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Senna alexandrina, Cassia angustifolia, Cassia senna, Cassia acutifolia

Need to speed things along? Senna is used for just that. This herbal laxative is an herbaceous way to relieve occasional constipation.*

Common Name Senna, Alexandrian Senna
Family Name Fabaceae
Parts Used Leaf, Pod, Aerial Parts
Herbal Actions Stimulant, Laxative
Health Benefits Digestion, Laxative

The herbal laxative to help things move.

What are the Benefits of Senna?

Whether you’re traveling, tense, or just simply need to go number two, the benefits of senna tea are incomparable. You might be wondering, “What does senna do to your body?” Senna leaves and pods contain unique herbal compounds called sennosides that produce laxative effects to relieve occasional constipation.* They work by gently stimulating your intestines and aiding your body’s natural elimination process thus increasing transit time and motility.*

As herbalists, we insist on using the whole plant, rather than an extraction of a single chemical compound. The leaves and pods of the plant contain higher amounts of sennosides, which is why we always use aerial parts of the plants and insist on regular testing. These unique compounds are crucial in making your number twos finally feel like a number one priority!

Given its effects, its best to take senna right before bed so that you don’t have to go when you’re out and about. It generally takes 6-12 hours to kick in, giving it enough time to work its magic while you’re comfortably in dreamland.*

Folklore & Historical Use of Senna

The medicinal uses of senna have been documented since around the 9th century AD by Arabian physicians. More recently, its residue has been found in Egyptian pottery jars dating to about 3150 BCE. While we generally consume this herb as tea, ancient artifacts suggest senna was preserved and used as a medicated wine, and taken as powders, decoctions and syrups before that time. Arabian physicians are credited for bringing senna into the European medical system, and since then, many formulas have been made to round out senna’s stimulating effects.

Botanical Description & Habitat

While there are many plants under the common name “senna,” the names Cassia angustifolia, Senna alexandrina, Cassia senna and Cassia acutifolia are used synonymously within the scientific community to refer to the one most commonly utilized in herbal medicine. “Cassia” derives from the Greek word kasia, which means “aromatic shrub.” Its common name “senna” originates from the Arabic word sanaa, which means “thorny bush,” along with sana in Persian and sena in Urdu. It’s also part of the Fabaceae family, making it a relative and somewhat lookalike to everyday peas and beans.

Where most plants struggle, senna thrives. This drought-tolerant shrub is ideal for desert ecosystems that need dune stabilization and have low annual rainfall. While originally from North Africa and still thriving and commercially grown along the Nile, it’s now naturalized in India, currently known as the world’s largest senna-producing country.

When To Use Senna


Consume before bed for movement by morning.


Keep on hand for when things come to an unexpected halt.

The Business of Sustainable Plants

Our business is rooted in plants, and for us, it’s a business imperative that we care for the ecosystems where these plants live and thrive. We believe that everything is interconnected, which means supporting ecosystems and the farmers and collectors who harvest and gather our herbs. Finding opportunities to reduce or eliminate emissions at the source, we support organic and regenerative farming practices as well as voluntary certifications like Organic and FairWild. These ensure the absence of pesticides, herbicides, as well as the ongoing sustainability of wild collection, and the health and livelihoods of the collectors who forage. Josef Brinckmann, Traditional Medicinals’ Research Fellow, Medicinal Plants and Botanical Supply, asserts, “Everyone has a role to play in preserving biological diversity. One way of doing that is by equitably supporting the local people to serve as stewards of the land.”

It Starts with Organic

We choose to source organic because we believe in the positive impacts it has on environmental sustainability, biodiversity, and overall ecosystem health. Organic helps us increase transparency while prioritizing consumer well-being and farmer success, which is key to producing the high-quality herbs we source. In 2021, we procured 2.73 million pounds of certified organic herbs, over 99.7% of our total botanical herbs purchased. Volumes were down slightly from FY20 due to timing of inventories received.

The impact from organic farming creates a vital ecosystem through improved soil health, water quality, pollinator habitats, and biodiversity. Organic farms also have increased carbon sequestration potential through long-term carbon storage in the soil, helping to mitigate climate change.

One of the benefits of organic that we most value is farmer health. We care deeply about the people who produce our herbs, ensuring that they are not exposed to synthetic chemicals found in conventional agriculture.

Fair Trade

We believe that everyone deserves a fair wage for hard work. That’s one of the reasons why we’re committed to fair trade. Traditional Medicinals® is a registered Fair Trade “brand holder”, “licensee” and “manufacturer,” and our products are certified by Fair Trade USA, an independent third-party certifier. We were an early adopter of Fair Trade, having launched our first fair trade tea product in 1998, just one year after Fairtrade International (FLO) was established. We continue to work closely with our network of producers to help them to implement fair trade standards and get certified.

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Additional Information

Important Precautions:

Do not use if you have or develop diarrhea, loose stools, or abdominal pain because senna leaf extract may worsen these conditions and be harmful to your health. Consult your physician if you have frequent diarrhea or if you are pregnant, nursing, taking medication, or have a medical condition.

Do not use if you have ileus, intestinal obstruction, intestinal stenosis, atonic bowel, acute intestinal inflammation (e.g., Crohn’s disease, ulcerative colitis), appendicitis, abdominal pain of unknown origin, severe dehydration states with water and electrolyte depletion. Do not use if you have known allergies to plants of the parsley (Apiaceae) family.

Legal Disclaimer:

The information and other content in this article are designed to provide a general overview of the botany, cultural history, and traditional uses of this herb. It is not intended and should not be construed as health advice. Every person is unique and you should consult with your health care provider before using any herbal product or supplement.