Why Us
A supplier you can audit
Anyone can print “≥99% purity” on a label. The question a laboratory should ask is who measured it, by what method, on which lot — and whether the report is available without asking. Here is our answer to each of those.
Seven assays before a lot is released
Performed at an independent laboratory with no commercial interest in the outcome. Every figure is published against the lot number on your vial.
Mass spectrometry confirms the molecular ion matches the declared sequence before anything else proceeds.
Reverse-phase HPLC quantifies the main peak against all detectable related substances at 214 nm.
Karl Fischer titration measures residual moisture — the figure that governs shelf stability.
Headspace GC screens for residual synthesis solvents against ICH Q3C limits.
ICP-MS screens for heavy-metal carryover from synthesis and purification.
LAL assay measures bacterial endotoxin load in EU/mg for cell-culture suitability.
Filled vials are held and screened for microbial growth before the lot is released.
What we hold ourselves to
Every COA published
Not "available on request." Every lot report is on the site, searchable by lot number, before a purchase is made.
Independent assay
Testing is performed by a third-party laboratory. We do not self-report purity, and we do not choose which lots get tested.
American-owned
A US company, US facility, US stock. Nothing is drop-shipped from an intermediary we cannot audit.
Lot traceability
The lot number on your vial matches your packing slip and the published report. One material, one record, no substitutions.
Same-day dispatch
Orders confirmed before 2 PM ET leave the same business day, in unmarked crush-resistant packaging with tracking.
Answerable support
Technical questions about purity, identity, solubility and stability are answered by staff who can read the chromatogram.
Honest positioning
We sell laboratory reference materials. We do not make health claims, we do not publish dosing guidance, and we will decline to.
No dark patterns
No countdown timers, no fake scarcity, no invented testimonials. The catalog, the price and the data are what they appear to be.
Where the material comes from
Our peptides are produced by solid-phase synthesis at cGMP-registered facilities and purified by preparative reverse-phase HPLC. Incoming lots are quarantined on arrival, sampled, and released only after the full assay panel returns within specification. Lots that fail are rejected outright — not repriced, not sold as a lower grade.
Retention samples from every released lot are held under controlled storage for the life of the retest window, so any result generated from our material can be traced back to a physical reference.
| Synthesis method | Solid-phase (SPPS) |
|---|---|
| Purification | Preparative RP-HPLC |
| Purity specification | ≥ 99.0% (214 nm) |
| Identity method | ESI mass spectrometry |
| Endotoxin specification | < 0.25 EU/mg |
| Retention samples | Held to retest date |
| Release authority | Independent third-party lab |
| Facility | cGMP-registered |
Research Use Only. Amino Health Sciences supplies chemical reference materials for laboratory research · Not for human or veterinary use