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Stillwater BioLabs
Lab Results

Every batch tested. Every result public.

We believe transparency is non-negotiable. Every product we ship comes with a batch-linked Certificate of Analysis from an independent third-party laboratory.

Our Testing Protocol

HPLC Analysis

High-Performance Liquid Chromatography separates and quantifies individual components in each batch. This determines the purity percentage—we require ≥99% for every product. The full chromatogram is included in every COA.

Mass Spectrometry

Mass spectrometry confirms the molecular identity of each compound by measuring its molecular weight. This ensures the product matches its expected chemical structure—not just in purity, but in identity.

What's in Every COA

HPLC Chromatogram
MS Identity Confirmation
Purity Percentage
Batch / Lot Number
Testing Lab Information
PDF Download Available

Sample Certificate of Analysis

Certificate of Analysis

BPC-157

Lot Number

SW-BPC-240301

Purity (HPLC)

99.4%

Identity (MS)

Confirmed

Molecular Weight1419.53 g/mol
AppearanceWhite lyophilized powder
Test Date2024-03-01
Testing LabIndependent Third-Party
PASS — Meets all specifications
Sample Only

Recent Batch Results

Sample results from our most recent production batches

ProductLot NumberPurityTest Date
BPC-157SW-BPC-24030199.4%2024-03-01
TB-500SW-TB5-24022899.2%2024-02-28
SemaglutideSW-SEM-24022599.6%2024-02-25
TirzepatideSW-TIR-24022099.3%2024-02-20
GHK-CuSW-GHK-24021899.5%2024-02-18
IpamorelinSW-IPA-24021599.7%2024-02-15

Questions about our testing?

We're happy to provide additional information about our testing protocols, laboratory partners, or specific batch results.