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PT-141 — 10 mg
Product analysis · Owsa Labs

PT-141 — 10 mg

10 mg per vial of PT-141 — 10 mg, sold by Owsa Labs. An analytical report is on file from Janoshik Analytical, showing 99.861% purity. For laboratory research use only.

Why this score?
Testing & analytical evidence
39/45
Value
18/25
Product identity
11/15
Supplier transparency
3/10
Label & listing transparency
5/5
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Testing transparency: 39/45
£29.99Owsa Labs
10 mgVial size
1Vials per pack
£29.99Price / vial
£3.00Price / mg
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We may earn a commission from qualifying purchases. This never affects our scores. Research-use product only - not for human or veterinary use.

The score, explained

Our scoring methodology
Testing & analytical evidence87/100
39 of 45 points
Value72/100
18 of 25 points
Product identity73/100
11 of 15 points
Supplier transparency25/100
2.5 of 10 points
Label & listing transparency100/100
5 of 5 points

Overall: 75.5/100 - Good. The score compares the documentation and characteristics of this research product - not whether a peptide is safe, effective or suitable for human use. Affiliate commission contributes no points.

Testing & evidence

Verified independent evidence

Evidence status
Verified independent evidence
Manufacturer statement
"Certificate of analysis on every product"; product page says "Third-party tested" and "No independent COA has been published for this lot yet. We list published peptide reports on the Certificates of Analysis page."; certificates page lists PT-141 — 10 mg with Janoshik Analytical and batch P41/202602.
Laboratory
Janoshik Analytical
Certification body
Not recorded
Batch
P41/202602
Batch-specific report
Recorded
Report date
2026-02-16
Evidence checked
2026-09-22
Purity (HPLC)
99.861%
Chromatogram
Not shown
Identity / mass spectrometry
Not shown
Measured content
Within 9% of label
Lab verification
Can be verified with the laboratory
Microbiology / endotoxin
Not shown

An independent Janoshik COA was found for PT-141 10 mg, matching the listing batch P41/202602. It reports 10.84 mg and 99.861% purity, but no chromatogram was visible in the accessible report view and no micro/contaminant testing was reported.

Dose & value

Vial size
10 mg
Vials per pack
1 (single vial)
Pack price
£29.99
Price per vial
£29.99
Price per mg
£3.00
Compared with other suppliers
In line with the median (4 suppliers, same peptide)
Price last checked
22 Sep 2026

PT-141 product details

Compound
PT-141
Supplier product name
PT-141 — 10 mg
Supplier product code (SKU)
OWSA-PT141-10MG
CAS number
Not disclosed
Presentation
Vial
Storage
Not disclosed
Supplier purity claim
Not disclosed

Listing details describe the supplier's own product page; they do not independently verify the contents of any vial. Check the current listing and the batch covered by any test report.

Supplier transparency

Supplier
Owsa Labs
Legal company
Owsa Labs
Companies House verified
Not found
UK address disclosed
Not found
Contact details
Yes
Shipping policy
Yes
Returns policy
Yes
Batch / testing process explained
Yes

View the full supplier profile →

Compare all PT-141 suppliers →

What the record makes clear

  • An analytical report was located for this listing.
  • The report is for batch P41/202602 - confirm it matches the vial you receive.
  • Price per mg can be calculated from the labelled vial size.

What to keep in mind

  • Research use only. A score is not an endorsement, and does not mean a product is safe, sterile, effective or suitable for human or veterinary use.
  • One tested sample does not guarantee every vial is identical.

Explore the alternatives

Compare alternative

PT-141 10mgReta Research

Why this score?
Testing & analytical evidence
10/45
Value
18/25
Product identity
12/15
Supplier transparency
10/10
Label & listing transparency
5/5
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Quantity
10 mg / vial
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
Lyophilised powder, 10mg vial, ≥99% purity by HPLC, Certificate of Analysis on request. The COA page says every batch has independent lab paperwork confirming HPLC purity and mass-spectrometry identity, signed off by Janoshik Analytical.
Laboratory
Janoshik Analytical
Certification body
Not recorded
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-09-22
£3.00per mg
£30.00per pack
View AnalysisBuy Now
Product & testing details
Supplier
Reta Research
Vials per pack
1
Price per vial
£30.00
Listing last checked
2026-09-22 11:04:33
Evidence status
Testing claimed
Manufacturer statement
Lyophilised powder, 10mg vial, ≥99% purity by HPLC, Certificate of Analysis on request. The COA page says every batch has independent lab paperwork confirming HPLC purity and mass-spectrometry identity, signed off by Janoshik Analytical.
Laboratory
Janoshik Analytical
Certification body
Not recorded
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-09-22

PT-141 10mg

Reta Research
Why this score?
Testing & analytical evidence
10/45
Value
18/25
Product identity
12/15
Supplier transparency
10/10
Label & listing transparency
5/5
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
Lyophilised powder, 10mg vial, ≥99% purity by HPLC, Certificate of Analysis on request. The COA page says every batch has independent lab paperwork confirming HPLC purity and mass-spectrometry identity, signed off by Janoshik Analytical.
Laboratory
Janoshik Analytical
Certification body
Not recorded
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-09-22
£3.00per mg
£30.00per pack
View AnalysisBuy Now

Compare alternative

PT-141 10 mgUK Peptides (ukpeptides.com)

Why this score?
Testing & analytical evidence
10/45
Value
18/25
Product identity
11/15
Supplier transparency
3/10
Label & listing transparency
5/5
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Quantity
10 mg / vial
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
"99%+ HPLC purity · batch COA"; "Specifications for this compound, independently verified by HPLC and LC-MS before release."; "PURITY (HPLC) 99.4%"; "MASS CONFIRMATION LC-MS confirmed"; "Every batch tested. Independently verified."
Laboratory
Not recorded
Certification body
Not recorded
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-09-22
£3.00per mg
£29.99per pack
View AnalysisBuy Now
Product & testing details
Supplier
UK Peptides (ukpeptides.com)
Vials per pack
1
Price per vial
£29.99
Listing last checked
2026-09-22 11:04:33
Evidence status
Testing claimed
Manufacturer statement
"99%+ HPLC purity · batch COA"; "Specifications for this compound, independently verified by HPLC and LC-MS before release."; "PURITY (HPLC) 99.4%"; "MASS CONFIRMATION LC-MS confirmed"; "Every batch tested. Independently verified."
Laboratory
Not recorded
Certification body
Not recorded
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-09-22

PT-141 10 mg

UK Peptides (ukpeptides.com)
Why this score?
Testing & analytical evidence
10/45
Value
18/25
Product identity
11/15
Supplier transparency
3/10
Label & listing transparency
5/5
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
"99%+ HPLC purity · batch COA"; "Specifications for this compound, independently verified by HPLC and LC-MS before release."; "PURITY (HPLC) 99.4%"; "MASS CONFIRMATION LC-MS confirmed"; "Every batch tested. Independently verified."
Laboratory
Not recorded
Certification body
Not recorded
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-09-22
£3.00per mg
£29.99per pack
View AnalysisBuy Now