Two quotes for “bhringraj extract” can mean very different materials — an unstandardised ratio powder versus a wedelolactone-standardised grade — and the two are often measured by different methods. This guide explains how to read the number and the method behind it.
Bhringraj (Eclipta prostrata, synonym Eclipta alba) is one of the most traded hair-care botanicals from India, yet the way its potency is declared is far from uniform. Much of the material on the market is unstandardised, and where a figure is given, the assay method behind it is not always stated. For a buyer, the number is only as meaningful as the method that produced it.
The Marker Problem
A large share of the bhringraj traded as “extract” is effectively an unstandardised powder or ratio concentrate with no declared active. The natural marker of the plant, wedelolactone (a coumestan), is present at low levels and is not routinely measured unless the specification calls for it. Without a marker on the CoA, one supplier's “bhringraj extract” cannot be compared with another's on any objective basis. For the science behind the marker, see our wedelolactone research overview.
Ratio (10:1) vs Standardised Grades
There are two distinct ways bhringraj is offered:
- Native ratio extract (10:1): a full-spectrum concentrate that carries the whole plant matrix — coumestans, saponins, flavonoids — in roughly natural proportions. It expresses a concentration ratio, not a guaranteed active percentage.
- Wedelolactone-standardised grade: a material adjusted (enriched) to a defined wedelolactone percentage measured by HPLC. This is the grade to specify when batch-to-batch consistency of the marker matters.
Neither is inherently “better” — they serve different formulation needs — but they are not interchangeable, and a price comparison across the two is meaningless without the assay.
HPLC vs UV for Wedelolactone
HPLC separates and quantifies wedelolactone specifically, against a reference standard, so the figure reflects that one compound. A UV / colorimetric assay reads total absorbance and can over-read, because other co-absorbing polyphenols in the extract contribute to the signal — inflating an apparent “wedelolactone” number that is really a mixed reading. As a rule, require the method printed next to the figure: a wedelolactone percentage with no method is not a specification.
Buyer tip: a UV-based “2% wedelolactone” is not automatically equal to a 2% figure by HPLC. Compare grades only when both are measured by HPLC against a wedelolactone reference standard.
Why the Percentage Is Low — and What “Enriched” Means
Because wedelolactone occurs at low natural levels in the plant, a native extract carries only a small amount of it. Standardised grades reach 1%–2.5% (and higher on request) by enrichment — concentrating the wedelolactone fraction so the marker sits at a defined, repeatable level. This is why the HPLC percentage is the meaningful quality differentiator between suppliers: it reflects real enrichment and real analytical control, not marketing.
| Grade | Typical wedelolactone content | Common use |
|---|---|---|
| Native 10:1 (full-spectrum) | Native (not enriched, ratio) | Traditional-style hair oils, holistic blends |
| Standardised 1% | 1% wedelolactone (HPLC) | Cosmetic & supplement formulas |
| Standardised 2.5% | 2.5% wedelolactone (HPLC) | Higher-potency, dose-controlled |
| Enriched (on request) | >2.5% wedelolactone (HPLC) | Tight-spec / actives-led products |
Reading the CoA
A batch Certificate of Analysis for bhringraj should carry the wedelolactone figure with its method (HPLC) and the reference standard used, plus a botanical identity test by TLC / HPTLC to confirm true Eclipta prostrata and rule out the yellow-flowered substitute Wedelia chinensis (“peela bhringraj”). Watch for a wedelolactone number quoted without a method, or identity shown as “complies” without a chromatographic profile.
To set the full specification, read the bhringraj extract buyer's guide; to specify finished material, see the Bhringraj Extract product page.
Standardise Bhringraj the Right Way
Native 10:1 · wedelolactone 1%–2.5% by HPLC · identity by HPTLC · batch CoA