Description
COA-BACKED BOTANICAL INGREDIENT
Plantago major Leaf Extract
Plantain Leaf Extract Powder 4:1 is presented for B2B ingredient qualification using representative batch evidence and batch-specific analytical language.

COA-Backed Specification
| Botanical identity | Plantago major |
|---|---|
| Plant part | Leaf |
| Form and colour | Fine dark-brown powder |
| Assay | Extract ratio 4:1 by TLC; result complies |
| Particle size | 98% through 80 mesh |
| Loss on drying | <=5.0%; result 4.63% |
| Ash | <=5.0%; result 4.21% |
| Representative batch | LXCQ211020 |
| Manufacture date | 20 October 2021 |
| Shelf life | Two years when stored properly |
Representative values do not replace the current shipment COA.

Buyer Decision Guide
Treat Plantain Leaf Extract Powder 4:1 as a ratio-defined grade (Extract ratio 4:1 by TLC; result complies). A ratio communicates the input-to-output relationship and should not be read as an active-compound percentage.
- Evaluation sample typically 10-20 g
- Regular MOQ typically 1 kg
- Typical lead time 7-15 working days

How This Grade Differs
Plantain Leaf Extract Powder 4:1 is qualified using botanical identity: Plantago major; plant part: Leaf; offered grade: Extract ratio 4:1 by TLC; result complies. This grade is separated from raw leaf powder and marker-standardised extracts by its ratio specification: Extract ratio 4:1 by TLC; result complies.
Compare these related grades before approval:
For a substitution review, compare botanical identity, plant part, assay target, analytical method, physical form and the current offered-batch COA.
Quality and Documentation
Representative batch LXCQ211020 supports the specification table above. Confirm current batch results before release; the representative record remains supporting context rather than a shipment guarantee.
Frequently Asked Questions
What specification defines Plantain Leaf Extract Powder 4:1?
For Plantain Leaf Extract Powder 4:1: Extract ratio 4:1 by TLC; result complies.
How can buyers avoid a plant-part substitution?
For Plantain Leaf Extract Powder 4:1: Use Plantago major, Leaf as the identity checkpoint, then confirm that the sample and commercial documents describe the same material.
Does the example batch replace shipment testing?
For Plantain Leaf Extract Powder 4:1: The page cites representative batch LXCQ211020. Use it as an example of the tested grade, not as the release record for a future shipment.
How is the current COA used in purchasing?
For Plantain Leaf Extract Powder 4:1: Request the current COA before issuing approval so the offered lot can be checked against the agreed identity, grade and limits.
What should buyers compare beyond the headline assay?
For Plantain Leaf Extract Powder 4:1: Technical acceptance should cover identity, grade-defining data, physical quality and the safety tests required for the intended market.
Do stock and testing affect the lead time?
For Plantain Leaf Extract Powder 4:1: The quotation should state the applicable MOQ, pack format and lead time after current inventory and testing needs are reviewed.
How are custom packing requests evaluated?
For Plantain Leaf Extract Powder 4:1: Discuss pack format and relevant physical parameters before quotation; feasibility and any MOQ effect are confirmed for the exact request.
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