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Free delivery on orders over $300
Same-day shipping available
Order before 11AM for same-day dispatch
About Us
About Us
Built for Researchers Who Verify, Not Just Trust
Nexa Peptide Labs exists because too many suppliers treat a certificate of analysis as a marketing asset instead of a verification document. We test every batch independently and publish the results, so you never have to take our word for it.
Our Story
Why We Started Nexa Peptide Labs
Nexa Peptide Labs was founded in 2016 by Daniel Ashworth, who spent years working in pharmaceutical quality control before turning his attention to the research peptide industry. What he found troubled him, suppliers reusing the same generic certificate across every batch, purity claims with no identity testing behind them, and documentation that was treated as a courtesy rather than a standard.
He started Nexa Peptide Labs with one rule, nothing ships without a lot specific certificate from an independent lab. That rule has not changed since, even as the catalog and the team have grown around it.
2016
Nexa Peptide Labs founded on a single standard, independent testing on every batch, no exceptions.
2018
Formal testing partnership established with an accredited third party laboratory.
2021
Public certificate of analysis library launched, searchable by lot number, no account or email required.
Today
Every batch we release carries a lot specific COA covering both purity and identity testing.
Our Standard
How We Prove What We Say
The single biggest trust factor researchers look for is whether a certificate can be traced to the exact vial in hand, not a catalog page. Here is how that works for every order.
01
Independent Lab Testing
Every batch is tested by an accredited third party laboratory. We do not grade our own homework with in house results.
02
Purity and Identity, Both
Batches are confirmed with HPLC for purity percentage and mass spectrometry for molecular identity, not one or the other.
03
Lot Specific Documentation
The certificate you receive matches the exact lot number on your vial, never a generic reissued document.
04
Public, No Account Needed
Certificates are published on our site and viewable by anyone, no email request or login required.
What We Value
The Standards We Hold Ourselves To
- Traceability
- Every claim we make is checkable, a certificate, a lab name, a policy page, never just a statement.
- Plain Labeling
- Products are labeled with what they are, at what purity, tested by whom, with no vague marketing substitutes for real data.
- Research Use Boundaries
- We are explicit that our products are sold for laboratory research only, and we do not blur that line in our marketing.
- Responsive Support
- Order, shipping, and documentation questions get a real reply from our team, typically within one business day.
Who We Are
The People Behind Nexa Peptide Labs
A small team, working under one standard, verify everything before it ships.
Daniel Ashworth
Founder
Spent years in pharmaceutical quality control before founding Nexa Peptide Labs in 2016 to bring that same documentation standard to research suppliers.
Elena Cho
Lab Operations Director
An analytical chemist by training, Elena oversees every testing partnership and signs off on each batch before it is released.
Marcus Delgado
Customer and Compliance Lead
Marcus makes sure our research use policies are communicated clearly and handles every documentation request personally.
450+
Compounds tested and documented
99%
Average verified purity across catalog
3
Independent lab partners
24hr
Average support response time
Research Use Only. All products offered by
Nexa Peptide Labs are intended solely for laboratory and
research purposes. They are not for human or animal consumption
and have not been evaluated or approved by the FDA for any
other use.
Engineered for Precision. Trusted by Researchers.
At NexaPeptide Labs, we deliver research-grade peptides manufactured with strict quality standards and verified purity. Every product is developed with consistency, accuracy, and reliability in mind—giving researchers confidence in every experiment.
99%+
Purity StandardCOA
Verified BatchesGlobal
Shipping24/7
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