| Not official USP-NF text | ||||
| POWDERED ST. JOHN'S WORT EXTRACT | ||||
| PF | LGS# | Brand | Type of Test | Additional Information |
| 26(2) | L1 | Vydac C-18 | Content of . . . . . . . . | 4.6-mm x 25-cm, 5-µm. Manuf: Separations Group. Col used in the test Content of hypericin/pseudohypericin. |
| 26(2) | L1 | Vydac C-18 | Content of . . . . . . . . | column 201 TP 54, 4.6 x 25 cm, manuf. Separations group, content of hypericin and pseudohypericin |