AssayIndex
Supplier scorecard

SWB — Shanghai Wibson Biotechnology Co., Ltd.

Shanghai, CN · established 2019. The index holds 317 assay reports across 50 batches and 27 compounds, contributed by 6 laboratories. Every figure below is computed from those records and from nothing else.

317 reports50 batchesmedian purity 98.96 %documentation 80/100

Where SWB sells

Shanghai Wibson 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 SWB at shanghaiwibsonbiotechnology.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
Shanghai Wibson Biotechnology Co., Ltd.
Short code in this index
SWB
Also known as
SWB · SWB Biotech · Shanghai Wibson Biotechnology
City
Shanghai
Region
Shanghai
Country
CN
Established
2019
First record in index
02 May 2024
Most recent record
13 Oct 2026
/* >>> warehouse block >>> */
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
/* <<< warehouse block <<< */
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 98.96% n=317
Interquartile range 0.96pp n=317
10th percentile 97.83% n=317
Pass rate vs index spec 96.2% n=317
Median recovery vs claim 97.8% n=185
Median water 4.85% n=317
Median |mass error| 2.5ppm n=270
Records carrying a flag 70.7% n=317
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=196.25–96.50 %: n=096.50–96.75 %: n=396.75–97.00 %: n=397.00–97.25 %: n=697.25–97.50 %: n=597.50–97.75 %: n=1197.75–98.00 %: n=1498.00–98.25 %: n=1698.25–98.50 %: n=2798.50–98.75 %: n=4598.75–99.00 %: n=3199.00–99.25 %: n=4999.25–99.50 %: n=3799.50–99.75 %: n=3199.75–100.00 %: n=38median 98.96 Purity (% area) Reports
Figure 1. Purity distribution for all 317 SWB 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 SWB median, 98.96 %; 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 1.10pp n=40
Index median spread 0.95pp n=20
Lots tested 3+ times 40 n=50

Across the 40 SWB lots in the index with three or more independent assays, the median spread between the highest and lowest purity result on one lot is 1.10 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 +0.34pp n=50
Index median divergence +0.31pp n=20
Divergences in the supplier's favour 84% n=50
Divergences beyond 1 pp 2% 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 98.69% n=50
Supplier-supplied median 99.08% n=247
Supplier-supplied share of records 77.9% n=317
95.896.597.298.098.799.5100.2Buyer-sourcedBuyer-sourced: Q1 97.78, median 98.69, Q3 99.09, n=50n=50Supplier-suppliedSupplier-supplied: Q1 98.55, median 99.08, Q3 99.52, n=247outlier 96.61outlier 96.83outlier 96.90outlier 96.95outlier 97.00n=247Laboratory-retainedLaboratory-retained: Q1 97.95, median 98.55, Q3 99.16, n=20n=20 Purity (% area)
Figure 2. SWB 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 SWB 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 SWB batches in the index whose certificate carries that field, weighted as set out on the scoring rubric.

Documentation score 80/100 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)78%25 points
Peptide content stated72%20 points
Endotoxin stated36%15 points
Named impurities rather than a total46%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 %
SemaglutideIncretin4798.6698.87-0.2197.0100
Melanotan IIMelanocortin-receptor3899.4699.24+0.2298.597
RetatrutideIncretin2298.4898.41+0.0896.5100
BPC-157Tissue-repair2199.3699.15+0.2198.0100
TirzepatideIncretin1698.6398.44+0.1997.088
IGF-1 LR3Growth-hormone1597.1397.75-0.6295.0100
IGF-1 DES (1-3)Growth-hormone1497.9498.53-0.5995.0100
NAD+Non-peptide1298.9798.88+0.0997.0100
MGFGrowth-hormone1298.4198.73-0.3297.5100
SelankNeuroactive1299.1599.13+0.0199.075
5-Amino-1MQNon-peptide1299.2899.24+0.0498.0100
IpamorelinGrowth-hormone1299.8599.48+0.3799.0100
Kisspeptin-10Melanocortin-receptor1098.5699.27-0.7098.560
L-Glutathione (reduced)Short1098.7899.00-0.2198.590
Thymosin α1Tissue-repair999.3099.11+0.1997.5100
AOD-9604Metabolic999.1499.25-0.1198.0100
MazdutideIncretin898.2798.11+0.1696.5100
N-Acetyl Semax AmideNeuroactive7 n=799.5099.26+0.2498.5100
PT-141 (Bremelanotide)Melanocortin-receptor7 n=799.1099.31-0.2298.5100
CJC-1295 with DACGrowth-hormone5 n=598.5698.79-0.2397.5100
GonadorelinHypothalamic5 n=598.6299.28-0.6698.580
P21Neuroactive4 n=499.1999.190.0098.0100
MK-677 (Ibutamoren mesylate)Non-peptide3 n=399.3299.37-0.0598.5100
ExenatideIncretin2 n=2n<398.94—98.0100
CJC-1295 (no DAC)Growth-hormone2 n=2n<398.61—98.0100
Enclomiphene citrateNon-peptide2 n=2n<399.23—98.5100
CagrilintideIncretin1 n=1n<398.59—96.5100

Full per-compound breakdown with distributions and caveats →

95.896.597.298.098.799.5100.2SemaglutideSemaglutide: Q1 98.22, median 98.66, Q3 99.32, n=47n=47Melanotan IIMelanotan II: Q1 99.18, median 99.46, Q3 99.80, n=38outlier 98.25n=38RetatrutideRetatrutide: Q1 98.17, median 98.48, Q3 99.00, n=22n=22BPC-157BPC-157: Q1 98.73, median 99.36, Q3 99.71, n=21n=21TirzepatideTirzepatide: Q1 97.75, median 98.63, Q3 99.27, n=16n=16IGF-1 LR3IGF-1 LR3: Q1 96.93, median 97.13, Q3 97.35, n=15outlier 96.06outlier 98.19outlier 98.31outlier 98.43n=15IGF-1 DES (1-3)IGF-1 DES (1-3): Q1 97.73, median 97.94, Q3 98.23, n=14n=14NAD+NAD+: Q1 98.79, median 98.97, Q3 99.18, n=12n=12MGFMGF: Q1 98.36, median 98.41, Q3 98.89, n=12n=12SelankSelank: Q1 99.07, median 99.15, Q3 99.35, n=12outlier 99.93n=125-Amino-1MQ5-Amino-1MQ: Q1 99.06, median 99.28, Q3 99.60, n=12n=12IpamorelinIpamorelin: Q1 99.47, median 99.85, Q3 99.91, n=12n=12Kisspeptin-10Kisspeptin-10: Q1 98.38, median 98.56, Q3 98.94, n=10n=10L-Glutathione (reduce…L-Glutathione (reduce…: Q1 98.70, median 98.78, Q3 98.94, n=10outlier 98.18outlier 99.79n=10 Purity (% area)
Figure 3. SWB purity by compound, for the 14 compounds with at least four SWB 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-Q100n<3—0
2024-Q221198.8496.55–99.354
2024-Q331699.0698.52–99.909
2024-Q42698.7297.95–99.726
2025-Q142799.1797.50–99.9318
2025-Q284599.3697.60–99.9333
2025-Q352499.3098.77–99.939
2025-Q476198.5896.06–99.9338
2026-Q186399.0397.07–99.9347
2026-Q262698.3297.54–99.6125
2026-Q353898.9397.97–99.9335

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
Janoshik14898.96+0.0098.96
PeptideMeter3998.79-0.0598.84
Medutest5799.14+0.0899.06
VendorInvestigate2598.44-0.1198.55
Nordanalyt2999.08+0.0299.06
Kestrel1999.46+0.2499.22

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.

97.0/ 1001,038 ratings across the index network
a.okonkwo94/100

Shipped from their warehouse in Germany, arrived day 5, documentation complete.

h.vermeulen98/100

Arrived on day 2 against a quoted 3. Customs paperwork was right first time, which is why it moved that fast.

ai.krastev94/100

Documentation is complete and the numbers are steady. A dependable choice for routine work.

a.pires98/100

Queried the related-substances total on lot SWB-26-175; they came back with method, column and detection limit. That depth is rare.

o.kirchner98/100

The tirzepatide 10 mg arrived on day 3 with the cold pack intact and the seal unbroken. Straightforward, exactly as described.

k.mensa98/100

Custom synthesis quote came back with a realistic timeline and they beat it. Purity on delivery matched the signed spec.

n.solberg94/100

Steady supplier. Medutest results have agreed with their stated figures on every lot I have submitted.

am.hartmann98/100

Medutest has now seen 6 of their lots through me. Not one has come back outside spec.

a.sandvik94/100

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

r.kjaer98/100

No customs paperwork, no import wait — it came from their stock in the United States and arrived day 3.

b.baptista98/100

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

k.weiss98/100

4 lots logged now, purity 98.8 to 99.0%. A band that tight is worth more to me than one spectacular number.

b.bruun98/100

Lot code on the vial matched the lot code on the certificate exactly. Sounds basic; it is the single best predictor of everything else.

ca.lindholm94/100

Solid on the retatrutide 5 mg. Purity where it should be, transit 4 days, paperwork in order.

al.villalobos94/100

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

a.kaufmann98/100

First order, deliberately small, IGF-1 LR3 1 mg only. Documentation, transit and a Janoshik result at 99.4% all checked out, so the next one will not be small.

r.nilsen98/100

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

d.roos94/100

Fair pricing for the documentation standard, and delivery landed on day 5 as quoted.

f.sorensen98/100

Asked a genuinely technical question about pre-dispatch storage and got a reply with numbers in it, inside 6 hours.

k.vermeulen98/100

Same lot documentation as the factory ships, but out of their warehouse in the United Kingdom, so it landed on day 5.

in.boateng98/100

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

b.lundgren94/100

Ordered semax 10 mg twice. Both vials reconstituted cleanly and both matched their certificates.

fr.villalobos98/100

Certificate claimed 98.2% on lot SWB-25-303. Medutest came back 98.4%. On an independent column that is as close to agreement as this gets.

o.pereira98/100

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

a.halonen98/100

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

i.nwosu98/100

Asked them to hold an order until I confirmed a lot number and they did, without fuss and without a restocking charge.

Block 12

Most recent records

The 25 most recently submitted SWB records. All 317 are listed on the full record listing.
ReportCompoundLotLabQuarterPurity %Water %Recovery %ProvenanceFlagsResult
AX-2026-042461Kisspeptin-10SWB-2603-D6238Janoshik2026-Q398.354.6596.5Supplier-supplied3FAIL
AX-2026-042479Melanotan IISWB-2603-A5707Janoshik2026-Q399.163.6794.5Supplier-supplied1MARGINAL
AX-2026-042481Melanotan IISWB-2603-A5707Medutest2026-Q398.953.3790.8Supplier-supplied1MARGINAL
AX-2026-042460Kisspeptin-10SWB-2603-D6238Kestrel2026-Q399.554.2190.8Supplier-supplied3MARGINAL
AX-2026-042483Melanotan IISWB-2603-A5707Janoshik2026-Q399.383.73107.2Supplier-supplied1MARGINAL
AX-2026-042398SemaglutideSWB-2602-X5278Nordanalyt2026-Q399.084.48—Supplier-supplied1MARGINAL
AX-2026-042399SemaglutideSWB-2602-X5278Janoshik2026-Q398.563.82—Supplier-supplied1MARGINAL
AX-2026-042499BPC-157SWB-2607-Y5787Kestrel2026-Q399.934.2594.4Supplier-supplied0PASS
AX-2026-042388SemaglutideSWB-2602-X5278Nordanalyt2026-Q398.093.90—Supplier-supplied1MARGINAL
AX-2026-042458Kisspeptin-10SWB-2603-D6238Kestrel2026-Q398.514.71102.4Supplier-supplied3MARGINAL
AX-2026-042463Kisspeptin-10SWB-2603-D6238Nordanalyt2026-Q398.354.9398.6Supplier-supplied3FAIL
AX-2026-042478Melanotan IISWB-2603-A5707VendorInvestigate2026-Q398.734.34—Buyer-sourced1MARGINAL
AX-2026-042482Melanotan IISWB-2603-A5707Janoshik2026-Q399.224.66—Supplier-supplied1MARGINAL
AX-2026-042465Kisspeptin-10SWB-2603-D6238Kestrel2026-Q399.034.8396.4Supplier-supplied3MARGINAL
AX-2026-042462Kisspeptin-10SWB-2603-D6238Janoshik2026-Q398.614.7396.5Supplier-supplied3MARGINAL
AX-2026-042392SemaglutideSWB-2602-X5278Janoshik2026-Q398.663.47—Supplier-supplied1MARGINAL
AX-2026-042389SemaglutideSWB-2602-X5278Medutest2026-Q398.214.4799.8Supplier-supplied2FAIL
AX-2026-042396SemaglutideSWB-2602-X5278Medutest2026-Q399.013.7999.7Supplier-supplied1MARGINAL
AX-2026-042387SemaglutideSWB-2602-X5278Medutest2026-Q399.583.81—Supplier-supplied1MARGINAL
AX-2026-042394SemaglutideSWB-2602-X5278Janoshik2026-Q399.674.90—Supplier-supplied1MARGINAL
AX-2026-042390SemaglutideSWB-2602-X5278Medutest2026-Q399.154.43102.5Buyer-sourced2FAIL
AX-2026-042472Melanotan IISWB-2603-A5707Janoshik2026-Q399.554.28—Supplier-supplied0PASS
AX-2026-042475Melanotan IISWB-2603-A5707Janoshik2026-Q399.424.21105.7Supplier-supplied0PASS
AX-2026-042500ExenatideSWB-2603-D6146PeptideMeter2026-Q398.705.31—Supplier-supplied2MARGINAL
AX-2026-042395SemaglutideSWB-2602-X5278Janoshik2026-Q398.693.5789.3Supplier-supplied2MARGINAL