Senna is the dried leaflet and pod of Cassia angustifolia Vahl, and it is one of India's highest-volume botanical exports. Buyers are pharmaceutical formulators, herbal tea packers and sennoside extract manufacturers.

Botanical identity

Cassia angustifolia Vahl belongs to the Fabaceae family. The accepted botanical name is now Senna alexandrina Mill., and both names appear on trade documents.

In commerce, material from India is called Tinnevelly senna. Material of North African origin is called Alexandrian senna and comes from a related population. Pharmacopoeial monographs cover both, but the leaf shape and sennoside profile differ, so state which one your specification requires.

Rajasthan and the Indian senna belt

Senna cultivation has moved west over recent decades. Rajasthan and Gujarat now produce the bulk of Indian senna, with Tamil Nadu still active around the original Tirunelveli region.

Inside Rajasthan, the crop is concentrated in the arid districts of Jodhpur, Pali, Barmer, Jalore and Nagaur. Sojat and Jodhpur function as the main assembly and processing hubs for the trade.

AV Biotech operates from Jaipur, inside this producing state. That places us on the same side of the supply chain as the growers and the grading yards, rather than buying finished lots from a distant market.

Harvest and processing

Senna is a dryland crop that tolerates poor soils and low rainfall. Leaves are stripped in two or three picking rounds as the crop matures, and pods are collected after the leaf harvest.

Material is sun-dried in the field, then threshed, sieved and graded by leaf size and colour. Grading is done largely by hand and by mechanical sieving at the processing yard.

Sennosides degrade with heat and prolonged storage. Careful drying and correct moisture control at packing therefore have a direct effect on the assay a buyer receives at destination.

Why buyers source it

The commercial value sits in the sennosides, principally sennoside A and sennoside B. These are dianthrone glycosides and are the compounds every specification is written around.

Leaf lots commonly assay in the region of 2.5% to 3.5% total sennosides. Pods generally run higher and more uniform, which is why standardised extract manufacturers usually prefer pods.

Pharmacopoeial monographs require not less than 2.5% hydroxyanthracene glycosides calculated as sennoside B for senna leaf, so lot selection against that figure matters commercially.

Forms that trade

We supply whole leaf, graded bold and extra bold leaf, broken leaf, cut and sifted, tea-bag cut, powder, and whole or cut pods. Stems and sifting fractions also trade separately at lower value.

Industry applications of Senna

Senna serves several distinct buyer groups, and each buys a different cut. Naming your end use lets us match the grade instead of shipping a generic lot.

Pharmaceutical manufacturing

Pharma is the largest and most specification-driven segment. Manufacturers formulate senna into tablets, syrups, granules and powders positioned for occasional bowel regularity, under the applicable rules of each market.

These buyers usually want the higher leaf grades with the strongest sennoside figures. Grade No. 3 leaf has traditionally been directed to the pharmaceutical trade for exactly this reason.

Extract and sennoside manufacture

Extract houses convert senna into standardised leaf and pod extracts, and into isolated sennoside concentrates such as calcium sennosides. Assay drives the entire purchase decision here.

Pods are the usual feedstock because their sennoside content is higher and less variable than leaf. Extractors will often buy whole pods rather than cut material to reduce the risk of substitution.

Herbal tea and wellness beverage

Tea packers use tea-bag cut leaf in detox, slimming and bedtime infusion blends. This is a very large export segment for Indian senna.

Tea-bag cut is a fine, sifted cut sized to flow through tea-bagging machinery and brew evenly. Cut and sifted is coarser and goes into loose teas, further milling and extraction. Grade No. 5 leaf typically serves this herbal and tea-cut market.

Ayurvedic and Unani manufacturing

Senna is known as Swarnapatri in Ayurveda and Sana Makki in Unani practice. Manufacturers use powder in churna and safoof preparations, and coarse cut in kwath bases.

Cosmetic and hair care

A related use is neutral henna blending, where senna powder is added to henna and indigo systems as a conditioning, low-stain component. Cosmetic buyers here focus on fine mesh, clean colour and low grit rather than sennoside assay.

Common product formats

• Laxative tablets, syrups and effervescent granules
• Standardised senna leaf and pod extracts; calcium sennoside concentrates
• Tea bags, pyramid bags and loose herbal infusion blends
• Churna and safoof powders in Ayurvedic and Unani lines
• Neutral henna and hair-conditioning powder blends
• Capsules and sachets in supplement ranges

Traditional uses and current understanding

Senna has an unusually well-documented history for a botanical. It appears in Ayurvedic, Unani and Western herbal practice, and it holds monographs in several major pharmacopoeias.

Traditional positioning

Traditionally used in Ayurveda as Swarnapatri and in Unani practice as Sana Makki, in preparations intended to support bowel movement. Classical use was short-term and course-based rather than continuous.

Traditional formulations frequently pair senna with carminative herbs such as fennel, ginger or ajwain. That pairing was intended to moderate the griping effect, and modern blends often follow the same logic.

What the constituents do

The sennosides are the constituents behind senna's activity. Studies describe them as passing largely unchanged to the colon, where gut microflora convert them into active forms.

Because activity depends on this microbial conversion, response varies between individuals. This is one reason finished-product dosing is a formulation question rather than a raw-material question.

Pharmacopoeial monographs classify senna leaf and pod as stimulant laxative herbal substances and set a minimum hydroxyanthracene glycoside content on that basis.

How brands position finished products

Commonly formulated into products targeting occasional constipation, digestive comfort and short-term cleanse routines. Wording must follow the destination market's rules.

Several regulators restrict long-term or unsupervised use of stimulant laxative botanicals, and some have set specific limits on hydroxyanthracene derivatives in food supplements. Check the current position in each market you sell into before finalising label copy.

Points buyers should note

Senna is intended for short-term use in finished products, and traditional practice followed the same pattern. Formulators generally review suitability for pregnancy, for children and for people with existing bowel conditions before launching a consumer product.

Dose, duration statements and warning text are the manufacturer's responsibility and are usually the most scrutinised part of a senna product file.

This information is provided for educational and B2B product-sourcing purposes only. It is not medical advice and these statements have not been evaluated by any regulatory authority. Finished-product claims are the responsibility of the manufacturer.