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Tesamorelin 20-mg / owsa-tes-20mg
Product analysis · Owsa Labs

Tesamorelin 20-mg / owsa-tes-20mg

20 mg per vial of Tesamorelin, sold by Owsa Labs. No analytical report has been located for this listing. For laboratory research use only.

Why this score?
Testing & analytical evidence
12/45
Value
25/25
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: 12/45
£59.99Owsa Labs
20 mgVial size
1Vials per pack
£59.99Price / vial
£3.00Price / mg
Buy NowCompare alternatives

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 evidence27/100
12 of 45 points
Value100/100
25 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: 55.5/100 - Limited. 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

Testing claimed

Evidence status
Testing claimed
Manufacturer statement
THIRD-PARTY TESTED Certificate of Analysis No independent COA has been published for this lot yet. We list published peptide reports on the Certificates of Analysis page.
Laboratory
Not recorded
Certification body
Not recorded
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-10-29

The product page says no independent COA has been published for this lot yet, and the certificates page lists Tesamorelin 20 mg as “Not currently published.” I found no accessible report, so there is no batch-specific analytical evidence for this listing.

Dose & value

Vial size
20 mg
Vials per pack
1 (single vial)
Pack price
£59.99
Price per vial
£59.99
Price per mg
£3.00
Compared with other suppliers
4% below the median (13 suppliers, same peptide)
Price last checked
29 Oct 2026

Tesamorelin product details

Compound
Tesamorelin
Supplier product name
Tesamorelin
Supplier product code (SKU)
OWSA-TES-20MG
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 Tesamorelin suppliers →

What the record makes clear

  • No analytical report was located for this listing.
  • No batch number is recorded against this listing.
  • 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

Tesamorelin 20mgRoyale Bio Labs

Why this score?
Testing & analytical evidence
10/45
Value
9/25
Product identity
10/15
Supplier transparency
5/10
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
20 mg / vial
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
"3rd-party lab tested · COA available"; "99%+ purity"; "Every vial in our catalog ships with an independent Certificate of Analysis confirming identity, purity, and mass."; "A signed 3rd-party COA is available for our catalog batches. No COA means no shipment."
Laboratory
Not recorded
Certification body
Not recorded
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-10-25
£9.45per mg
£189.00per pack
View AnalysisBuy Now
Product & testing details
Vials per pack
1
Price per vial
£189.00
Listing last checked
2026-10-29 21:32:06
Evidence status
Testing claimed
Manufacturer statement
"3rd-party lab tested · COA available"; "99%+ purity"; "Every vial in our catalog ships with an independent Certificate of Analysis confirming identity, purity, and mass."; "A signed 3rd-party COA is available for our catalog batches. No COA means no shipment."
Laboratory
Not recorded
Certification body
Not recorded
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-10-25

Tesamorelin 20mg

Royale Bio Labs
Why this score?
Testing & analytical evidence
10/45
Value
9/25
Product identity
10/15
Supplier transparency
5/10
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
"3rd-party lab tested · COA available"; "99%+ purity"; "Every vial in our catalog ships with an independent Certificate of Analysis confirming identity, purity, and mass."; "A signed 3rd-party COA is available for our catalog batches. No COA means no shipment."
Laboratory
Not recorded
Certification body
Not recorded
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-10-25
£9.45per mg
£189.00per pack
View AnalysisBuy Now

Compare alternative

Tesamorelin 10mgAscend Peptides UK

Why this score?
Testing & analytical evidence
39/45
Value
21/25
Product identity
13/15
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
Verified independent evidence
Manufacturer statement
Tesamorelin 10mg research peptide UK is ... ≥98% purity. Janoshik tested.
Laboratory
Janoshik Analytical
Certification body
Not recorded
Batch
20260114
Batch-specific report
Recorded
Report date
2026-04-07
Evidence checked
2026-09-21
£4.00per mg
£39.99per pack
View AnalysisBuy Now
Product & testing details
Vials per pack
1
Price per vial
£39.99
Listing last checked
2026-10-29 21:32:04
Evidence status
Verified independent evidence
Manufacturer statement
Tesamorelin 10mg research peptide UK is ... ≥98% purity. Janoshik tested.
Laboratory
Janoshik Analytical
Certification body
Not recorded
Batch
20260114
Batch-specific report
Recorded
Report date
2026-04-07
Evidence checked
2026-09-21

Tesamorelin 10mg

Ascend Peptides UK
Why this score?
Testing & analytical evidence
39/45
Value
21/25
Product identity
13/15
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
Verified independent evidence
Manufacturer statement
Tesamorelin 10mg research peptide UK is ... ≥98% purity. Janoshik tested.
Laboratory
Janoshik Analytical
Certification body
Not recorded
Batch
20260114
Batch-specific report
Recorded
Report date
2026-04-07
Evidence checked
2026-09-21
£4.00per mg
£39.99per pack
View AnalysisBuy Now

Compare alternative

Tesamorelin 10mgPepSource

Why this score?
Testing & analytical evidence
40/45
Value
18/25
Product identity
14/15
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
Verified independent evidence
Manufacturer statement
Every batch is independently third-party tested for HPLC purity and mass-spectrometry identity; the certificate of analysis for the batch you receive is published on our lab results page. Batch AS250910 · Third-party tested
Laboratory
Janoshik Analytical
Certification body
Not recorded
Batch
AS250910
Batch-specific report
Recorded
Report date
2025-09-12
Evidence checked
2026-09-22
£5.00per mg
£50.00per pack
View AnalysisBuy Now
Product & testing details
Supplier
PepSource
Vials per pack
1
Price per vial
£50.00
Listing last checked
2026-10-29 21:32:05
Evidence status
Verified independent evidence
Manufacturer statement
Every batch is independently third-party tested for HPLC purity and mass-spectrometry identity; the certificate of analysis for the batch you receive is published on our lab results page. Batch AS250910 · Third-party tested
Laboratory
Janoshik Analytical
Certification body
Not recorded
Batch
AS250910
Batch-specific report
Recorded
Report date
2025-09-12
Evidence checked
2026-09-22

Tesamorelin 10mg

PepSource
Why this score?
Testing & analytical evidence
40/45
Value
18/25
Product identity
14/15
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
Verified independent evidence
Manufacturer statement
Every batch is independently third-party tested for HPLC purity and mass-spectrometry identity; the certificate of analysis for the batch you receive is published on our lab results page. Batch AS250910 · Third-party tested
Laboratory
Janoshik Analytical
Certification body
Not recorded
Batch
AS250910
Batch-specific report
Recorded
Report date
2025-09-12
Evidence checked
2026-09-22
£5.00per mg
£50.00per pack
View AnalysisBuy Now