Wild Castor Seeds 500g Ricinus Communis Dried Bi Ma Zi Raw Herb for External Herbal Use

Castor Seeds, known in TCM as Bi Ma Zi (蓖麻子), from Ricinus communis. These whole dried seeds are sun-dried raw botanicals traditionally kept for external herbal applications and folk practice. In TCM theory they are considered pungent in flavor and associated with traditional external use only. This is a toxic seed not for eating or internal consumption. Store frozen in a sealed container away from children and pets.

Key Selling Points

• Whole dried castor seeds supplied as raw botanical material
• Botanical source Ricinus communis known in TCM as Bi Ma Zi
• Sun-dried processing with seeds kept whole and unprocessed
• Traditionally associated with external folk herbal applications
• Toxic seed clearly labeled not for eating or internal use

Quality & Sensory

Typically the seeds are glossy brown with mottled markings, smooth and hard to the touch, with an oval shape and a firm texture. They have a faint neutral seed aroma and are intended for external handling rather than tasting or brewing.

Technical Specifications

Usage Scenarios

• External folk herbal preparations prepared under qualified guidance
• Traditional topical applications using crushed or prepared seed material
• Herbal study and botanical reference collections
• Storage as a raw TCM material for external-use formulas

Traditional Uses

In traditional Chinese practice, Bi Ma Zi was historically applied externally, often crushed or processed into pastes and poultices for topical folk use. It was traditionally associated with external applications rather than internal decoctions, and classical texts emphasized its toxicity when taken orally. Traditional pairings included other external-use herbs in topical preparations. This seed is not suitable for teas, soups, or any ingestion.

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