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Third-Party Verified AnalyticsISO/IEC 17025 Tested

Certificates of Analysis & Analytical Standards

Every compound distributed by L’Essence Bio undergoes multi-stage chromatographic separation, mass spectrometry verification, and blind third-party audits before release.

Labdoor Certification
Accredited Testing

NADVance® NAD+ Precision Pen Batch Audit

Full-panel independent laboratory audit confirming purity assays via HPLC, endotoxin limits, sterility assurance, particulate matter compliance, and structural integrity.

Assay: 99.4% PassSterility: SterileEndotoxins: <0.01 EU/mg
NADVance NAD+ Pen Official Kit

CORE ANALYTICAL METHODOLOGIES

Assay > 99%

High-Performance Liquid Chromatography (HPLC)

Separates and isolates individual chemical species in a pressurized column, verifying absolute chemical purity standards exceeding 99.0%.

Validated Protocol Specification
Exact Mass Identity

Electrospray Ionization Mass Spectrometry (ESI-MS)

Measures molecular mass-to-charge ratio with single-dalton resolution, certifying the exact peptide molecular weight and amino acid sequencing.

Validated Protocol Specification
Pass (<0.05 EU/mg)

Endotoxin Testing (Turbidimetric LAL)

Quantifies bacterial endotoxins to guarantee ultra-clean standards strictly below pharmaceutical-grade research limits (< 0.05 EU/mg).

Validated Protocol Specification
Verified by Labdoor

Independent Labdoor Batch Validation

Third-party blind testing conducted by Labdoor in ISO/IEC accredited laboratories, verifying label accuracy, sterility, and absence of heavy metals.

Validated Protocol Specification
Lot-Specific Verification

How to Request a Lot-Specific Batch Certificate

Every dispatched vial, powder aliquot, or device cartridge carries an embossed or printed Lot/Batch Number on the secondary and primary packaging (e.g., LOT-NAD-2026-B04).

STEP 01

Locate Batch Code

Find the 8-12 character code printed on the vial label or packaging base.

STEP 02

Contact Operations

Message our laboratory desk or email compliance@l-essence.com.

STEP 03

Receive PDF Assay

Instant dispatch of the raw analytical chromatogram and spectral data.

Request CoA via WhatsAppAverage response time: < 2 hours