Understand the source comparison
Epithalon Real vs Fake: Supplier Verification Comparison
Third-Party CoA Provided for every batch with unique lot number matching product label In-house testing only, or generic CoA reused across multiple batches Third-party verification eliminates conflict of interest. In-house testing cannot be independently valid
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Third-Party CoA
- Provided for every batch with unique lot number matching product label
- In-house testing only, or generic CoA reused across multiple batches
- Third-party verification eliminates conflict of interest. In-house testing cannot be independently validated
- HPLC Purity
- ≥98% with chromatogram trace showing single dominant peak and minimal baseline noise
- 90–95% reported without chromatogram, or chromatogram showing multiple secondary peaks >2%
- Purity below 98% introduces uncontrolled variables. Secondary peaks indicate synthesis errors that compromise biological activity
- Mass Spectrometry
- Molecular weight confirmed within ±0.5 Da of theoretical 426.18 Da for epithalon
- Mass spec data absent, or molecular weight deviates >1 Da from theoretical value
- Without mass spec, you cannot confirm the peptide is epithalon. HPLC alone cannot differentiate amino acid substitutions
- Endotoxin Testing
- LAL assay results <1 EU/mg for in vitro use, <0.5 EU/mg for animal studies
- Endotoxin testing not performed or not reported
- Bacterial endotoxins trigger immune responses that invalidate experimental results. Absence of this test disqualifies the batch
- Storage & Shipping
- Shipped with cold packs, stored at −20°C, desiccant packets included
- Shipped at ambient temperature without cold chain documentation
- Temperature excursions above 8°C cause irreversible peptide degradation. Lack of cold chain renders CoA irrelevant
- Batch Traceability
- Lot numbers traceable to specific synthesis date and third-party lab reports
- No lot number system or recycled lot numbers across products
- Traceability allows verification of which specific batch a CoA corresponds to. Without it, CoA could reference a different product