What the Somatropin record shows

Evidence through 2026-04-10

TitrateLab tracks 75 published Somatropin certificate-of-analysis source records through 2026-04-10, each with a recorded purity or measured-versus-label amount result. Across 75 records with a numeric peptide-purity result, including zero, the median reported purity is 96.6%. Across 9 records with measured-versus-label dose data, 44% are within 10% of the labeled quantity. This is a public convenience sample, not a randomized market survey; one result describes one submitted sample and does not verify other batches.

Published records with a non-null purity or measured-versus-label amount result. Matching uses a normalized compound slug. No deduplication in this archive summary; relays and corrected records can remain separate. Records with neither measurement are excluded here, but can appear in the research overview's exact-token raw-record total. These are not unique certificates or batches. TitrateLab indexes reports from third-party laboratories.

Aggregate calculated: 2026-09-24T16:22:57.263234+00:00. Calculation time is not a test date.

Published records75
Reported purity96.6% median · 75 results
Dose accuracy44% within ±10% · 9 results
EndotoxinNot reported
Evidence dates2018-04-14 to 2026-04-10
Limits and missing evidence
  • No classifiable endotoxin results were recorded.
  • Coverage depends on reports that were published and available to ingest.
Assay metrics

Somatropin lab-testing metrics

75
Certificates
96.6%
Median reported purity (zero included)
4%
Purity records ≥ 99%
0
Source records reporting zero purity
1
Testing labs
42
Vendors
Mean purity96.1% Below 90% purity1% Mean dose vs label+9.5% Underfilled0% Within 10% of label dose44% Overdosed ≥ +7%56% Underdosed ≤ −7%0%

COAs per testing lab

Every lab testing Somatropin in the corpus.

Janoshik 74 96.6% med

Tested-purity distribution

Bins below 90% tested purity (1% of numeric purity records).

Somatropin tested-purity distribution
Purity rangeCertificates
0–50%0
50–70%0
70–80%0
80–85%0
85–90%1
90–91%0
91–92%1
92–93%6
93–94%5
94–95%7
95–96%9
96–97%17
97–98%18
98–99%8
99–100%3

COAs over time

Somatropin source records by test month (discovery month when test date is absent).

Somatropin certificates per month
MonthCertificates
2018-041
2019-041
2019-091
2020-092
2020-101
2020-111
2021-032
2021-091
2021-113
2022-012
2022-031
2022-041
2022-082
2022-111
2023-011
2023-031
2023-041
2023-072
2023-086
2023-091
2023-101
2023-114
2024-012
2024-024
2024-031
2024-042
2024-052
2024-062
2024-072
2024-082
2024-092
2024-101
2024-121
2025-021
2025-034
2025-041
2025-052
2025-063
2025-081
2025-111
2025-121
2026-012
2026-041

Most-tested vendors

Top 10 of 15 vendors by Somatropin certificate count.

TitrateLab ProVendor names in this chart are hidden. Lab-report counts are free.Vendor namesOriginal COAsBatch detailsBuyer reviewsPrice and stock alertsSee vendor names with Pro
Vendor name available with ProExplore reports + 16

Lab evidence

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16 lab reports from this vendor

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Vendor name available with ProExplore reports + 5

Lab evidence

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5 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

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Vendor name available with ProExplore reports + 4

Lab evidence

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4 lab reports from this vendor

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Lab evidence

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2 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

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Lab evidence

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2 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

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Pro shows the vendor’s name, its original lab reports and batch details.

Vendor behind these reportsVendor name available with Pro
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See vendor names with Pro Names, original COAs and batch details

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Vendor name available with ProExplore reports + 2

Lab evidence

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2 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

TitrateLab Pro Which vendor is this?

Pro shows the vendor’s name, its original lab reports and batch details.

Vendor behind these reportsVendor name available with Pro
What Pro unlocks
  • Vendor names on every ranking and chart
  • Original COAs with batch details
  • Buyer reviews for each vendor
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See vendor names with Pro Names, original COAs and batch details

Monthly or lifetime plans. Monthly cancels anytime. Compare plans

Vendor name available with ProExplore reports + 2

Lab evidence

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2 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

TitrateLab Pro Which vendor is this?

Pro shows the vendor’s name, its original lab reports and batch details.

Vendor behind these reportsVendor name available with Pro
What Pro unlocks
  • Vendor names on every ranking and chart
  • Original COAs with batch details
  • Buyer reviews for each vendor
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See vendor names with Pro Names, original COAs and batch details

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Vendor name available with ProExplore reports + 2

Lab evidence

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Explore this vendor’s lab reports

Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.

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Vendor name available with ProExplore reports + 2

Lab evidence

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2 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

TitrateLab Pro Which vendor is this?

Pro shows the vendor’s name, its original lab reports and batch details.

Vendor behind these reportsVendor name available with Pro
What Pro unlocks
  • Vendor names on every ranking and chart
  • Original COAs with batch details
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See vendor names with Pro Names, original COAs and batch details

Monthly or lifetime plans. Monthly cancels anytime. Compare plans

Vendor name available with ProExplore reports + 2

Lab evidence

Free preview

2 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

TitrateLab Pro Which vendor is this?

Pro shows the vendor’s name, its original lab reports and batch details.

Vendor behind these reportsVendor name available with Pro
What Pro unlocks
  • Vendor names on every ranking and chart
  • Original COAs with batch details
  • Buyer reviews for each vendor
  • Price and stock alerts for your watchlist
  • Ask Titer, the AI research assistant
See vendor names with Pro Names, original COAs and batch details

Monthly or lifetime plans. Monthly cancels anytime. Compare plans

+ 5 more vendors with fewer certificates.

Published Somatropin certificates of analysis

75 records. Zero guesswork.

Unlock the actual vendor, purity, dose accuracy, lab, batch and saved certificate for every Somatropin result.

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Illustrative structure only. No record-level values are present in this preview.

More COA results by compound