Certificate of Analysis

Independent Lab-Verified Quality You Can Trust

At Yuansense Tech, we believe every customer deserves full visibility into product quality. That is why we provide an official Certificate of Analysis (COA) with every batch — independently tested and issued by Janoshik Laboratory.

What a COA Means for You

A Certificate of Analysis is an independent, third-party document that confirms the identity, strength, purity, and quality of a product. Unlike self-reported specifications, a Janoshik-issued COA is generated by an accredited laboratory using validated testing methods.

Key Benefits of Our COA System

• Guaranteed Purity — Each COA reports exact assay results and impurity profiles, giving you objective proof that the product meets your specifications, batch after batch.
• Full Batch Traceability — Every report includes the task number, sample description, batch code, and testing dates. You can trace exactly what was tested, when, and under what conditions.
• Regulatory Confidence — Janoshik COAs support quality management systems and help satisfy requirements for GMP compliance, ISO standards, customs clearance, and international trade documentation.
• Public Verification at Any Time — Every COA features a unique verification key. You can authenticate the report directly at www.janoshik.com — no login required. This means you can verify test results before purchase and confirm authenticity at any point after receipt.
• Published Before Purchase — We make our COAs available publicly on this page, so you can review the exact test data for your product — not just marketing claims.