The Astral Index
The quiet standard in research-grade peptides.
A small-batch house of high-purity research peptides — each one third-party tested and accompanied by the certificate that proves it.
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Every batch, on the record
We don't ask you to take purity on faith.
Every lot is analyzed by an independent laboratory using reverse-phase HPLC for purity and mass spectrometry for identity. The results ship with the vial — a Certificate of Analysis tied to the exact batch number on your label.
- HPLC purity — quantified to one decimal, per lot
- Mass-spec identity — molecular weight confirmed
- Sterility & endotoxin — screened before release
Example: BPC-157 · 5 mg
Illustrative layout · not a released lot record
| Test method | RP-HPLC / ESI-MS |
|---|---|
| Appearance | White lyophilate |
| Identity (MS) | 1419.5 — confirmed |
| Purity (HPLC) | 99.1% |
| Water content | 4.2% |
| Endotoxin | < 0.5 EU/mg |
| Net peptide | 5.0 mg |
This example explains how to read a result. Open the COA library for current released certificates.
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Everything you order, on the record.
Lot-specific COAs, current availability, and clear pricing — review the evidence before you order.