v.balogun96/100
Their warehouse in Canada had the selank 10 mg in stock and it shipped the same afternoon. Tracking never left the country.
MKM — Xi'an Mokemei Biotechnology Co., Ltd.
Xi'an, CN · established 2016. The index holds 272 assay reports across 51 batches and 27 compounds, contributed by 6 laboratories. Every figure below is computed from those records and from nothing else.
Where MKM sells
Xi'an Mokemei 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 MKM at mokemeibiotechnology.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
- Xi'an Mokemei Biotechnology Co., Ltd.
- Short code in this index
- MKM
- Also known as
- MKM · MKM Biotech · Xi'an Mokemei Biotechnology
- City
- Xi'an
- Region
- Xi'an
- Country
- CN
- Established
- 2016
- First record in index
- 12 Apr 2024
- Most recent record
- 29 Aug 2026
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
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
98.87%
n=272
Interquartile range
1.01pp
n=272
10th percentile
97.93%
n=272
Pass rate vs index spec
86.8%
n=272
Median recovery vs claim
98.4%
n=159
Median water
5.00%
n=272
Median |mass error|
2.4ppm
n=222
Records carrying a flag
74.6%
n=272
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
1.03pp
n=34
Index median spread
0.95pp
n=20
Lots tested 3+ times
34
n=51
Across the 34 MKM lots in the index with three or more independent assays, the median spread between the highest and lowest purity result on one lot is 1.03 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
+0.32pp
n=51
Index median divergence
+0.31pp
n=20
Divergences in the supplier's favour
82%
n=51
Divergences beyond 1 pp
0%
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
98.43%
n=38
Supplier-supplied median
98.96%
n=224
Supplier-supplied share of records
82.4%
n=272
Block 6
Documentation completeness
The score is not an opinion about paperwork. Each component is the share of MKM batches in the index whose certificate carries that field, weighted as set out on the scoring rubric.
Documentation score
78/100
n=51
Index median score
79/100
n=20
| Certificate field | Batches carrying it | Rubric weight | |
|---|---|---|---|
| Purity figure stated | 100% | 25 points | |
| Analytical method stated (column, gradient, wavelength) | 73% | 25 points | |
| Peptide content stated | 63% | 20 points | |
| Endotoxin stated | 27% | 15 points | |
| Named impurities rather than a total | 42% | 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.
| Compound | Class | Reports | Median % | Index median % | Δ (pp) | Index spec | Pass % |
|---|---|---|---|---|---|---|---|
| Semaglutide | Incretin | 39 | 98.61 | 98.87 | -0.26 | 97.0 | 100 |
| BPC-157 | Tissue-repair | 28 | 98.97 | 99.15 | -0.18 | 98.0 | 100 |
| PT-141 (Bremelanotide) | Melanocortin-receptor | 24 | 99.59 | 99.31 | +0.27 | 98.5 | 71 |
| 5-Amino-1MQ | Non-peptide | 21 | 99.29 | 99.24 | +0.05 | 98.0 | 100 |
| CJC-1295 with DAC | Growth-hormone | 13 | 98.73 | 98.79 | -0.06 | 97.5 | 100 |
| Tirzepatide | Incretin | 11 | 97.72 | 98.44 | -0.72 | 97.0 | 100 |
| Semax | Neuroactive | 11 | 98.61 | 99.17 | -0.56 | 98.5 | 73 |
| TB-500 | Tissue-repair | 11 | 99.59 | 99.47 | +0.12 | 98.5 | 100 |
| Pramlintide | Incretin | 11 | 98.90 | 98.84 | +0.06 | 97.5 | 100 |
| Gonadorelin | Hypothalamic | 10 | 99.75 | 99.28 | +0.47 | 98.5 | 100 |
| Liraglutide | Incretin | 10 | 98.20 | 99.02 | -0.81 | 97.5 | 100 |
| KPV | Tissue-repair | 9 | 99.85 | 99.21 | +0.64 | 99.0 | 100 |
| CJC-1295 (no DAC) | Growth-hormone | 8 | 98.36 | 98.61 | -0.25 | 98.0 | 50 |
| GHRP-2 | Growth-hormone | 8 | 99.04 | 99.22 | -0.18 | 99.0 | 63 |
| Ipamorelin | Growth-hormone | 8 | 98.82 | 99.48 | -0.66 | 99.0 | 38 |
| Survodutide | Incretin | 8 | 97.90 | 98.69 | -0.78 | 96.5 | 100 |
| AOD-9604 | Metabolic | 8 | 98.95 | 99.25 | -0.30 | 98.0 | 75 |
| Enclomiphene citrate | Non-peptide | 8 | 98.03 | 99.23 | -1.20 | 98.5 | 0 |
| Melanotan II | Melanocortin-receptor | 7 n=7 | 98.66 | 99.24 | -0.58 | 98.5 | 71 |
| L-Glutathione (reduced) | Short | 4 n=4 | 98.58 | 99.00 | -0.42 | 98.5 | 75 |
| Adipotide | Metabolic | 3 n=3 | 97.92 | 98.59 | -0.67 | 96.0 | 100 |
| MK-677 (Ibutamoren mesylate) | Non-peptide | 3 n=3 | 98.76 | 99.37 | -0.61 | 98.5 | 67 |
| MGF | Growth-hormone | 3 n=3 | 98.30 | 98.73 | -0.43 | 97.5 | 100 |
| Retatrutide | Incretin | 3 n=3 | 98.36 | 98.41 | -0.05 | 96.5 | 100 |
| Mazdutide | Incretin | 1 n=1 | n<3 | 98.11 | — | 96.5 | 100 |
| Selank | Neuroactive | 1 n=1 | n<3 | 99.13 | — | 99.0 | 100 |
| IGF-1 LR3 | Growth-hormone | 1 n=1 | n<3 | 97.75 | — | 95.0 | 100 |
Full per-compound breakdown with distributions and caveats →
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.
| Quarter | Batches | Reports | Median purity | Range | Flagged |
|---|---|---|---|---|---|
| 2024-Q1 | 0 | 0 | n<3 | — | 0 |
| 2024-Q2 | 2 | 19 | 99.29 | 98.18–99.93 | 17 |
| 2024-Q3 | 5 | 42 | 99.11 | 97.82–99.93 | 9 |
| 2024-Q4 | 2 | 7 | 99.57 | 98.44–99.93 | 5 |
| 2025-Q1 | 2 | 17 | 98.26 | 97.48–99.34 | 15 |
| 2025-Q2 | 7 | 41 | 98.40 | 97.14–99.93 | 29 |
| 2025-Q3 | 8 | 43 | 98.85 | 97.54–99.93 | 35 |
| 2025-Q4 | 7 | 43 | 98.92 | 97.64–99.93 | 42 |
| 2026-Q1 | 6 | 22 | 98.91 | 98.05–99.93 | 20 |
| 2026-Q2 | 10 | 35 | 98.61 | 97.36–99.93 | 28 |
| 2026-Q3 | 2 | 3 | 97.92 | 97.04–99.28 | 3 |
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.
| Laboratory | Reports | Median purity | Lab bias (pp) | Bias-adjusted |
|---|---|---|---|---|
| Janoshik | 135 | 98.86 | +0.00 | 98.86 |
| PeptideMeter | 42 | 98.86 | -0.05 | 98.91 |
| Medutest | 37 | 99.05 | +0.08 | 98.97 |
| VendorInvestigate | 22 | 98.42 | -0.11 | 98.53 |
| Nordanalyt | 22 | 98.62 | +0.02 | 98.60 |
| Kestrel | 14 | 99.35 | +0.24 | 99.11 |
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.
95.0/ 100765 ratings across the index network
ar.iyer96/100
Vial labels printed rather than handwritten, lot and date legible, cap seal intact on every unit.
h.rasmussen92/100
Straightforward order, arrived as described, documentation adequate and complete. Nothing to add, which is the point.
ar.amankwah92/100
Held locally in Canada, so the semax 10 mg arrived on day 5 without an import step.
v.palacios96/100
Their raw material tested 99.1% against a reseller vial of nominally the same compound at 99.0%. Going direct is the whole argument.
d.aalto92/100
Everything about the order was routine in the best sense — quoted 3 days, arrived in 2.
a.girard96/100
Dispatched from their warehouse in Germany rather than from the factory, so the tesamorelin 2 mg was with me on day 3.
m.rahimi96/100
The certificate for lot MKM-25-315 carried method, wavelength, water content and an itemised related-substances table. Complete on the first pass.
s.haddad96/100
Arrived on day 5 against a quoted 5. Customs paperwork was right first time, which is why it moved that fast.
ha.varga92/100
Documentation is complete and the numbers are steady. A dependable choice for routine work.
so.diallo96/100
No customs paperwork, no import wait — it came from their stock in the United Kingdom and arrived day 3.
mi.duarte96/100
Every certificate I have from them is lot-specific. Not one batch-level document in 5 orders.
z.amankwah96/100
Quoted 5 days, arrived in 5. Tracking updated at every hop from dispatch to door.
e.weiss96/100
VendorInvestigate has now seen 7 of their lots through me. Not one has come back outside spec.
a.marchand96/100
They report purity by RP-HPLC with the wavelength stated and peptide content separately. Two different numbers, correctly separated.
h.norgaard96/100
Pleased to find they hold stock in the United States. Domestic dispatch, day 4, no customs step at all.
br.coelho96/100
Fifth order from them, all TB-500 5 mg. Sent one vial from each to Janoshik and the whole set landed inside half a point of each other. That flatness is exactly what I pay for.
ad.marchand92/100
Good communication throughout, accurate lead time, and the parcel arrived on day 3.
k.duarte96/100
Certificate claimed 99.2% on lot MKM-25-975. PeptideMeter came back 99.6%. On an independent column that is as close to agreement as this gets.
j.sjoberg92/100
Fair pricing for the documentation standard, and delivery landed on day 3 as quoted.
v.norgaard96/100
Lot code on the vial matched the lot code on the certificate exactly. Sounds basic; it is the single best predictor of everything else.
b.falk96/100
Cold pack was still hard on arrival in Melbourne on day 2. My logger never went above 7°C across the whole run.
b.espinoza92/100
Consistent rather than flashy. Everything lands in the high nineties, and it lands there every time.
s.aguirre96/100
Support answered on a Sunday, correctly, with the batch record attached. That is well beyond what I expected.
ni.zielinski96/100
Same lot documentation as the factory ships, but out of their warehouse in the United Kingdom, so it landed on day 2.
ma.agyeman92/100
Shipped from their warehouse in Germany, arrived day 2, documentation complete.
Block 12