Understand the source comparison
Oxytocin Quality Real vs Fake: Research Comparison
The following table compares verified research-grade oxytocin against common counterfeit product characteristics across critical quality parameters. HPLC Purity ≥98% with single dominant peak 60–85% or multiple large peaks High-performance liquid chromatograph
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- The following table compares verified research-grade oxytocin against common counterfeit product characteristics across critical quality parameters.
- HPLC Purity
- ≥98% with single dominant peak
- 60–85% or multiple large peaks
- High-performance liquid chromatography with UV detection at 214nm
- Purity below 95% indicates presence of truncated sequences or synthesis byproducts—unacceptable for reproducible research
- Molecular Weight
- 1007.19 g/mol ±0.5 Da
- Incorrect mass or no detectable signal
- ESI or MALDI mass spectrometry
- Mass deviation >1 Da confirms incorrect amino acid sequence or degradation fragments
- Disulfide Bridge
- Intact cyclic structure verified by retention time
- Absent or incorrectly formed
- HPLC retention time comparison to reference standard
- Without correct disulfide bond, peptide cannot bind oxytocin receptors—biological activity approaches zero
- Reconstitution
- Complete dissolution in 30–60 seconds, clear solution
- Slow dissolution (>5 min), cloudiness, or particulates
- Visual inspection after adding bacteriostatic water
- Persistent cloudiness indicates aggregation from improper lyophilisation or presence of non-peptide material
- Storage Temperature
- −20°C from synthesis through delivery
- Ambient temperature shipping (20–25°C)
- Temperature data loggers during transit
- Each 10°C increase doubles degradation rate—ambient shipping causes 15–25% potency loss in 48 hours
- Documentation
- Batch-specific CoA with HPLC chromatogram, mass spec, endotoxin data
- Generic template or no CoA provided
- Verification of batch number match between vial and CoA
- Mismatched batch numbers prove documentation falsification