
Natural Herbal Plant for Beverage Food Grade Blue Color Indigo Powder Pigment. Natural Food Grade Source: 100% natural indigo powder from GAP-standard cultivation bases with stable supply. Flexible OEM & ODM Services: Custom solutions available for capsules, tablets, softgels, granules, and private labels. Strict Quality Control: Certified by National Commodity Inspection, third-party labs, ISO, Halal, and Kosher standards. Free Sample Availability: 20-50g samples provided free of charge for trial and quality verification. High Purity Content: Product content ranges from 80% to 98% with moisture content under 5%. Fast Delivery Time: Standard lead time is within one week after payment confirmation. Long Shelf Life: Products maintain quality for 24 to 36 months when stored properly.