Table 2.
High-pressure liquid chromatography purity analysis of different palmitoylethanolamide sources a
| Product | PEA-m | PEA-um | PEA | PEA | PeaPure 400 mg | PeaVera 400 mg |
|---|---|---|---|---|---|---|
| Supplier | Epitech Group | Epitech Group | Cayman | Tocris Bioscience | JP Russell | JP Russell |
| Lot no. | 02/10 | 03/08 | 152055-51 | 3A/151360 | 12126A | 14A09H |
| Purity claimed | >98% | >98% | >98% | >98% | 100% | 100% |
| Purity found | 100.13% | 101.08% | 98.97% | 101.13% | 87.69% | 88.60% |
aPEA-m, Micronized palmitoylethanolamide; PEA-um, Ultramicronized palmitoylethanolamide. Values exceeding 100% are due to the precision of the analytical methods used. Assay specification limits are 98% to 102%.