Authentic Wild Natural Calculus Bovis (Niu Huang)
Our Niu Huang comes directly from trusted local suppliers in the Inner Mongolia grasslands, where cattle graze freely in natural environments. These pieces are naturally formed gallstones, carefully collected, cleaned, and dried without chemical treatment.
Why Choose Our Niu Huang?
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100% natural, wild-sourced
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Hand-selected and naturally sun-dried
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Distinctive gold to brown coloration with clear texture
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Each piece varies in shape: oval, spherical, triangular, or irregular
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Firm structure with glossy surface and natural fragrance
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Available in different ages and bilirubin percentages
Appearance Characteristics
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Diameter: approx. 0.6–3 cm (some up to 4.5 cm)
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Shapes: oval, spherical, triangular, rectangular, tubular, or fragments
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Surface: golden yellow to brown, glossy, sometimes with wart-like texture or natural cracks
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Cross-section: bright golden yellow, fine texture, clear formation lines
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Aroma: mild natural fragrance
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Taste: slightly bitter, naturally dry with low moisture content
Available Variants / Options
10-Year Wild Inner Mongolia Calculus Bovis
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1 g (Bilirubin ~80%)
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5 g (Bilirubin ~80%)
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10 g whole piece (Bilirubin ~80%)
8-Year Wild Inner Mongolia Calculus Bovis
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1 g (Bilirubin ~60%)
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5 g (Bilirubin ~60%)
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10 g whole piece (Bilirubin ~60%)
5-Year Wild Inner Mongolia Calculus Bovis
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1 g (Bilirubin ~40%)
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5 g (Bilirubin ~40%)
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10 g whole piece (Bilirubin ~40%)
Storage
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Store at room temperature, dry and ventilated place
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Avoid direct sunlight
Origin
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Inner Mongolia Autonomous Region, China
Shelf Life
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5 years (properly stored)
Packaging
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Packed as raw natural farm product
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Sealed and protected for international shipping
Free Worldwide Shipping
We provide free global shipping with reliable international carriers.
Tracking is included for all orders.
Q&A Section
Q1: Is this Calculus Bovis natural?
Yes, all pieces are naturally formed in cattle from the Inner Mongolia grasslands. No artificial or synthetic materials are added.
Q2: Why do the shapes and sizes vary?
Because Calculus Bovis forms naturally inside cattle, each piece is completely unique in size, shape, and texture.
Q3: What does “5-year / 8-year / 10-year” mean?
It refers to the approximate natural age and drying period of the material, as well as differences in bilirubin content.
Q4: Do you ship worldwide?
Yes. We provide free worldwide shipping with tracking.
Q5: How do you package the product?
Each order is securely sealed, protected, and packaged as a raw natural product to ensure safe international delivery.
Q6: Can the color be different from the photos?
Minor color variations are normal due to natural formation and differences between individual pieces.
