How to Qualify a Gotu Kola Supplier: A Scored Checklist

Three Disqualifying Red Flags

1. Will only report a total triterpene figure. As covered in our standardisation guide, the total is calculated from four individually measured compounds — so declining to report them is withholding data they already hold, not economising. It is the clearest possible signal.
2. Reports heavy metals as "complies" without numbers. On a wetland accumulator this is inadequate. You need per-element figures to make any judgement.
3. Uses "brahmi" in their documentation without a binomial. The name covers both Centella asiatica and Bacopa monnieri. A supplier writing it loosely is either indifferent to the ambiguity or has not encountered a buyer who cared.

The Scoring Framework

Weighted to 100 points, with heavy-metal control carrying 25 — higher than anywhere else in this series, and justified by the plant's wetland habit.

1. Triterpene Reporting — 25 points

2. Heavy-Metal and Provenance Control — 25 points

This section's weight is deliberate. Centella asiatica grows in damp ground and standing water and accumulates heavy metals from its environment, so provenance is a quality variable rather than a traceability nicety. A supplier who can describe where the herb grew — and better, who cultivates it — is controlling the risk rather than testing for it after the fact.

3. Species Identity — 20 points

The last two rows are comprehension checks. A supplier who raises either unprompted is engaged with this ingredient's actual failure modes.

4. Grade Capability — 15 points

5. Consistency, Compliance and Terms — 15 points

The three-batch comparison should cover metals as well as triterpenes on this ingredient. Metals figures that vary widely between batches indicate material drawn from differing collection sites — which is exactly the provenance risk you are trying to control.

Interpreting the Score

Apply a hard floor on section 2: below 15 of 25, decline. Triterpene composition is a commercial problem you can negotiate around; heavy metals in a wetland accumulator are not.

The Sample Stage

• Check the CoA lists all four triterpenes. Absent on the sample, absent on bulk.
• Check metals are numeric, not "complies".
• Check colour against the claimed grade. Whole-herb 10% is brown to dark green; high-assay and cosmetic grades are off-white to pale beige. A "cosmetic grade" that looks like whole-herb is not one.
• Ask where the herb was grown or collected. A supplier with a real answer has a real chain — and on this ingredient the answer is a safety input.
• Ask whether they also handle bacopa. Many Indian suppliers do; ask how the two "brahmis" are kept distinct in their documentation.
• Did they ask cosmetic or nutraceutical? Without knowing, no supplier can advise on which triterpene you need.

First-Order Protocol

1. Nominate an independent laboratory — Eurofins, SGS or Intertek — with heavy metals by ICP-MS and the four triterpenes individually in the scope. A total-only assay reproduces two blind spots simultaneously.
2. Treat the independent metals result as the primary finding on this ingredient, not a formality.
3. Compare the independent triterpene split against the supplier CoA and against your compound-specific minimum.
4. Retain a sealed, dated sample, stored dark given the colour sensitivity.
5. Re-verify at batch three, then annually — and always on a change of collection area, since provenance drives the metals profile.

SV Botanica reports all four triterpenes individually on every centella batch, tests heavy metals by ICP-MS with numeric per-element limits, declares collection status and species by binomial, and identifies against authentic reference material. Buyer-nominated third-party pre-shipment testing is welcome and encouraged. See the product page, the buyer's guide, or adulteration and authenticity.