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American-made research compounds

AdvancedResearch CompoundsManufactured in America

We don't compete on price — we compete on quality, consistency, transparency, and American manufacturing. Since 2019, we've made high-purity research peptides for in vitro use, verified by accredited labs with complete analytical documentation.

Same-day fulfillment

99%+ verified purity

Dedicated support

99%+ PurityGuaranteed per batch
HPLC + Mass SpecIndependent lab verified
8× TestedILS Laboratories ISO/IEC 17025
GMP-CompliantUSA-manufactured
Same-Day ShippingFree FedEx on $200+
99%+ PurityGuaranteed per batch
HPLC + Mass SpecIndependent lab verified
8× TestedILS Laboratories ISO/IEC 17025
GMP-CompliantUSA-manufactured
Same-Day ShippingFree FedEx on $200+
99%+ PurityGuaranteed per batch
HPLC + Mass SpecIndependent lab verified
8× TestedILS Laboratories ISO/IEC 17025
GMP-CompliantUSA-manufactured
Same-Day ShippingFree FedEx on $200+

Most popular

18,000+ Compounds Shipped

Featured Compounds

View all

Built into every vial

Proof you can scan, test, and trust.

Transparency isn't a marketing line — it's printed on the label and backed by a document. Every claim below comes with a receipt.

PX1 Research peptide vial back label with scannable batch QR code and Made in USA
PX1 Research kraft cardboard shipping box, ready for same-day dispatch

Scan QR code for COA demonstration*

Compounds no one else carries

The Most Advanced Compounds.
The PX1 Standard.

From established research compounds to next-generation peptides, advanced blends, bioregulators, and emerging research molecules, PX1 offers one of the most comprehensive research portfolios available. We don't build it around what's easiest to source — we build it around what's next.

Our continually expanding selection gives research organizations access to specialized compounds, sophisticated formulations, and unique multi-compound blends — all backed by the same PX1 commitment to American production, testing, consistency, and quality.

Browse the full catalog

150+

Compounds in catalog

Exclusive

Proprietary blends & rare sequences

In-house

Developed & produced domestically

Every lot

Tested & documented to PX1 standard

The PX1 Protocol

8 checks.
One release decision.

Precision requires a sequence. We don't skip steps. Every lot must clear all eight.

Check 01
Purity
99%+
HPLC-UV quantification
Check 02
Content
100%
Mass & concentration
Check 03
Identity
LC-MS
Mass spectrometry
Check 04
Metals
USP
ICP-MS screening
Check 05
Solvents
USP
GC-MS residual screening
Check 06
Sterility
ISO
USP <71> compliant
Check 07
Endotoxins
<0.1
LAL chromogenic assay
Check 08
Batch
8×
Independent review

No lot ships until it clears every identity, purity, safety, and conformity check. Full COA documentation is provided with every shipment.

View Sample COA

High Quality — 99% Purity Guaranteed

Testing Guarantee

We continuously run HPLC and mass-spectrometry testing on every raw powder and finished product. If you have a PX1 product tested at any licensed HPLC facility and the results are negative, we will refund the following:

HPLC Test Fee

$100

Plus total amount of the order + shipping fee

Why laboratories
choose PX1

Proof should never be hard to find. Every batch is an oath of accuracy, backed by a 100% satisfaction commitment.

Metric 01
100%

Public COAs

A traceable report for every batch.

Metric 02
< 6h

Expert support

Researchers on staff, not a script.

Metric 03
100%

USA made

Manufactured in the United States.

Metric 04
150+

Largest compound catalog online you can only get here

Single compounds to blends.

Metric 05
8×

Multi-point testing

Every batch must clear all eight tests.

Metric 06
2–3d

Fast shipping

In-stock orders placed by 2PM EST.

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