Bitters Standardization & Grades
Bitters is a taste-defined class and not a single compound. In Eclipta alba the bitter-tasting fraction includes the coumestans wedelolactone and demethylwedelolactone, thiophene derivatives, and saponin-type compounds, together with flavonoids such as luteolin and apigenin glycosides. The botanical entity is Eclipta alba (L.) Hassk., and the extract is standardized to bitters because bitterness is the quality that separates a herb extract from a milled herb and the one formulators have to manage in a finished product.
| Grade | Assay & Method | Where It Fits |
|---|---|---|
| 1% Bitters | Class figure, no named method | Herbal blends, drink powders |
| 2.5% Bitters | Class figure, no named method | Capsules and tablets |
Grade choice follows bitterness and fill weight. The 2.5% grade is the stronger, more concentrated bitter extract and gives a smaller fill, while the 1% grade is milder, bulkier and keeps more of the herb’s green-brown matrix. Eclipta has no 10:1 extract or milled herb row in the catalog, so the standardized extract is the form to use when a bitters figure has to appear in the specification of the Eclipta alba extract.












