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Table 2 High-pressure liquid chromatography purity analysis of different palmitoylethanolamide sources a

From: Micronized/ultramicronized palmitoylethanolamide displays superior oral efficacy compared to nonmicronized palmitoylethanolamide in a rat model of inflammatory pain

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%
  1. 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%.