Proof, not promises.
Research peptides shouldn't require a leap of faith. Every batch is independently tested, and the certificate that proves it ships with your order.
Peptyx Labs exists because a research compound is only as good as the paperwork that describes it. Anyone can print 99% on a label. We publish the batch-specific certificate that proves it.
Every lot is independently tested by accredited U.S. laboratories — purity by HPLC, identity by mass spectrometry — and the certificate of analysis is available on the product page, tied to the lot number printed on the vial you receive.
Our products are sold strictly for in-vitro research. We do not provide dosing guidance, we do not claim therapeutic benefit, and we refuse any order that suggests human or animal consumption.
What we stand for
Six principles, written down.
Transparency by default
Every batch ships with a batch-specific certificate of analysis — linked from the product page, not buried in an email.
99%+ or it doesn't ship
Purity is quantified by HPLC against a certified reference standard on every lot. Material that doesn't clear the floor isn't sold.
Independent verification
The lab that measures the material is never the lab that made it. Identity is confirmed by mass spectrometry, batch by batch.
Researcher-only
We verify research intent at the gate and refuse any order that suggests human or veterinary use. No exceptions.
Shipped from the USA
Orders placed before 1 PM PST ship the same day, with free 3-day priority shipping and full tracking on every order.
Quietly premium
Discreet packaging, fast support, and an honest catalog. Nothing flashy, nothing hidden.
The standard
What we hold ourselves to.
- 99%+
- Purity floor on every lot, quantified by HPLC against a certified reference standard.
- 7×
- Separate checks between synthesis and shipment, from purity through batch release.
- 1 PM PST
- Same-day dispatch cutoff, with free 3-day priority shipping on every order.
- Every batch
- A lot-specific certificate of analysis, published on the product page.
Built for the bench. Verified for your peace of mind.
Browse the catalog, read a COA, or talk to our team. We respond to researcher questions within one business day.
