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?100% natural, wild-sourcedHand-selected and naturally sun-driedDistinctive gold to brown coloration with clear textureEach piece varies in shape: oval, spherical, triangular, or irregularFirm structure with glossy surface and natural fragranceAvailable in different ages and bilirubin percentagesAppearance CharacteristicsDiameter: approx. 0.6–3 cm (some up to 4.5 cm)Shapes: oval, spherical, triangular, rectangular, tubular, or fragmentsSurface: golden yellow to brown, glossy, sometimes with wart-like texture or natural cracksCross-section: bright golden yellow, fine texture, clear formation linesAroma: mild natural fragranceTaste: slightly bitter, naturally dry with low moisture contentAvailable Variants / Options10-Year Wild Inner Mongolia Calculus Bovis1 g (Bilirubin ~80%)5 g (Bilirubin ~80%)10 g whole piece (Bilirubin ~80%)8-Year Wild Inner Mongolia Calculus Bovis1 g (Bilirubin ~60%)5 g (Bilirubin ~60%)10 g whole piece (Bilirubin ~60%)5-Year Wild Inner Mongolia Calculus Bovis1 g (Bilirubin ~40%)5 g (Bilirubin ~40%)10 g whole piece (Bilirubin ~40%)StorageStore at room temperature, dry and ventilated placeAvoid direct sunlightOriginInner Mongolia Autonomous Region, ChinaShelf Life5 years (properly stored)PackagingPacked as raw natural farm productSealed and protected for international shippingFree Worldwide ShippingWe 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.
