Lab Results & Certificates of Analysis

Every Clair Lab product is independently verified by Janoshik Analytical — the gold standard for third-party peptide testing. All COAs are publicly accessible. We never put them behind a request form.

COA testing confirms compound identity and purity (≥99%). All Clair Lab products meet or exceed 99% purity standards.

Note: Clair Lab COAs are product-level tested, which is the industry standard for research peptide suppliers. Testing is performed on the compound, consistent with Popo-JKL’s quality assurance process.

GLP-1 & Metabolic Research Compounds

Product	SKU	Purity	Certificate of Analysis
Retatrutide 10mg / 20mg / 30mg	RT10 / RT20 / RT30	99%+	View COA →
Tirzepatide 10mg	TR10	99%+	View COA →
Semaglutide 10mg	SEM10	99%+	View COA →

Skin & Regenerative Research Compounds

Product	SKU	Purity	Certificate of Analysis
GLOW Blend 80mg (GHK-Cu + TB-500 + BPC-157)	GLOW	99%+	View COA →
GHK-Cu 50mg	CU50	99%+	View COA →
BPC-157 10mg	BC10	99%+	View COA →

Longevity Research Compounds

Product	SKU	Purity	Certificate of Analysis
MOTS-c 10mg	MOTS	99%+	View COA →

About Janoshik Analytical

Janoshik Analytical is an independent Czech Republic–based laboratory that specialises in peptide identity and purity testing using HPLC and mass spectrometry. It is widely regarded as the most reputable third-party testing service in the research peptide industry. Every COA linked above is publicly verifiable directly on the Janoshik website — no login required.

All Clair Lab products are for Research Use Only. COAs verify compound identity and purity and do not constitute approval for human use.