Description
LIPOSOMAL DELIVERY INGREDIENT
Liposomal Quercetin Powder
Liposomal Quercetin is supplied as a phospholipid-encapsulated powder for formulators who need the active dispersed in a lipid bilayer rather than as a free crystalline solid. This grade is offered as a B2B raw material: 50% quercetin of the active on a phospholipid carrier, produced by thin-film hydration followed by high-pressure homogenisation and spray drying. It is intended for further processing by the buyer (capsules, stick packs, sachets, liquid or powder blends). The material is characterised by phospholipid identity, particle-size distribution and encapsulation-related parameters rather than by crystallinity, so the specification below is written accordingly.
COA-Backed Specification
| Ingredient system | Liposomal Quercetin (phospholipid bilayer encapsulation) |
|---|---|
| Form and colour | Fine yellow powder |
| Assay | 50.0% |
| Method | HPLC |
| Particle size | 98% through 80 mesh |
| Loss on drying | <=5.0% |
| Ash | <=5.0% |
| Heavy metals | Within the limits of the approved specification |
| Microbiological limits | Within the limits of the approved specification |
| Representative batch | LXLP260412 |
| Manufacture date | 12 Apr 2026 |
| Shelf life | Two years when stored properly |
Representative values do not replace the current shipment COA.
Buyer Decision Guide
Liposomal grades are specified differently from plain powders. Buyers should agree on three things before approval: the carrier system (phosphatidylcholine from sunflower or soy lecithin, or a synthetic phospholipid), the declared active content of the encapsulated system, and the dispersion behaviour in the buyer’s own matrix. Confirm the intended final dosage form at enquiry stage.
- Active content: 50% quercetin on a phospholipid carrier, expressed on the encapsulated system rather than on total powder mass.
- Carrier declaration: phosphatidylcholine source and phospholipid content are stated on the COA for identity control.
- Particle size: micro-dispersible powder, specification agreed against the dispersion test the buyer will run.
- Dispersion: designed to disperse in water and in oil-free aqueous matrices; evaluate in your own base before scale-up.
- Handling: hygroscopic, sensitive to heat and oxygen; keep sealed, cool and dry, and open only under controlled conditions.
- This material is a raw material for further processing, not a finished consumer product.
How This Grade Differs
Liposomal Quercetin is not interchangeable with plain Quercetin powder on a weight-for-weight basis. The active is held in a phospholipid bilayer, so the declared content refers to the encapsulated system, and the material behaves differently in dispersion, taste masking and flow. Buyers comparing quotations should normalise on the active content stated on the COA, not on the price per kilogram of powder.
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.
Application Areas
- Hard capsules and two-piece capsule filling
- Stick packs and single-serve sachets
- Powder blends and dry mixes
- Beverage and liquid concentrate systems, subject to the buyer’s process validation
Packaging and Delivery
- Evaluation sample typically 10-20 g, subject to stock
- Regular MOQ typically 1 kg
- 1 kg foil bag or 25 kg fibre drum with inner food-grade liner
- Custom packing and private-label options subject to confirmation
- Typical lead time 7-15 working days after deposit
Quality and Documentation
Representative batch LXLP260412 supports the specification table above. Use the cited record for preliminary comparison and request the offered-lot COA for final technical approval. Batch COA, specification sheet, agreed third-party testing and export documents are available for buyer verification.
Frequently Asked Questions
How is Liposomal Quercetin Powder 50% quantified?
By HPLC against the specification figure of 50.0%.
How recent is the representative batch shown?
The batch referenced is LXLP260412; your shipment is released on its own certificate rather than the representative one.
How long can we hold stock before use?
Two years when stored properly from the manufacture date when the pack stays sealed and dry.
What physical form does Liposomal Quercetin Powder 50% ship in?
Fine yellow powder, milled to 98% through 80 mesh.
What do you declare for moisture and ash?
Both are released against the limits on the approved specification; the measured result for your lot appears on its COA.
Are you a manufacturer or a trading company?
LongBio is Shaanxi Longsheng Biotechnology Co., Ltd., a direct manufacturer of botanical extracts and functional ingredients integrating R&D, production and export support. Factory review can be arranged by video or an on-site visit.
What is the minimum order quantity?
The regular MOQ is typically 1 kg. An evaluation sample of 10-20 g can usually be arranged before a formal order, subject to stock.
What packing options are available?
Standard packing is a sealed food-grade inner liner inside an export carton or fibre drum. Pack size, labelling and private-label artwork are agreed in the written specification.
Request COA, Sample or Quotation
Send your target specification, application, order quantity, destination country and required test limits.
Get the current batch COA, a sample or a quotation
