AssayIndex
Supplier scorecard

HJ — Hubei Jianxiang Bioscience Co., Ltd.

Xianning, CN · established 2015. The index holds 248 assay reports across 51 batches and 19 compounds, contributed by 6 laboratories. Every figure below is computed from those records and from nothing else.

248 reports51 batchesmedian purity 98.98 %documentation 83/100

Where HJ sells

Hubei Jianxiang Bioscience 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 HJ at hubeijianxiang.net →

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
Hubei Jianxiang Bioscience Co., Ltd.
Short code in this index
HJ
Also known as
HJ · HJ Biotech · Hubei Jianxiang Bioscience
City
Xianning
Region
Xianning
Country
CN
Established
2015
First record in index
08 Feb 2024
Most recent record
08 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 98.98% n=248
Interquartile range 0.96pp n=248
10th percentile 98.04% n=248
Pass rate vs index spec 94.8% n=248
Median recovery vs claim 97.8% n=143
Median water 4.96% n=248
Median |mass error| 2.5ppm n=212
Records carrying a flag 75.0% n=248
014284292.093.094.095.096.097.098.099.0100.092.00–92.25 %: 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=197.25–97.50 %: n=497.50–97.75 %: n=697.75–98.00 %: n=1298.00–98.25 %: n=2298.25–98.50 %: n=1798.50–98.75 %: n=1698.75–99.00 %: n=4899.00–99.25 %: n=3699.25–99.50 %: n=2599.50–99.75 %: n=2999.75–100.00 %: n=32median 98.98 Purity (% area) Reports
Figure 1. Purity distribution for all 248 HJ 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 HJ median, 98.98 %; 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 0.92pp n=32
Index median spread 0.95pp n=20
Lots tested 3+ times 32 n=51

Across the 32 HJ lots in the index with three or more independent assays, the median spread between the highest and lowest purity result on one lot is 0.92 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 +0.37pp n=51
Index median divergence +0.31pp n=20
Divergences in the supplier's favour 84% n=51
Divergences beyond 1 pp 8% n=51
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 98.77% n=43
Supplier-supplied median 99.10% n=193
Supplier-supplied share of records 77.8% n=248
97.097.598.098.699.199.6100.1Buyer-sourcedBuyer-sourced: Q1 98.13, median 98.77, Q3 99.00, n=43n=43Supplier-suppliedSupplier-supplied: Q1 98.74, median 99.10, Q3 99.57, n=193outlier 97.19outlier 97.46n=193Laboratory-retainedLaboratory-retained: Q1 98.08, median 98.36, Q3 98.89, n=12n=12 Purity (% area)
Figure 2. HJ 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 HJ 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 HJ batches in the index whose certificate carries that field, weighted as set out on the scoring rubric.

Documentation score 83/100 n=51
Index median score 79/100 n=20
Certificate fieldBatches carrying itRubric weight
Purity figure stated100%25 points
Analytical method stated (column, gradient, wavelength)67%25 points
Peptide content stated65%20 points
Endotoxin stated35%15 points
Named impurities rather than a total53%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 %
TirzepatideIncretin4898.4098.44-0.0497.0100
SemaglutideIncretin3799.0098.87+0.1397.0100
RetatrutideIncretin2398.8898.41+0.4796.5100
BPC-157Tissue-repair2199.7199.15+0.5698.0100
L-Glutathione (reduced)Short2099.0899.00+0.0898.595
GHRP-2Growth-hormone1799.2599.22+0.0399.071
AOD-9604Metabolic1598.7899.25-0.4798.093
IpamorelinGrowth-hormone1599.4799.48-0.0199.080
TB-500Tissue-repair1499.5699.47+0.0998.5100
SermorelinGrowth-hormone999.0898.94+0.1498.0100
PEG-MGFGrowth-hormone7 n=798.1497.92+0.2292.0100
IGF-1 LR3Growth-hormone6 n=697.8697.75+0.1195.0100
GHRP-6Growth-hormone5 n=599.6099.65-0.0599.080
SemaxNeuroactive4 n=499.1399.17-0.0498.5100
SelankNeuroactive3 n=399.1499.13+0.0199.067
ARA-290Tissue-repair1 n=1n<399.45—98.0100
EpitalonShort1 n=1n<398.63—99.00
GHK-CuTissue-repair1 n=1n<398.54—97.0100
MK-677 (Ibutamoren mesylate)Non-peptide1 n=1n<399.37—98.5100

Full per-compound breakdown with distributions and caveats →

97.097.598.098.699.199.6100.1TirzepatideTirzepatide: Q1 98.11, median 98.40, Q3 98.81, n=48outlier 99.93n=48SemaglutideSemaglutide: Q1 98.55, median 99.00, Q3 99.45, n=37n=37RetatrutideRetatrutide: Q1 98.38, median 98.88, Q3 99.14, n=23n=23BPC-157BPC-157: Q1 99.20, median 99.71, Q3 99.93, n=21n=21L-Glutathione (reduce…L-Glutathione (reduce…: Q1 98.87, median 99.08, Q3 99.35, n=20outlier 97.63n=20GHRP-2GHRP-2: Q1 98.98, median 99.25, Q3 99.59, n=17n=17AOD-9604AOD-9604: Q1 98.37, median 98.78, Q3 98.94, n=15n=15IpamorelinIpamorelin: Q1 99.05, median 99.47, Q3 99.72, n=15n=15TB-500TB-500: Q1 99.30, median 99.56, Q3 99.77, n=14n=14SermorelinSermorelin: Q1 98.93, median 99.08, Q3 99.21, n=9outlier 98.37n=9PEG-MGFPEG-MGF: Q1 97.80, median 98.14, Q3 98.25, n=7n=7IGF-1 LR3IGF-1 LR3: Q1 97.54, median 97.86, Q3 97.94, n=6n=6GHRP-6GHRP-6: Q1 99.53, median 99.60, Q3 99.71, n=5outlier 98.79n=5SemaxSemax: Q1 99.06, median 99.13, Q3 99.19, n=4n=4 Purity (% area)
Figure 3. HJ purity by compound, for the 14 compounds with at least four HJ 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-Q11898.9198.49–99.598
2024-Q21499.4599.18–99.934
2024-Q311n<3—0
2024-Q421199.3697.79–99.937
2025-Q195798.9797.34–99.9347
2025-Q251898.7797.40–99.4617
2025-Q394999.2097.19–99.9329
2025-Q441998.9997.63–99.436
2026-Q161898.7697.79–99.9316
2026-Q2105098.9197.85–99.9339
2026-Q331399.2798.79–99.9313

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
Janoshik11199.02+0.0099.02
PeptideMeter3698.97-0.0599.02
Medutest3298.98+0.0898.91
VendorInvestigate3198.53-0.1198.64
Nordanalyt1798.91+0.0298.89
Kestrel2199.36+0.2499.12

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.

98.0/ 100769 ratings across the index network
s.agyeman99/100

Fifth order from them, all selank 10 mg. Sent one vial from each to PeptideMeter and the whole set landed inside half a point of each other. That flatness is exactly what I pay for.

g.halvorsen99/100

Asked a genuinely technical question about pre-dispatch storage and got a reply with numbers in it, inside 8 hours.

o.silva99/100

Quoted 4 days, arrived in 4. Tracking updated at every hop from dispatch to door.

l.ostergaard99/100

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

r.vermeulen99/100

Ordered on a Monday from their warehouse in the Netherlands and it was here by day 5. That is the whole case for regional stock.

am.weiss99/100

Costed them per mg against three other suppliers on the same KPV 10 mg spec. Competitive on price and clearly ahead on documentation.

re.sobczak99/100

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

i.vestergaard99/100

Submitted the BPC-157 10 mg to Medutest blind, without telling them the source. 98.7% against a stated 98.6%. The number holds up when nobody knows whose vial it is.

e.nwosu95/100

Good communication throughout, accurate lead time, and the parcel arrived on day 2.

ca.nyberg99/100

Every certificate I have from them is lot-specific. Not one batch-level document in 8 orders.

is.beaulieu95/100

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

g.kjaer95/100

Domestic dispatch from their stock in Canada. Straightforward, day 4, exactly as quoted.

f.vukovic99/100

7 lots logged now, purity 98.1 to 98.6%. A band that tight is worth more to me than one spectacular number.

mi.ibarra95/100

Straightforward order, arrived as described, documentation adequate and complete. Nothing to add, which is the point.

g.nilsen99/100

Certificate claimed 98.4% on lot HJ-24-252. PeptideMeter came back 98.6%. On an independent column that is as close to agreement as this gets.

z.lindqvist95/100

Ordered BPC-157 10 mg twice. Both vials reconstituted cleanly and both matched their certificates.

f.stanescu95/100

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

re.nilsen99/100

Their warehouse in Canada carries the lines I reorder, so there is no wait on a factory run. Day 4 every time.

i.falk99/100

Their raw material tested 98.8% against a reseller vial of nominally the same compound at 98.6%. Going direct is the whole argument.

i.ndiaye95/100

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

a.bhattacharya99/100

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

sa.demir99/100

Their warehouse in the United States had the ipamorelin 5 mg in stock and it shipped the same afternoon. Tracking never left the country.

y.bakken99/100

Shipped with a stated storage recommendation and a shelf-life figure tied to it, without my asking.

ka.salinas99/100

Reconstituted the PT-141 10 mg and it went clear on contact — no haze, no floaters, no long swirl. Tells you the lyophilisation was done properly.

ke.dahlberg95/100

Everything about the order was routine in the best sense — quoted 4 days, arrived in 3.

na.ramos99/100

Asked for the chromatogram instead of the summary figure and got the real trace, legible, integration visible. They send it without hesitating.

Block 12

Most recent records

The 25 most recently submitted HJ records. All 248 are listed on the full record listing.
ReportCompoundLotLabQuarterPurity %Water %Recovery %ProvenanceFlagsResult
AX-2026-042368SemaxHJ-2603-V4363Nordanalyt2026-Q399.177.26106.3Supplier-supplied1MARGINAL
AX-2026-042347SemaglutideHJ-2608-C3931VendorInvestigate2026-Q398.803.41100.2Buyer-sourced1MARGINAL
AX-2026-042367SemaxHJ-2603-V4363Kestrel2026-Q399.106.7893.9Supplier-supplied1MARGINAL
AX-2026-042348SemaglutideHJ-2608-C3931Nordanalyt2026-Q399.524.19—Supplier-supplied1MARGINAL
AX-2026-042290GHRP-6HJ-2603-R2258Janoshik2026-Q399.713.05—Supplier-supplied2MARGINAL
AX-2026-042287GHRP-6HJ-2603-R2258VendorInvestigate2026-Q398.792.4390.9Buyer-sourced2FAIL
AX-2026-042288GHRP-6HJ-2603-R2258Kestrel2026-Q399.932.8292.8Supplier-supplied2MARGINAL
AX-2026-042346SemaglutideHJ-2608-C3931VendorInvestigate2026-Q399.403.48—Buyer-sourced1MARGINAL
AX-2026-042289GHRP-6HJ-2603-R2258Janoshik2026-Q399.532.67104.7Supplier-supplied2MARGINAL
AX-2026-042370SemaxHJ-2603-V4363Janoshik2026-Q398.947.16104.0Supplier-supplied1MARGINAL
AX-2026-042291GHRP-6HJ-2603-R2258Janoshik2026-Q399.602.94101.3Supplier-supplied2MARGINAL
AX-2026-042349SemaglutideHJ-2608-C3931PeptideMeter2026-Q399.273.8396.6Supplier-supplied1MARGINAL
AX-2026-042369SemaxHJ-2603-V4363Janoshik2026-Q399.267.6795.0Supplier-supplied1MARGINAL
AX-2026-042344BPC-157HJ-2511-U3414Janoshik2026-Q299.184.92—Supplier-supplied2MARGINAL
AX-2026-042321TirzepatideHJ-2605-D3120VendorInvestigate2026-Q298.114.22—Buyer-sourced2MARGINAL
AX-2026-042361SermorelinHJ-2605-A4196Medutest2026-Q298.935.4389.8Supplier-supplied1MARGINAL
AX-2026-042350TB-500HJ-2511-L4170Medutest2026-Q299.712.9196.7Supplier-supplied1MARGINAL
AX-2026-042352TB-500HJ-2511-L4170Janoshik2026-Q299.932.64100.6Supplier-supplied1MARGINAL
AX-2026-042359SermorelinHJ-2605-A4196Kestrel2026-Q299.375.63—Supplier-supplied1MARGINAL
AX-2026-042323TirzepatideHJ-2605-D3120Janoshik2026-Q297.884.14—Laboratory-retained2MARGINAL
AX-2026-042302GHRP-2HJ-2602-W3148PeptideMeter2026-Q299.551.32104.9Supplier-supplied1MARGINAL
AX-2026-042337L-Glutathione (reduced)HJ-2511-F3082Janoshik2026-Q299.937.58—Supplier-supplied0PASS
AX-2026-042300AOD-9604HJ-2601-N2483Janoshik2026-Q298.775.32—Buyer-sourced1MARGINAL
AX-2026-042336L-Glutathione (reduced)HJ-2511-F3082Janoshik2026-Q299.937.34—Supplier-supplied0PASS
AX-2026-042297AOD-9604HJ-2601-N2483Medutest2026-Q299.004.7299.5Supplier-supplied1MARGINAL