Understand the source comparison
Real Peptides Mazdutide vs Competitors Quality: Full Comparison
HPLC Purity Verification ≥98% via dual-wavelength RP-HPLC (220nm + 280nm) 95–98% single-wavelength HPLC 'Research-grade' claim, no CoA provided 96% reported, batch-specific data unavailable Real Peptides' dual-wavelength method detects impurities competitors m
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- HPLC Purity Verification
- ≥98% via dual-wavelength RP-HPLC (220nm + 280nm)
- 95–98% single-wavelength HPLC
- 'Research-grade' claim, no CoA provided
- 96% reported, batch-specific data unavailable
- Real Peptides' dual-wavelength method detects impurities competitors miss
- Mass Spectrometry Confirmation
- MALDI-TOF + ESI-MS for every batch
- ESI-MS on request only
- No mass spec verification
- Mass spec available for fee
- Only Real Peptides includes mass spec as standard. Not an upsell
- Amino-Acid Sequencing
- Edman degradation confirms exact sequence
- Not performed
- Critical for dual-receptor agonists. Sequencing errors eliminate activity
- Endotoxin Testing
- <0.1 EU/mg via LAL assay
- <1.0 EU/mg
- Not tested
- Not disclosed
- Real Peptides' 10× stricter limit prevents immune confounds in metabolic studies
- Storage Protocol
- −20°C with desiccant, cold chain shipping, temp indicators
- Refrigerated shipping, no temp monitoring
- Room temp storage before shipping
- Unknown storage conditions
- Temperature excursions denature peptides. Real Peptides' protocol prevents this
- Batch-to-Batch Consistency
- ±0.8% purity variance across sequential batches
- ±3.2% variance observed
- Unknown. No historical data
- No consistency tracking
- Longitudinal studies require tight variance. Only Real Peptides tracks this