About Us

About PureX Bio

PureX Bio supplies research-grade peptides for one kind of customer: the researcher who reads the data before the marketing. Every lot is verified by independent U.S. third-party laboratories, released with a Certificate of Analysis you can pull up in seconds, and shipped from our US fulfillment facility.

≥ 98.0% Purity  ·  Third-Party Verified  ·  Shipped from the USA  ·  Ships Same Day

≥ 98.0%

Verified purity on every lot

Per lot

Published Certificate of Analysis

1,000+

Researchers supplied

7 Days

Live support, 7am–7pm ET

Who We Are

Built for Researchers Who Check the Numbers

PureX Bio was founded on a simple observation: in this industry, everyone claims purity — almost no one proves it. So we built our entire operation around documentation. Every lot we list is submitted to independent U.S. laboratories, and its certificate is published before the lot is offered for sale.

Each lot is tested and documented individually — results are never carried over from another lot. Every lot goes to independent third-party laboratories and must clear its release panel before it is offered for sale. Anything that fails specification is not sold, and is never downgraded and relabelled as a lower grade.

• Lot-level traceability, from documentation to release

• Independent HPLC purity and mass-spec identity on every lot

• Off-spec lots are not sold — never relabeled, never resold

The PureX Standard

Six Commitments. Zero Exceptions.

The same standard applies to every compound in the catalog — no exceptions for popular items, no shortcuts on slow movers.

Independently Verified

Every lot goes to an independent U.S. laboratory for RP-HPLC purity and LC-MS identity verification before release.

Documented, Not Claimed

Lot-level Certificates of Analysis are published in our COA Library. Check the numbers on your vial before you ever open it.

Independently Tested, Shipped from the USA

Every lot is tested by independent U.S. laboratories, and orders are fulfilled and shipped from our US facility.

Screened Beyond Purity

LAL endotoxin screening (≤ 0.05 EU/mg), sterility to USP <71>, total yeast & mold to USP <61>/<62>, heavy metals by ICP-OES and pH.

Handled Like It Matters

Lots are held at −20 °C, desiccated and protected from light, and shipped in an insulated shipper, with frozen gel packs available as an optional add-on at checkout.

Humans Who Answer

Call or text (727) 415-6251, 7am–7pm ET, seven days a week. Real people, researcher-grade answers.

From Documentation to Released Lot

How Every Lot Earns Its Number

Lot Intake and Records

Each lot arrives with its documentation and is assigned a lot number that follows the material through testing, storage and fulfillment.

Independent Testing

Each lot is verified by third-party laboratories — purity and identity, plus safety screening such as endotoxin, microbial, heavy metals and water content. The panel varies by lot; the certificate lists exactly what was run.

Published Documentation

The Certificate of Analysis is published to our COA Library under a lot number that traces back through the lot record.

Same-Day Fulfillment

Order by 5 PM ET on a business day and your lot ships that day, in an insulated shipper designed to arrive research-ready. Orders after cutoff, at weekends or on holidays ship the next business day.

Research Use Only — and We Mean It

PureX Bio products are supplied strictly for laboratory and in-vitro research use. They are not for human consumption, clinical use, or veterinary applications, and we sell only to qualified researchers aged 21 and over. Every vial is labeled accordingly, and our team — guided by our Scientific Advisory — is trained to keep that line bright. It’s not fine print. It’s the foundation of a serious research supplier.

Run Your Next Study on Verified Material

Browse the catalog, pull any lot’s Certificate of Analysis, and see the difference documentation makes.

Call or Text (727) 415-6251  ·  7am–7pm ET  ·  7 Days a Week