0899.00+0.0898.5100
SemaxNeuroactive5 n=599.0999.17-0.0898.5100
GHRP-2Growth-hormone5 n=599.4199.22+0.1999.080
GHRP-6Growth-hormone5 n=599.5799.65-0.0899.0100
IGF-1 DES (1-3)Growth-hormone3 n=399.7598.53+1.2295.0100
HexarelinGrowth-hormone2 n=2n<398.72—99.0100
CagrilintideIncretin2 n=2n<398.59—96.5100
IGF-1 LR3Growth-hormone2 n=2n<397.75—95.0100
5-Amino-1MQNon-peptide2 n=2n<399.24—98.0100
EpitalonShort2 n=2n<398.63—99.0100
KPVTissue-repair2 n=2n<399.21—99.0100
ThymulinTissue-repair1 n=1n<399.06—98.0100
PinealonShort1 n=1n<399.24—99.0100

Full per-compound breakdown with distributions and caveats →

97.297.798.298.799.299.6100.1BPC-157BPC-157: Q1 99.07, median 99.41, Q3 99.80, n=43n=43SemaglutideSemaglutide: Q1 98.87, median 99.13, Q3 99.56, n=39n=39TirzepatideTirzepatide: Q1 98.82, median 99.17, Q3 99.48, n=29n=29TB-500TB-500: Q1 99.52, median 99.72, Q3 99.93, n=26outlier 98.85outlier 98.86n=26MK-677 (Ibutamoren me…MK-677 (Ibutamoren me…: Q1 99.38, median 99.60, Q3 99.91, n=13n=13CJC-1295 with DACCJC-1295 with DAC: Q1 98.93, median 99.21, Q3 99.58, n=12n=12N-Acetyl Semax AmideN-Acetyl Semax Amide: Q1 99.86, median 99.93, Q3 99.93, n=12outlier 99.66n=12LiraglutideLiraglutide: Q1 99.24, median 99.48, Q3 99.66, n=12n=12SS-31 (Elamipretide)SS-31 (Elamipretide): Q1 99.04, median 99.39, Q3 99.63, n=11n=11PT-141 (Bremelanotide)PT-141 (Bremelanotide): Q1 99.22, median 99.44, Q3 99.72, n=10n=10RetatrutideRetatrutide: Q1 97.97, median 98.00, Q3 98.64, n=9n=9LeuprolideLeuprolide: Q1 98.89, median 99.06, Q3 99.85, n=9n=9ARA-290ARA-290: Q1 98.79, median 99.02, Q3 99.12, n=8outlier 99.63n=8MOTS-cMOTS-c: Q1 99.34, median 99.67, Q3 99.76, n=8outlier 98.58n=8 Purity (% area)
Figure 3. JEEP purity by compound, for the 14 compounds with at least four JEEP records. Compounds are not equally difficult to make or to measure, so the vertical offsets between rows are largely a compound effect and only partly a supplier effect. Compare a row against the same compound on another supplier's page, never against the row above it.
Block 8

Quarterly trend

Submission volume is not market share and a quarterly median is not a trend unless the compound mix held still. Both caveats apply to every row below.

Median purity by quarter

Quarters with fewer than two purity records are gaps in the line rather than zeroes.

Coverage growth

Records added per quarter. Growth here is index coverage, not supplier volume.

QuarterBatchesReportsMedian purityRangeFlagged
2024-Q11398.8798.19–99.032
2024-Q22799.4399.14–99.725
2024-Q31799.6198.87–99.937
2024-Q475199.0897.39–99.9344
2025-Q12999.5998.65–99.937
2025-Q253799.4498.38–99.9323
2025-Q343299.3598.01–99.9329
2025-Q4104799.7497.64–99.9319
2026-Q173499.4898.53–99.9322
2026-Q273499.2598.38–99.8822
2026-Q342299.7098.51–99.9320

Full quarterly timeline, batch by batch →

Block 9

Which laboratory produced these numbers

Laboratories disagree with each other by a measured amount. A supplier tested mostly by one laboratory carries that laboratory's offset in its aggregate, and the adjusted column removes it.

LaboratoryReportsMedian purityLab bias (pp)Bias-adjusted
Janoshik12899.41+0.0099.41
PeptideMeter5099.44-0.0599.49
Medutest4299.63+0.0899.55
VendorInvestigate2298.81-0.1198.92
Nordanalyt2099.46+0.0299.44
Kestrel2199.91+0.2499.67

Bias figures are estimated from paired same-lot comparisons and are published with their confidence intervals on inter-lab agreement.

Block 10

What this data does and does not show

Block 11

On-the-record reviews 26

Reviews are signed statements from index contributors about their own testing of this supplier's material. They are opinions attached to evidence, and they are not used in any statistic on this page.

96.0/ 1001,015 ratings across the index network
tu.adeyemi97/100

One of the few places that will quote cagrilintide 5 mg at all, and the synthesis came back clean on an independent check.

an.petrov93/100

Sensible packing, sensible timelines, and a certificate that says what it should. No notes.

p.brandt97/100

Quoted 5 days, arrived in 5. Tracking updated at every hop from dispatch to door.

e.zamora97/100

Stock said available, stock was available, and it shipped the same day. That sequence is not as common as it should be.

k.nilsen97/100

Reordered on the strength of the last one and got an identical result. Repeatability is the product.

ma.ilunga97/100

Identity confirmed by mass spec on the certificate, not just an area-percent figure. Both questions answered on one page.

br.osei93/100

Domestic dispatch from their stock in the United States. Straightforward, day 4, exactly as quoted.

so.moreau97/100

Ordered on a Monday from their warehouse in Germany and it was here by day 2. That is the whole case for regional stock.

h.barros97/100

No customs paperwork, no import wait — it came from their stock in the United Kingdom and arrived day 2.

a.moreau97/100

Submitted the MOTS-c 10 mg to Medutest blind, without telling them the source. 98.2% against a stated 97.8%. The number holds up when nobody knows whose vial it is.

f.steiner93/100

Third order and it went the same way as the first two. Predictable in the way you want a supplier to be.

j.bergstrom93/100

Ordered IGF-1 LR3 1 mg twice. Both vials reconstituted cleanly and both matched their certificates.

ja.teixeira97/100

Support answered on a Sunday, correctly, with the batch record attached. That is well beyond what I expected.

i.vukovic97/100

Queried the related-substances total on lot JEE-26-663; they came back with method, column and detection limit. That depth is rare.

s.marchetti97/100

Their warehouse in the United States had the KPV 10 mg in stock and it shipped the same afternoon. Tracking never left the country.

ru.sobczak93/100

Solid on the semax 10 mg. Purity where it should be, transit 5 days, paperwork in order.

n.yildiz93/100

Reliable on the general catalogue lines. Purity figures cluster tightly and the certificates match the lots.

c.okonkwo93/100

Consistent rather than flashy. Everything lands in the high nineties, and it lands there every time.

s.bhattacharya97/100

7 orders in eighteen months, no substitutions, no reformulations, everything in stock when the site said it was. Boring is the highest compliment I have.

h.erdogan97/100

Regional stock makes the difference — dispatched within Germany, day 4, cold pack still hard on arrival.

k.molnar97/100

Cold pack was still hard on arrival in Hamburg on day 3. My logger never went above 7°C across the whole run.

g.nascimento97/100

Vial labels printed rather than handwritten, lot and date legible, cap seal intact on every unit.

r.adeyemi93/100

Everything about the order was routine in the best sense — quoted 4 days, arrived in 4.

ne.demir97/100

PeptideMeter has now seen 3 of their lots through me. Not one has come back outside spec.

ro.kimani97/100

Same lot documentation as the factory ships, but out of their warehouse in Canada, so it landed on day 4.

ra.restrepo97/100

Three compounds on one invoice, all three lot-matched to their own certificates, all three inside spec on independent testing.

Block 12

Most recent records

The 25 most recently submitted JEEP records. All 283 are listed on the full record listing.
ReportCompoundLotLabQuarterPurity %Water %Recovery %ProvenanceFlagsResult
AX-2026-041847TB-500JEEP-2602-V3434Nordanalyt2026-Q399.723.85—Supplier-supplied1MARGINAL
AX-2026-041886SemaglutideJEEP-2607-X3911Nordanalyt2026-Q399.194.0396.4Supplier-supplied2MARGINAL
AX-2026-041882SemaglutideJEEP-2607-X3911Nordanalyt2026-Q399.174.52—Supplier-supplied1MARGINAL
AX-2026-041845TB-500JEEP-2602-V3434Janoshik2026-Q399.724.04102.2Supplier-supplied1MARGINAL
AX-2026-041921TB-500JEEP-2605-M4874Janoshik2026-Q399.901.76—Supplier-supplied2MARGINAL
AX-2026-041922TB-500JEEP-2605-M4874Janoshik2026-Q399.412.6095.7Laboratory-retained2MARGINAL
AX-2026-041928TB-500JEEP-2605-M4874Janoshik2026-Q399.881.8492.8Laboratory-retained2MARGINAL
AX-2026-041849TB-500JEEP-2602-V3434VendorInvestigate2026-Q399.733.6088.6Buyer-sourced2MARGINAL
AX-2026-041926TB-500JEEP-2605-M4874Medutest2026-Q399.932.15106.8Supplier-supplied1MARGINAL
AX-2026-041925TB-500JEEP-2605-M4874PeptideMeter2026-Q399.932.15—Supplier-supplied2MARGINAL
AX-2026-041850TB-500JEEP-2602-V3434Medutest2026-Q399.933.4499.1Supplier-supplied2FAIL
AX-2026-041885SemaglutideJEEP-2607-X3911PeptideMeter2026-Q398.624.04—Supplier-supplied1MARGINAL
AX-2026-041924TB-500JEEP-2605-M4874PeptideMeter2026-Q399.451.54—Laboratory-retained2MARGINAL
AX-2026-041848TB-500JEEP-2602-V3434Janoshik2026-Q399.503.15—Supplier-supplied1MARGINAL
AX-2026-041892HexarelinJEEP-2608-Y4367Janoshik2026-Q399.553.6198.9Supplier-supplied1MARGINAL
AX-2026-041923TB-500JEEP-2605-M4874PeptideMeter2026-Q399.591.63104.1Supplier-supplied2MARGINAL
AX-2026-041884SemaglutideJEEP-2607-X3911Medutest2026-Q399.693.35100.4Supplier-supplied1FAIL
AX-2026-041846TB-500JEEP-2602-V3434Janoshik2026-Q399.933.30—Supplier-supplied1MARGINAL
AX-2026-041881SemaglutideJEEP-2607-X3911Kestrel2026-Q399.933.74—Supplier-supplied0PASS
AX-2026-041883SemaglutideJEEP-2607-X3911Janoshik2026-Q398.514.11—Laboratory-retained1MARGINAL
AX-2026-041927TB-500JEEP-2605-M4874Nordanalyt2026-Q399.761.75105.3Supplier-supplied2MARGINAL
AX-2026-041864PT-141 (Bremelanotide)JEEP-2601-K3015Janoshik2026-Q299.353.9992.2Supplier-supplied0PASS
AX-2026-041893HexarelinJEEP-2608-Y4367PeptideMeter2026-Q399.443.58103.2Supplier-supplied0PASS
AX-2026-041860PT-141 (Bremelanotide)JEEP-2601-K3015PeptideMeter2026-Q299.754.23—Supplier-supplied0PASS
AX-2026-041887Melanotan IIJEEP-2604-R3923Janoshik2026-Q299.565.0595.2Supplier-supplied0PASS