Classification
Product TypeRaw Material
Product FormDried (Loose Leaf)
Industry PositionBotanical / Herbal Raw Material
Raw Material
Commodity GroupMedicinal and aromatic plant (herbal laxative botanical; herbal tea raw material)
Scientific NameSenna alexandrina Mill. (synonyms used in commerce/monographs include Cassia senna L., Cassia angustifolia Vahl, and Cassia acutifolia Delile)
PerishabilityLow (dried botanical leaf)
Main VarietiesAlexandrian senna (Cassia acutifolia), Tinnevelly/Indian senna (Cassia angustifolia)
Consumption Forms- Herbal tea infusion (dried leaf, loose or in tea bags)
- Extracts and standardised preparations used in herbal medicinal products and OTC laxative formulations
Grading Factors- Correct botanical identity (Senna alexandrina) and correct plant part (leaf/leaflet)
- Anthraquinone glycosides / sennoside content (marker-based potency expectations)
- Foreign matter / cleanliness after drying and comminution
- Microbiological quality (pathogen control) and contaminant compliance per destination-market requirements
Market
Loose-leaf cassia tea in global trade most commonly refers to dried senna leaf (Senna alexandrina; synonyms include Cassia senna and Cassia angustifolia) sold as a botanical infusion and as a raw material for laxative preparations. Commercial supply is historically associated with North/Northeast Africa (e.g., Egypt and Sudan) and large-scale cultivation in India, with product moving through herbal ingredient and OTC/herbal-tea channels. Market access and demand are highly sensitive to safety and regulatory scrutiny because senna contains hydroxyanthracene derivatives (anthraquinones) assessed by EFSA as presenting genotoxic/carcinogenic concerns in food uses, and because EU rules place Cassia senna leaf/fruit preparations containing these derivatives under Union scrutiny. As a result, pharmacopeial identity and potency standardisation (e.g., to sennosides/anthraquinones) and contaminant controls are central to international sourcing and buyer specifications.
Major Producing Countries- 이집트Historically associated origin for Alexandrian senna (Senna alexandrina) used medicinally.
- 수단Historically associated origin for Alexandrian senna (Senna alexandrina) used medicinally.
- 나이지리아Listed among source regions for Alexandrian senna in reference descriptions.
- 인도Key cultivation area for senna used for cathartic purposes (including material known commercially as Tinnevelly/Indian senna).
Specification
Major VarietiesAlexandrian senna leaf (Senna alexandrina; synonym: Cassia acutifolia), Tinnevelly/Indian senna leaf (Senna alexandrina; synonym: Cassia angustifolia)
Physical Attributes- Dried senna leaflets (loose leaf), commonly cut/comminuted for infusion or further processing
Compositional Metrics- Often standardised to a defined anthraquinone content in herbal medicinal preparations (sennosides/hydroxyanthracene derivatives)
- USP dietary-supplement monograph specifies Senna Leaf contains not less than 2.5% anthraquinone glucosides (calculated as sennosides) on a dried basis
Grades- Pharmacopeial/compliance grade (e.g., USP / EU herbal monograph-aligned identity and potency expectations)
- Buyer specifications commonly emphasise botanical identity, active-marker content (e.g., sennosides), and contaminant limits
Packaging- Bulk dried botanical packaging for ingredient trade (e.g., sacks/cartons) and downstream packing into loose-leaf retail units or tea bags
ProcessingPrimary traded form is dried and comminuted leaf; downstream uses include aqueous infusion (tea) and solvent extraction for standardised preparations
Supply Chain
Value Chain- Cultivation/collection -> leaf harvesting -> drying -> cutting/comminution -> cleaning/sieving -> identity & potency testing (e.g., sennosides/anthraquinones) -> packaging -> export to herbal ingredient processors / tea packers / OTC manufacturers
Demand Drivers- Use as a short-term stimulant laxative ingredient in herbal medicinal products
- Consumer demand for herbal infusions positioned for digestive/constipation-related uses (subject to regulatory constraints by market)
Risks
Regulatory Compliance HighSenna (Cassia) leaf preparations contain hydroxyanthracene derivatives that have been assessed by EFSA as raising genotoxicity/carcinogenicity concerns in food uses, and EU rules have placed preparations from the leaf or fruit of Cassia senna L. containing these derivatives under Union scrutiny. This creates a material risk of market-access restrictions, reformulation pressure, and heightened compliance burdens for cross-border trade in senna-based teas and supplements.Segment products by regulatory category (food vs herbal medicinal), monitor destination-market rules, and source pharmacopeial/standardised material with documented marker profiles and compliant labelling for intended use.
Food Safety MediumAs a dried botanical consumed as an infusion, senna/cassia tea can face microbial-contamination risks that may trigger recalls and disrupt brand and importer supply (e.g., Salmonella-related recalls reported for senna leaf herbal tea).Implement validated supplier food-safety programs (GMP/HACCP where applicable), require microbiological testing, and maintain full traceability and recall readiness.
Quality Variability MediumActive-marker levels (anthraquinone glycosides/sennosides) vary by botanical source and processing, and many regulated uses expect standardisation to defined anthraquinone content; inconsistent potency can create compliance and customer-acceptance risk.Contract to marker specifications (e.g., sennosides), use qualified labs for assay, and apply blending/standardisation controls where permitted.
Product Integrity MediumThe term “cassia” is used inconsistently across markets (e.g., could be confused with other Cassia/Senna materials or unrelated products like cassia/cinnamon), increasing the risk of mislabeling, substitution, and failed identity checks in regulated channels.Specify Latin binomial (Senna alexandrina) and plant part (leaf) on contracts/COAs, and use pharmacopeial identification methods and voucher-based supplier qualification.
FAQ
What plant is “loose-leaf cassia tea” typically made from in regulated herbal-tea and medicinal contexts?It is commonly senna leaf: the dried leaf of Senna alexandrina (synonyms include Cassia senna and Cassia angustifolia), which EMA describes as used in preparations including herbal tea.
Why does senna/cassia tea face higher regulatory risk than many other herbal infusions?Senna contains hydroxyanthracene derivatives (anthraquinone-type substances). EFSA concluded these raise genotoxicity/carcinogenicity concerns in food uses, and EU Regulation (EU) 2021/468 places Cassia senna leaf/fruit preparations containing these derivatives under Union scrutiny, increasing the chance of restrictions and additional compliance requirements.
What quality marker is often used to specify senna leaf in commerce?Sennosides (anthraquinone glucosides) are a common marker: the USP monograph for Senna Leaf specifies a minimum level of anthraquinone glucosides calculated as sennosides on a dried basis, and EMA notes senna leaf preparations are standardised to contain a defined amount of anthraquinones.