protopeptide.is Review

Third-party lab testing: 3 independent Janoshik assays on file, covering 3 substances, median measured purity 99.5%, most recent test 2025-07-08.

protopeptide.is sells direct to researchers. It lists 28 products, including SS-31, MOTS-c, Ipamorelin, BPC-157, TB-500, and Tesamorelin, plus 2 other compounds.

In its own words: “We’re not a compounding pharmacy. We don’t create or dispense medications. And we don’t sell anything for use on humans or animals. Instead, Proto Peptide operates solely as a research supplier, serving researchers and licensed institutions with materials that are strictly intended for educational and scientific purposes. All of our materials are clearly labeled and tested by trusted third party analytical labs to he”

We found no test results or certificates anywhere on protopeptide.is's site. Of the 12 product pages we opened, 8 state ≥99% purity.

Prices run from $10.00 to $270.00 across 28 listed products. Payment is by credit card. Orders ship with FedEx, UPS, and Canada Post. Quoted delivery is 2–7 business days to Canada, 3–10 business days to United States.

Worth knowing before you order: no published COAs. We found no certificates of analysis or third-party test results anywhere on the site.

Site check: 28 products listed; payment by credit card; ships via FedEx, UPS, Canada Post.

protopeptide.is is listed as active. Discovered via Janoshik third-party lab testing.

Independent lab test results for protopeptide.is

SubstanceMeasured purityTest date
GLP Ill (r) 10 Mg99.14%2025-07-08
GLP Il (t) 30mg99.87%2025-07-08
GHKCU & Tb500 & BPC 157 70mg Blendnot reported2025-07-08

2 of these 3 assays report a measured purity figure. The other 1 confirm the substance was submitted and tested but carry no purity number on the certificate, which is not the same as a failed result.

The record for protopeptide.is

StatusActive
Independent assays on file3
Median measured purity99.5%
Certificates of analysisVendor states COAs are available
Vendor typeResearch-use supplier

What we found

Advertised purity against measured purity

This vendor advertises ≥99%. Across 3 independent Janoshik assays of its products, median measured purity is 99.5%, most recently 2025-07-08.

Ordering and payment

Payment methods
Credit Card
Card payments
Accepted
Cryptocurrency
Not accepted
Pricing
Listed publicly on the site
Currency
CAD
Online checkout
Available

Shipping and handling

Ships to
United States, Canada
Carriers
FedEx, UPS, Canada Post
Stated lead time
[object Object]; [object Object]
Lost or damaged parcels
The buyer is responsible for any re-shipping fees. Original shipping costs will not be refunded, and restocking fees may apply.

Returns and guarantees

Returns
In the rare event that a package arrives damaged, please contact us within 7 days of receipt at [email protected] m with photos and a description of the issue. We will investigate and, if applicable, coordinate a replacement or refund according to our policies.
Research-use notice
Published on the site

Company details

Legal name
Proto Peptide
Basis for location
Site copy references United States; Site copy references Canada

Contact channels

Email
[email protected], [email protected]
Contact page
https://protopeptide.is/pages/contact

Testing and certificates

Purity grades advertised
≥99%
Products listed
28

How we checked

These details were read from protopeptide.is's own website on 2026-08-10. Pages consulted:

Products listed by this vendor

Frequently asked questions

Is protopeptide.is legit?

protopeptide.is is listed as active and we hold 3 independent Janoshik assays on file, median measured purity 99.5%. That is evidence about the batches that were tested or published, not a guarantee about the vial you receive.

Has protopeptide.is been lab tested?

Yes. We hold 3 third-party Janoshik assays for protopeptide.is, covering 3 substances, with a median measured purity of 99.5%. The most recent is dated 2025-07-08.

How do you pay protopeptide.is?

protopeptide.is accepts Credit Card.

Where does protopeptide.is ship from?

protopeptide.is uses FedEx and UPS and Canada Post.

Popular peptides: Semaglutide, Tirzepatide, Retatrutide, BPC-157, CJC-1295, Ipamorelin.

Other reviewed vendors: PTDS Peptides Review, Ptidebio Peptides Review, Pulse Research Expansion Peptides Review.