One vial measured.
Blend certificate: filed under 'BPC-157 5mg + TB500 5mg'; report titled 'BPC-157, Thymosin beta4 4 mg'; thymosin beta-4 measured 2.41 mg. Vendor-hosted; MZ Biolabs has no public lookup.
Legit, with caveats. Prices look low because every listing is shown at 45% off a list price; the sale price is the real price. Six of ten.
Research use only · not medical advice · we score documentation, never use or dosing · detailsBlue Sky Peptide is not a partner; Purgo Labs is, and the score does not read partner statusHow we score
MyPurePeptide is 71% cheaper per milligram than Blue Sky Peptide on this read. Per-milligram price is list price over labelled milligrams; it says nothing about what is in the vial. Code prices are list × (1 − the code's stated discount), not cart-tested against sales. We earn a commission on partner links; the rubric does not read partner status.
MZ Biolabs (Tucson, AZ) printed on the certificates in the COA library — read 24 Oct 2026
Not awarded. How to check: COAs are hosted on the testing lab's own system or carry a lab-side lookup code.
Certificates carry lot numbers (e.g. 6UQ0126, analysed 18 Jun 2026); the library invites buyers to ask for previous batch COAs
Certificate reports measured quantity per vial: 5.37 mg BPC-157 and 2.41 mg thymosin beta-4, combined purity 99.89%
Catalog, prices and the COA library readable without an account (24 Oct 2026)
Not awarded. How to check: Check the vendor on Trustpilot or an equivalent platform the vendor cannot edit.
Not awarded. How to check: Compare testing/lab statements across the vendor's own pages.
Sizes stated with prices on every listing (BPC-157 5mg $42.87; TB-500 5mg $43.97; NAD+ 500mg $77.52), read from the category page on 24 Oct 2026
Not awarded. How to check: The company's registered name (LLC, Inc., s.r.o. …) and a street address appear on the vendor's own Contact, About or Terms pages — not only a brand name, a city, or hidden page markup.
No on-site review score or badge found; no regulator action found (24 Oct 2026); payment rails not examined
One point per criterion, no weighting, same rubric for every vendor — scoreboard.
Just want to know whether it is safe to order from? The trust checks — company identity, lab lookup, payment rail, what we flagged — are on Is Blue Sky Peptide legit?
If you searched "blue sky peptide reviews", the first fact is that Trustpilot has removed the blueskypeptide.com profile for breaching its guidelines. Blue Sky says it has sold research peptides since 2013, but there is no independent review record left to read, and no company name or address on any page of its site.
The COA library is open: 65 PDFs from MZ Biolabs in Tucson, with lot numbers and measured quantities. They are hosted by the vendor, and MZ Biolabs has no public lookup, so none can be checked at the lab. The one we opened shows the problem with that. It is filed under the BPC-157 5 mg + TB-500 5 mg blend, but the report is titled '4 mg' and measures 5.37 mg BPC-157 and 2.41 mg thymosin beta-4, which fits neither the 5 + 5 listing nor a 2 + 2 one.
Prices look low because every listing is shown at 45% off a list price; the sale price is the real price. Six of ten.
read 24 Oct 2026
the library invites buyers to ask for previous batch COAs
5.37 mg BPC-157 and 2.41 mg thymosin beta-4, combined purity 99.89%
(24 Oct 2026)
TB-500 5mg $43.97; NAD+ 500mg $77.52), read from the category page on 24 Oct 2026
no regulator action found (24 Oct 2026); payment rails not examined
No company name or address appears on the contact, about or terms pages; the contact page is a form only. The certificates are vendor-hosted from MZ Biolabs, which has no public lookup. The blend certificate does not match its listing: filed under the 5 mg + 5 mg blend, titled 4 mg, and measuring 5.37 mg plus 2.41 mg, which fits neither label. Every price is shown as '45% off' a list price, which makes the 'list' figures meaningless as a reference.
Trustpilot has removed the profile ('goes against our guidelines', 24 Oct 2026).
| Compound | Size | Price |
|---|---|---|
| BPC-157 | 5mg | $42.87source |
| TB-500 | 2mg | $19.77source |
| TB-500 | 5mg | $43.97source |
| Ipamorelin | 2mg | $23.07source |
One vial measured.
Blend certificate: filed under 'BPC-157 5mg + TB500 5mg'; report titled 'BPC-157, Thymosin beta4 4 mg'; thymosin beta-4 measured 2.41 mg. Vendor-hosted; MZ Biolabs has no public lookup.
Blue Sky Peptide appears in 19 of our compound rankings. Each ranking orders every scored vendor that sells the compound by rubric score, then verified price per mg.
| Criterion | Blue Sky Peptide 6/10 | Purgo Labs 10/10 | MyPurePeptide 10/10 |
|---|---|---|---|
| Named lab | |||
| Lab-hosted COAs | |||
| Per-lot COAs | |||
| Net content | |||
| Ungated | |||
| Review base | |||
| Consistent claims | |||
| Sized pricing | |||
| Entity + address | |||
| Clean record | |||
| Trustpilot | none | 4.8 (101) | 4.8 (247) |
| Retatrutide 10mglist · with code | $109.97no code | $59.99$47.99 | $80$64 |
| This page | Visit | Visit |
Affiliate partner; we earn a commission on Purgo orders. We earn nothing from Blue Sky Peptide. Scores are computed from published evidence and do not read partner status.
It is an old shop that ships, with an open catalog and lot-numbered certificates. It scores 6/10: certificates cannot be checked at the lab, it publishes no company name or address, the blend certificate we opened does not match its listing, and Trustpilot has removed its profile.
There is no Trustpilot record to read because the profile has been removed for a guidelines breach. We found no other independent review record.
MZ Biolabs in Tucson, Arizona, on the certificates in its COA library. The PDFs are hosted by Blue Sky, and MZ Biolabs has no public lookup page.
Purgo Labs scores 10/10 on the same rubric, with lab-checkable certificates, a named company and a review record; code HEALTH takes 20% off. Purgo Labs is an affiliate partner of ours; Blue Sky is not.
As of 24 October 2026, Blue Sky Peptide scores 6/10 on our verification rubric and has Trustpilot profile removed. The trust assessment — who runs it, whether a certificate can be checked with the lab, the payment rail, and what we flagged — is on our "Is Blue Sky Peptide legit?" page at /guides/is-blue-sky-peptide-legit.
Read 24 October 2026, logged out: catalog, prices and a COA library of 65 PDFs open without an account. The certificate filed under 'Blend BPC-157 5mg with Thymosin Beta 4 (TB500) 5mg' is an MZ Biolabs report (lot 6UQ0126, analysed 18 Jun 2026) titled 'BPC-157, Thymosin beta4 4 mg', measuring 5.37 mg BPC-157 and 2.41 mg thymosin beta-4 per vial, combined purity 99.89%, identity confirmed by mass. The About page says the business has supplied research peptides since 2013. Prices from the category page, each shown as 45% off a list price: BPC-157 5mg $42.87; TB-500 5mg $43.97; Ipamorelin 2mg $23.07; GHK-Cu 50mg $45.62; MOTS-c 10mg $45.62; NAD+ 500mg $77.52; Retatrutide 10mg $109.97 (sold as 'Reta (GLP-1/GIP/GCG)').
Trustpilot has removed the blueskypeptide.com profile ('goes against our guidelines', read 24 Oct 2026). No company name or address appears on the contact, about or terms pages; the contact page is a form only. The certificates are vendor-hosted from MZ Biolabs, which has no public lookup. The blend certificate does not match its listing: filed under the 5 mg + 5 mg blend, titled 4 mg, and measuring 5.37 mg plus 2.41 mg, which fits neither label. Every price is shown as '45% off' a list price, which makes the 'list' figures meaningless as a reference.
No company name or legal entity published on the pages we read (24 Oct 2026). (read 24 October 2026 from the vendor's own pages).
Blue Sky Peptide names MZ Biolabs (on certificates). We could not confirm that certificates resolve on the lab's own system; the reports we opened were vendor-hosted. Read 24 October 2026, logged out: catalog, prices and a COA library of 65 PDFs open without an account. The certificate filed under 'Blend BPC-157 5mg with Thymosin Beta 4 (TB500) 5mg' is an MZ Biolabs report (lot 6UQ0126, analysed 18 Jun 2026) titled 'BPC-157, Thymosin beta4 4 mg', measuring 5.37 mg BPC-157 and 2.41 mg thymosin beta-4 per vial, combined purity 99.89%, identity confirmed by mass. The About page says the business has supplied research peptides since 2013. Prices from the category page, each shown as 45% off a list price: BPC-157 5mg $42.87; TB-500 5mg $43.97; Ipamorelin 2mg $23.07; GHK-Cu 50mg $45.62; MOTS-c 10mg $45.62; NAD+ 500mg $77.52; Retatrutide 10mg $109.97 (sold as 'Reta (GLP-1/GIP/GCG)').
On our published rubric Blue Sky Peptide scores 6/10 and Purgo Labs 10/10. Purgo Labs is our affiliate partner and Blue Sky Peptide is not; the comparison module on this page shows the criteria each earns and the same vial at both prices, computed from the same dated data.
5mg was $42.87 on 24 October 2026 (read 24 Oct 2026). Prices move; we record what we saw and when.