Bilirubin
0.0%
Main quality marker · dry basis
Natural bovine gallstone牛黄 Niú Huáng
Brazilian natural bovine gallstone, graded lot by lot and analyzed to the Chinese Pharmacopoeia, supplied to the pharmaceutical industry across Asia and the world.
IRarity
Some treasures are mined. Others are cultivated. Ours is neither. It forms slowly, silently, inside the gallbladder of a rare few cattle: a small golden sun that Chinese medicine has prized for more than two thousand years. No induction. No synthesis. Time creates it. Science confirms it.
IIHeritage
Recorded in the Chinese Pharmacopoeia for over two millennia, bovine gallstone is one of the rarest and most valuable ingredients in Eastern medicine. It forms naturally in the gallbladder of cattle, and not every animal forms one.
Its scarcity is structural. That is why provenance, purity and documentation matter more than anything else.
Where it goes
IIIProof
Every parameter follows the Niuhuang monograph of the Pharmacopoeia of the People's Republic of China, 2025 edition. Bilirubin, the main quality marker, came in 30% above the required minimum.
Bilirubin
0.0%
Main quality marker · dry basis
Conjugated cholic acids
0.0%
2.6× the required minimum
Moisture
0.0%
Controlled drying, no mold risk
Ash
0.0%
Pure material, no foreign matter
Reference lot analyzed by an independent laboratory in Hong Kong, September 2026, under the Pharmacopoeia of the People's Republic of China, 2025 edition.
| Parameter | Standard | Result | |
|---|---|---|---|
| Description | Golden cross-section, fine concentric layers | Conforms | ✓ |
| Water content | ≤ 9.0% | 3.7% | ✓ |
| Ash | ≤ 10.0% | 7.7% | ✓ |
| Free bilirubin (inspection) | Below reference peak | Conforms | ✓ |
| Free cholic + deoxycholic acids | ≤ 8.0% | 2.9% | ✓ |
| Microscopic identification | Characteristic yellow-brown granules | Present | ✓ |
| Bilirubin identification (HPLC) | Peak matches reference | Present | ✓ |
| Taurocholic and glycocholic acids | Peak matches reference | Present | ✓ |
| Conjugated cholic acids (assay) | ≥ 4.0% | 10.5% | ✓ |
| Bilirubin (assay) | ≥ 25.0% | 32.6% | ✓ |
Conclusion: the sample complied with the Quality Standard.
IVJourney
Every step documented. Every detail preserved.

Cattle from partner slaughterhouses licensed by Brazil's Federal Inspection Service (SIF), in full sanitary compliance for export.

Manual, immediate extraction during processing, preserving the integrity and purity of the stone from first contact.

Ovens with controlled temperature and humidity. No preservatives, no additives, no risk of microbial contamination.

Hand-sorted by size, weight, color and visual purity: the criteria that define each stone's grade and value.

Stored under hygiene and quality protocols, analyzed in laboratory and documented with proof of life before shipping.

Sealed packaging with security tag and lot ID, and international logistics to the final destination.
VForms

Intact stones with preserved surface, graded by size, color and weight.

Natural fragments of the stone, with the same composition. Suited for extraction and industrial formulation.

Ground stone for direct formulation. Availability on request.
Choose form, color, size and volume. We answer with availability, certificate and proposal.
Lot specification
Route BR → HKG
Draft · not yet a quote
VIPromise
Partner slaughterhouses licensed by SIF, Brazil's highest level of sanitary certification and a requirement for export.
Concentrated bovine bile, dried in its pure state with nothing added. What we deliver is exactly what nature formed.
Ovens with controlled temperature and humidity. No additives, no chemical accelerators, no risk of mold.
Analysis to the Chinese Pharmacopoeia 2025 and complete technical documentation of origin and quality, available on request.
Photo or video of every lot before dispatch. You see exactly what you will receive.
Recurring supply capacity and dedicated logistics to Hong Kong, mainland China and the rest of Asia.
VIIProof of life
Before any lot leaves Brazil, you receive photos or video of the actual stones: weighed, counted and sealed. Not a catalogue image. Your lot.
Real lot photos. Drag them around.


VIIITwo suns
São Paulo and Hong Kong are eleven hours apart. While Brazil closes its day, Asia opens its own, and our supply keeps moving.
São Paulo 23.55° S · 46.63° W
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Hong Kong 22.32° N · 114.17° E
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IXQuestions
Commercial invoice, packing list, certificate of origin, the lot's certificate of analysis and the export documentation required by the destination country.
Yes. Every lot receives proof of life: photos or video of the actual stones, weighed and sealed, before dispatch.
Vacuum-sealed, with a security seal and lot identification, and packed for international transport.
Yes. Analyses follow the Niuhuang monograph of the Chinese Pharmacopoeia, 2025 edition. The full certificate is available on request.
It depends on the form and on current availability. Tell us what you need and we will reply with what we can supply, and when.
Our main route is Hong Kong and mainland China, with shipments to other Asian markets on request.
XContact
Tell us what you need: form, volume and destination. We reply with availability, certificate and proposal within one business day.
www.globalgallstones.com