Company & checkout
Pure Bio Labs LLC operates from San Antonio, Texas. The domain was registered on 2024-02-21. Court records confirm a real operating entity: the company filed a trademark suit as plaintiff in the Western District of Texas.
Independent vendor review
Is PureBio Labs Legit?
Reviewed August 20267.5/10
Review profile checked August 5, 2026 · Independently fact-checkedView Trustpilot profile ↗
How the score breaks down
PureBio Labs scored across our four rubric factors — COA practices (40%), reputation, transparency, and operations (20% each).
COA practices 40%10/10
Reputation 20%5/10
Transparency 20%7/10
Operations 20%6/10
Weighted factor result: 7.6/10. The published score follows the weighted result after rounding.
7.5/10Evidence score
5Public reviews
★ 2.8/5Trustpilot average
48Catalog
Evidence summary
Why PureBio Labs is rated 7.5/10
Our conclusion
PureBio Labs runs a strong COA programme. Its current reports come from a named external laboratory and cover purity, endotoxin, heavy metals and microbiological testing. Few vendors publish that breadth.
PeptidePrices verified three earlier reports through the issuing laboratory's own portal, confirmed that an invalid code is rejected, and confirmed that the published copies match the laboratory's stored copies.
The customer review record is weaker than the storefront suggests. The 5.0 rating on the site rests on a review set that is largely imported, and 63% of those reviews are dated before the product they describe was published. The independent record, Trustpilot, reads 2.8 out of 5.
Buyers should check the return terms before ordering. Three different policies are published at once and they contradict each other.
Verification notes
What we reviewed, with the limits of that evidence kept explicit.
COA review
The COA library is public and holds 174 report images. Coverage is about 88% of the individually testable catalog. Two external laboratories are named. Ethos Analytics Laboratory of Phoenix, Arizona issues the current reports. Chromate issued the earlier ones.
Reputation & rating context
The Ethos reports run a full panel. They cover chromatographic purity above 99%, bacterial endotoxin below 1.25 EU/ml against a limit of 5, heavy metals by USP <233>, and microbiological testing by USP <61> and <62>. PeptidePrices inspected three Ethos reports and three Chromate reports.
Evidence note
Chromate publishes a verification portal. PeptidePrices verified three report codes through it. An invalid code is rejected, so a successful lookup carries meaning. PeptidePrices then compared the laboratory's stored copies against the copies the vendor publishes. They are identical.
Evidence note
Ethos Analytics operates no verification portal, so the newer reports cannot be checked independently. Its reports state an ISO 17025 accreditation number. PeptidePrices did not find that number in the A2LA, ANAB or PJLA registries.
Evidence note
The vendor sells three products under the codenames GLP-1, GLP-2 and GLP-3. PeptidePrices identified all three from the chemistry printed on their COAs. GLP-1 is semaglutide, GLP-2 is tirzepatide and GLP-3 is retatrutide. The vial shown on the GLP-2 report carries a printed label for a different molecule. The analytical data identifies tirzepatide. The label does not.
Evidence note
Shipping is within the United States only. Orders placed before 2 PM CDT ship the same business day and arrive in 2 to 4 business days.
Buying details
Shipping, payment, and evidence
Ships toUnited States
Payment methods
Credit/debit card
COA qualityCOA ✓
Decision guide
PureBio Labs — strengths and watch-outs
Strengths
- COAs are public with no login. 174 reports cover about 88% of the individually testable catalog
- Two external laboratories are named. Ethos Analytics issues the current reports and Chromate issued the earlier ones
- The current reports run a full panel: purity, bacterial endotoxin, heavy metals by USP <233>, and microbiological testing by USP <61> and <62>
- Chromate operates a public verification portal. PeptidePrices verified three reports through it, confirmed that an invalid code fails, and confirmed the published copies are identical to the laboratory's own
- The company discloses a legal name and a street address, has traded since February 2024, and filed a federal trademark suit as plaintiff
Watch-outs
- The on-site review record is largely seeded. About 72% carry a bulk-import timestamp and 63% are dated before the product they review was published
- Trustpilot shows 2.8 out of 5 from 5 reviews, and the recurring complaint is that customer service does not respond
- Three different return policies are published at the same time. One gives 60 days, one gives 3 days with a 10% restocking fee, and the Terms state that no refunds are given
- The vial label on the GLP-2 COA prints the identifiers of a different molecule from the one the report analyses
- Ethos Analytics operates no verification portal, and the ISO 17025 number on its reports was not found in any accreditation registry
- Only 30 of 101 product pages link to their own COA. A buyer has to find the library
- Payment methods are not disclosed. Every Shopify wallet is disabled and no card brands are shown outside checkout
Customer reputation
PureBio Labs reviews: what customers report
Customer reviews describe service and order experiences. They do not prove identity, purity, vial content, sterility, or manufacturing standards. We keep them separate from COA and independent-testing evidence.
Trustpilot
2.8 out of 5 from 5 reviewsFour of the five reviews are one star. The company claimed the profile in April 2026 and Trustpilot notes that it has not replied to negative reviews. Recurring themes are unanswered customer service, an unexplained subscription charge, and a product that failed on reconstitution. The sample is small.
Check the source →Vendor site
683 reviews at 5.0, largely seededPeptidePrices pulled the full review feed. About 72% carry a midnight timestamp, which is an artifact of a bulk import, and 78% reuse only 45 distinct texts averaging 36 characters. About 63% are dated before the product they review was published. Half are unverified. No review is one or two stars. The platform's own store page states that the vendor published only 59% of its verified reviews. A discount is offered in exchange for a review. The defensible organic subset is roughly 130 reviews. This rating must not be presented beside the independent Trustpilot score.
Check the source →Finnrick
No profileChecked against the full public vendor directory. Finnrick has published no independent laboratory test of this vendor.
Check the source →A thread asking whether the vendor is legitimate received one reply, which asked the same question back. No customer account of an order exists.
Check the source →Court record
Trademark suit filed as plaintiffPure Bio Labs LLC v. Teloyouth Inc., case 5:25-cv-00929 in the Western District of Texas, filed 2025-08-05 and dismissed 2025-10-31. This confirms a real operating entity that enforces its mark. It is not a customer review.
Check the source →PeptidePrices community
Reviews from our readers
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Direct answers
PureBio Labs frequently asked questions
Is PureBio Labs legit?
PureBio Labs scores 7.5/10 in our evidence rubric: 40% COA practices, 20% reputation, 20% transparency, and 20% operations. Read the findings below for the evidence behind that number.
Is purebiolabs.com legit? Are PureBio Labs reviews trustworthy?
purebiolabs.com is the official website of PureBio Labs. PureBio Labs scores 7.5/10 in our published evidence rubric. Trustpilot currently shows 2.8/5 from 5 public reviews. Customer opinions do not verify composition or laboratory quality.
Does PureBio Labs publish COAs?
COA status: COA ✓ with third-party testing. Public COA library at /pages/coa-reports with no login: 174 report images across 78 pages, covering about 73 of 83 individually testable SKUs (~88%). Two named third-party labs. Chromate (chromate.org) issued the older September 2025 reports covering identity, quantity and purity. Ethos Analytics Laboratory (Phoenix, AZ) issues the current June 2026 reports, and those run a FULL panel: chromatographic purity above 99%, bacterial endotoxin below 1.25 EU/ml against a <5 spec, heavy metals by USP <
Where is PureBio Labs based?
PureBio Labs operates out of San Antonio, TX.
How does PureBio Labs compare to other peptide vendors?
See our /vendors page for the full ranked list. We use the same rubric for every vendor on the site, so direct comparison is straightforward.
How we rate vendors
Our evidence scores use a weighted rubric: 40% COA practices (named third-party lab, batch linkage, public availability), 20% community reputation, 20% transparency, and 20% operations. We are independently owned; affiliate status is not a scoring factor.
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PeptidePrices is independently owned and participates in PureBio Labs's affiliate program. We may be paid for qualifying purchases through our links. PureBio Labs cannot edit or approve this review, and the relationship does not add points to its score.