- HPLC purity
- 99.67%
- Mass spec identity
- Confirmed
- Appearance
- White fine powder
- Date of testing
- March 2026
Representative of the certificate format. Each lot carries its own measured figures, signed by the analysing laboratory.
OUR STORY
Built for researchers who
expect verified results.
Reflex Peptides was founded on a simple principle: a research-grade material should be independently verified, fully documented, and traceable from synthesis to delivery — and you should be able to check all three before you buy.
≥99%HPLC-verified purity
29Certificates published
32Compounds documented
100%Independently tested
Our mission
Remove the uncertainty from research.
Reliable research begins with reliable materials. Too many researchers lose time to questionable purity claims, missing documentation, and lot-to-lot inconsistency — problems that only surface once an experiment has already failed.
Reflex exists to take that variable off the table. Every compound is independently tested for purity and identity, supported by full analytical documentation, and traceable from synthesis through to the vial that arrives. When your results depend on what is actually in the vial, there is no room for a number nobody can check.
That is also why our certificates are published up front rather than sent on request. A claim you cannot verify before you order is a claim you are being asked to take on trust.
Our process
The four foundations of quality
Every compound clears the same four stages before it reaches a laboratory.
- 01
Peptide synthesis
Material is produced by solid-phase peptide synthesis using pharmaceutical-grade Fmoc amino acids and optimised coupling chemistry, so that each sequence is built to the same specification every run.
- 02
HPLC purification
Each batch goes through preparative reversed-phase HPLC under optimised gradient conditions. Any fraction that fails to reach our ≥99% purity threshold is rejected outright — it is not blended down or released.
- 03
Third-party verification
Every batch is analysed by an accredited independent U.S. laboratory: HPLC for purity, mass spectrometry for identity. Testing sits outside the company on purpose — self-reported numbers are not evidence.
- 04
Published documentation
The Certificate of Analysis for the lot is published on the product page and in the COA library before that lot ships, and stays searchable by lot number afterwards.
Complete transparency
The certificate comes before the sale.
Most suppliers will send a Certificate of Analysis after you have paid. Ours are published on every product page and in the COA library, for every lot — so you can read the evidence and then decide.
- HPLC chromatograms with the measured purity figure
- Mass spectrometry identity confirmation
- Lot numbers traceable to their testing dates
- The analysing laboratory named on the certificate
Our commitment
What you can rely on, every time
Same-day dispatch
Orders placed before 2PM EST ship the same business day, with tracking. Free US shipping over $100.
Specialists on support
Questions are answered by people who know peptide chemistry — not scripted replies. Typical response time is under four hours.
Meets spec, or your money back
Have any lot independently re-tested. If it does not meet the specification published on its certificate, we replace it or refund the order in full.
Research use only. Every product supplied by Reflex Peptides is intended solely for laboratory research and analytical purposes. Nothing sold here is for human or veterinary use, and no product is intended to diagnose, treat, cure, or prevent any disease. Statements on this site have not been evaluated by the U.S. Food and Drug Administration.
From synthesis to published certificate
Ready when your research is.
32 research compounds, independently tested and documented. Free US shipping over $100.