What the Ara 290 record shows

Evidence through 2026-11-07

TitrateLab tracks 578 published Ara 290 certificate-of-analysis source records through 2026-11-07, each with a recorded purity or measured-versus-label amount result. Across 578 records with a numeric peptide-purity result, including zero, the median reported purity is 99.5%. Across 494 records with measured-versus-label dose data, 46% 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: 2026-11-13T13:09:15.617983+00:00. Calculation time is not a test date.

Published records578
Reported purity99.5% median · 578 results
Dose accuracy46% within ±10% · 494 results
Endotoxin100% pass · 80 determinate results
Evidence dates2022-07-28 to 2026-11-07
Limits and missing evidence
  • The testing laboratory is unattributed on 6 records.
  • Coverage depends on reports that were published and available to ingest.

Ara 290 lab-testing metrics

578
Certificates
99.5%
Median reported purity (zero included)
97%
Purity records ≥ 99%
0
Source records reporting zero purity
7
Testing labs
271
Vendors
Mean purity99.1% Below 90% purity1% Mean dose vs label+12.0% Underfilled3% Endotoxin pass100% Within 10% of label dose46% Overdosed ≥ +7%61% Underdosed ≤ −7%4%

COAs per testing lab

Every lab testing Ara 290 in the corpus.

Freedom Diagnostics 507 99.5% med
Janoshik 48 99.6% med
Chromate 9 99% med
Unattributed / lab unknown 6 99.7% med
ILS Laboratories 5 99.4% med
Finnrick (Lab G) 1 99.5% med
KMD Analytical 1 99.4% med
Vanguard Laboratory 1 99% med

Tested-purity distribution

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

Ara 290 tested-purity distribution
Purity rangeCertificates
0–50%2
50–70%1
70–80%0
80–85%0
85–90%5
90–91%0
91–92%0
92–93%0
93–94%0
94–95%0
95–96%0
96–97%2
97–98%0
98–99%9
99–100%559

COAs over time

Ara 290 source records by test month (discovery month when test date is absent).

Ara 290 certificates per month
MonthCertificates
2022-071
2024-071
2024-092
2025-011
2025-032
2025-041
2025-052
2025-062
2025-074
2025-084
2025-094
2025-106
2025-1116
2025-1232
2026-0120
2026-0226
2026-0320
2026-0428
2026-0523
2026-0636
2026-0761
2026-08104
2026-09101
2026-1072
2026-119

Most-tested vendors

Top 10 of 15 vendors by Ara 290 certificate count.

TitrateLab ProVendor names in this chart are hidden. Lab-report counts stay public.Vendor namesOriginal COAsBatch detailsBuyer reviewsPrice and stock alertsSee vendor names with Pro
Vendor name available with ProExplore reports + 19

Lab evidence

Free preview

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.

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
Vendor name available with ProExplore reports + 10

Lab evidence

Free preview

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.

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
Vendor name available with ProExplore reports + 5

Lab evidence

Free preview

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.

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
Vendor name available with ProExplore reports + 5

Lab evidence

Free preview

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.

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
Vendor name available with ProExplore reports + 5

Lab evidence

Free preview

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.

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
Vendor name available with ProExplore reports + 5

Lab evidence

Free preview

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.

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
Vendor name available with ProExplore reports + 4

Lab evidence

Free preview

4 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
Vendor name available with ProExplore reports + 4

Lab evidence

Free preview

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.

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
Vendor name available with ProExplore reports + 4

Lab evidence

Free preview

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.

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
Vendor name available with ProExplore reports + 4

Lab evidence

Free preview

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.

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

+ 5 more vendors with fewer certificates.

Published Ara 290 certificates of analysis

Open all 578 Ara 290 reports.

Unlock the actual vendor, purity, dose accuracy, lab, batch and saved certificate for every Ara 290 result.

Unlock Ara 290 reports

Pro · $14/month or $88/year

Already have Pro? Sign in

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

Reading Ara 290 lab reports

A valid report describes the sample that was submitted, not every vial sold under the same name. Guide: How to verify and read a peptide COA: 5 checks.

More COA results by compound