Description
B2B BOTANICAL INGREDIENT · SPECIFICATION & COA SUPPORT
Milk Thistle Extract Powder with 80% Silymarin
LongBio manufactures milk thistle extract powder standardized to 80% silymarin for B2B formulation. Buyers can verify the assay basis and current offered-lot COA before approving a sample or commercial order.
COA-Backed Specification
| Botanical identity | Silybum marianum (L.) Gaertn. |
|---|---|
| Plant part | Fruit |
| Form and colour | Fine yellow powder |
| Assay | Silymarin >=80% by UV; result >=82.19% |
| Particle size | 100% through 80 mesh |
| Loss on drying | <=5.0%; result 4.03% |
| Ash | <=5.0%; result 3.29% |
| Representative batch | LXSF230503 |
| Manufacture date | 3 May 2023 |
| Shelf life | Two years when stored properly |
Representative values do not replace the current shipment COA.
Buyer Decision Guide
Compare this standardised grade by Silymarin >=80% by UV; result >=82.19%, the stated method and the offered-lot result; raw material and ratio extracts are different purchasing specifications.
- Evaluation sample typically 10-20 g
- Regular MOQ typically 1 kg
- Typical lead time 7-15 working days
How This Grade Differs
Milk Thistle Extract Powder 80% Silymarin is qualified using botanical identity: Silybum marianum (L.) Gaertn.; plant part: Fruit; offered grade: Silymarin >=80% by UV; result >=82.19%. Its purchasing definition is anchored to Silymarin >=80% by UV; result >=82.19%; alternatives must be compared on marker target and analytical basis.
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 LXSF230503 supports the specification table above. Current lot evidence and buyer-defined verification govern acceptance of the commercial shipment.
Milk Thistle Extract Powder 80% Silymarin Qualification Snapshot
This snapshot is taken from the specification evidence displayed on this page. Confirm that the quotation, specification and current offered-batch COA describe the same grade before approval.
| Botanical identity | Silybum marianum (L.) Gaertn. |
|---|---|
| Plant part | Fruit |
| Assay | Silymarin >=80% by UV; result >=82.19% |
| Particle size | 100% through 80 mesh |
| Loss on drying | <=5.0%; result 4.03% |
Three Checks Before Ordering
- Match botanical identity and plant part.
- Match assay target, unit and analytical method.
- Review the current batch data and destination-market documents.
Continue with Standardized Botanical Extracts, the COA review checklist, or the specification comparison guide.
Silymarin Powder — Specifying the Flavonoid Complex
Application / Formulation Example: Milk thistle (Silybum marianum) silymarin extract is a staple in liver-support and detox formulations. Because "silymarin" is a complex of flavonolignans (silybin, silydianin, silychristin), specify the assay method and minimum content — common grades are 80% silymarin (UV) or silybin-standardized (HPLC).
Spec that protects you:
| Parameter | Example |
|---|---|
| Botanical | Silybum marianum |
| Part | Fruit/seed |
| Assay | Silymarin ≥ 80% (UV) or silybin by HPLC |
| Solvent | Water/ethanol — confirm residual solvents |
Formulation note: silymarin is poorly water-soluble; micronized or complexed grades (e.g. with phosphatidylcholine) are available for bioavailability-focused formulas.
Market context: liver-support remains a steady category; clear flavonolignan composition data supports regulatory and clinical claims.
Frequently Asked Questions
What specification defines Milk Thistle Extract Powder 80% Silymarin?
For Milk Thistle Extract Powder 80% Silymarin: Silymarin >=80% by UV; result >=82.19%.
How should the botanical identity be checked?
For Milk Thistle Extract Powder 80% Silymarin: Qualification starts with Silybum marianum (L.) Gaertn., Fruit. The product name alone is not sufficient when species, plant part or grade differs.
How should sample and shipment records be matched?
For Milk Thistle Extract Powder 80% Silymarin: The page cites representative batch LXSF230503. The sample, quotation and shipment COA should be traceable to the grade actually offered.
How can the offered grade be checked before purchase?
For Milk Thistle Extract Powder 80% Silymarin: Yes. The commercial review should use the COA for the lot being offered, together with the matching quotation and specification.
What evidence supports technical acceptance?
For Milk Thistle Extract Powder 80% Silymarin: Review identity and Silymarin >=80% by UV; result >=82.19% together with the listed physical tests and applicable contaminant and microbiological limits.
What can change the quoted lead time?
For Milk Thistle Extract Powder 80% Silymarin: Commercial timing is finalised after quantity, packaging, document set and any additional testing have been agreed.
Can buyers request an alternative pack configuration?
For Milk Thistle Extract Powder 80% Silymarin: Application-specific requests require technical review. Approved changes should be documented rather than treated as an informal substitution.
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