Xi'an Huilin Bio-Tech Co., Ltd. is one of the leading manufacturers and suppliers of senna leaf extract powder in China. With abundant experience, we are committed to providing high quality natural products with competitive price. Please feel free to wholesale bulk pure senna leaf extract powder for sale here from our factory.
Introduction
Senna Leaf Extract Powder is a concentrated, standardized extract derived from the leaves of the Senna plant, a leguminous shrub with a long history of medicinal use. It is recognized globally as a safe and effective stimulant laxative of natural origin. The therapeutic activity is attributed almost exclusively to its content of sennosides, anthraquinone glycosides that are metabolized in the colon to produce their laxative effect. Our extract is produced to meet exacting quality standards, providing manufacturers with a reliable, potent, and consistent raw material for formulating over-the-counter (OTC) laxative products, herbal supplements, and other targeted health formulations.

Specifications & Physicochemical Parameters
| Parameter | Specification / Description |
|---|---|
| Product Name | Senna Leaf (Cassia Angustifolia) Extract Powder |
| Latin Name | Senna alexandrina Mill. |
| Part Used | Dried leaflets |
| Extraction Method | Water or hydro-alcoholic extraction, purification, concentration, and spray drying. |
| Active Marker(s) | Total Sennosides (Sennoside A & B, quantified by HPLC) |
| Standard Specifications | Total Sennosides: 10%, 15%, 20% (USP-grade). Extract Ratios: 10:1, 20:1, 50:1. |
| Appearance | Fine, free-flowing brown powder. |
| Particle Size | 100% through 100 mesh |
| Loss on Drying | ≤ 5.0% |
| Heavy Metals | ≤ 10 ppm (Pb, As, Cd, Hg) |
| Microbiological | Total Plate Count ≤ 1000 CFU/g; Yeast & Mold ≤ 100 CFU/g; Absence of E. coli and Salmonella. |
| Solubility | Highly soluble in water for easy formulation into liquids, tablets, or capsules. |
Mechanism of Action: How Sennosides Work
The laxative effect of Senna is highly specific and localized to the colon, driven by the biochemical transformation of its primary active constituents, the sennosides.
- Prodrug Activation in the Colon: Sennosides themselves are not active. They pass through the upper gastrointestinal tract unchanged due to their glycosidic structure. Upon reaching the colon, resident bacterial enzymes hydrolyze the sugar molecules, converting sennosides into their active aglycone form, rhein anthrone.
- Stimulation of Colonic Motility and Secretion: The active rhein anthrone acts directly on the colonic mucosa. It has a two-pronged effect:
Stimulation of Propulsive Contractions: It stimulates the myenteric plexus, increasing colonic peristaltic waves (the coordinated muscle contractions that move stool forward). This significantly reduces colonic transit time.
Inhibition of Water & Electrolyte Reabsorption: It inhibits the normal reabsorption of water and electrolytes (like sodium and chloride) from the colon back into the body. This action increases the fluid volume within the colon, softening the stool and increasing its bulk.
- Onset of Action: This bacterial conversion process results in a typical onset of action within 6 to 12 hours after oral administration, making it suitable for overnight relief.
Key Benefits & Primary Uses
Senna Leaf Extract is indicated for the short-term relief of occasional constipation. Its standardization to sennosides ensures predictable and dose-dependent efficacy.
- Effective Relief of Occasional Constipation: Promotes bowel movement by stimulating colonic activity and increasing intestinal water content.
- Bowel Preparation: Used in clinical settings as part of bowel-cleansing regimens prior to colonoscopy or surgery, often in combination with other agents.
- Standardized Potency: Products formulated with standardized extract (e.g., 10% Sennosides) allow for precise dosing (e.g., 20 mg sennosides per tablet), improving safety and efficacy profiles compared to crude leaf powder.
- Natural Origin: Provides an effective laxative option derived from a botanical source, appealing to consumers seeking natural medicines.
Important Note: Senna is a stimulant laxative. Its benefits are for short-term use only (generally not exceeding 1-2 weeks without medical supervision). It is not intended for long-term daily use, weight loss, or "colon detoxification."
Primary Application Fields
A. Pharmaceuticals (OTC Medicines):
- Laxative Tablets & Caplets: Standardized-dose tablets (e.g., providing 8.6 mg, 15 mg, or 20 mg of total sennosides per unit).
- Granules & Oral Powders: For dissolution in water.
- Liquid Extracts & Syrups: Standardized senna leaf extract syrup formulations.
B. Dietary Supplements & Herbal Remedies:
- Herbal Laxative Capsules: Often combined with bulking agents like psyllium or stool softeners.
- Detox or Cleanse Formulas (for short-term use under specific protocols).
C. Functional Health Products:
- Herbal Tea Blends: Senna leaf tea is a traditional preparation, though standardized extracts offer more controlled dosing.

Formulation Reference: Suggested Dosage Equivalents
| Formulation Goal | Suggested Sennosides Content | Equivalent Extract Usage (for 20% Sennosides Extract) | Notes |
|---|---|---|---|
| Standard Adult Dose | 15 - 30 mg total sennosides | 75 mg - 150 mg of extract | Common daily dose range for OTC products. Onset in 6-12 hours. |
| Common Tablet Strength | 8.6 mg, 15 mg, or 20 mg per tablet | 43 mg, 75 mg, or 100 mg of extract per tablet | Allows for flexible, precise dosing. |
| Liquid/Syrup Formulation | 15 mg per 5 mL teaspoon | 75 mg of extract per 5 mL | Requires solubilizers and stabilizers for clear liquid. |
Frequently Asked Questions (FAQ)
Q: What is the key difference between Senna Leaf Extract and purified Sennosides?
A:
- Senna Leaf Extract: Contains a mixture of sennosides (A, B, etc.) within a botanical matrix that includes other plant compounds. Available in standardized potencies (e.g., 20% Sennosides).
- Purified Sennosides: Typically a refined chemical product containing a defined, high-purity mixture of mainly Sennoside A and B (e.g., Sennosides 20mg USP), used as the direct active pharmaceutical ingredient (API) in many OTC drugs.
For manufacturers: Using a standardized extract (like our 20% powder) offers a natural ingredient claim, while purified sennosides offer maximal potency and minimal plant material in the final formula.
Q: What are the potential side effects and safety concerns?
A: Short-term use is generally well-tolerated. Potential side effects can include:
- Common: Abdominal discomfort, cramping, nausea, diarrhea.
- With Long-Term/Excessive Use: Electrolyte imbalances (loss of potassium), dehydration, laxative dependence, melanosis coli (a harmless pigmentation of the colon lining), and impaired bowel function.
Contraindications: Do not use in cases of abdominal pain, nausea, vomiting, intestinal obstruction, inflammatory bowel disease (Crohn's, ulcerative colitis), appendicitis, or severe dehydration. Not for use during pregnancy or lactation without medical advice.
Q: Can Senna Extract be used for weight loss?
A: No. Senna is not a weight loss aid. Any weight loss from its use is due to temporary water loss and evacuation of intestinal contents, not fat loss. Using it for weight loss is dangerous and can lead to the serious side effects listed above, including dependency and severe electrolyte disturbances. This use is strongly discouraged.
How is the production process of the extract going?
◇ Selected raw materials: All raw materials have been manually selected and drink Chinese herbal medicine meeting the Chinese Pharmacopoeia.
◇ Extraction enrichment: We have independent extraction equipment that can produce extracts in large quantities.
◇ Refined purified: We will extract it three times to maximize the effective component.
◇ Spray drying: The extracted concentrate is filtered and dried, and the powder is very liquid and water-soluble.
◇ Screening: The product is filtered through a 100 mesh screen to ensure uniform powder.
◇ Packaging warehousing: After the product is tested, the packaging is sealed in the warehouse.

We have advanced detection equipment.

We support custom products
◇ We can process the extract into a solid drink
◇ We can make the extract into capsules
◇ We can make the extract into a teabag
◇ We can extract them into pressure Sheets

How do our products are packaged?

What are our modes of transportation?
◇By Air---for 1-50kg cargo shipping with fast shipping and door-to-door delivery.
◇By DHL/TNT/FEDEX---Suitable for 50-500kg above the cargo transport, with fast speed, the price is slightly low relative to air transport.
◇By Sea---Suitable for: 500kg or above goods transport, low price, can transport goods to the port.

Contact Us
Formulate effective, reliable, and compliant laxative products with our premium Senna Leaf Extract Powder. Available in USP-standardized potencies (10%, 15%, 20% Sennosides) and various extract ratios, we provide the flexibility and quality assurance needed for pharmaceutical and supplement development.
Please reach out to us today for technical data sheets, sample requests (5-10g available), and competitive pricing for your B2B manufacturing needs.
Email: ella.zhang@huilinbio-tech.com. Looking forward to your cooperation!
Why choose us?
- Our products are Halal and Kosher certified, making them suitable for a wide range of customers.
- Over the years, our company's products have been widely praised by users, and customer satisfaction has been increasing year by year. We take the development of the Senna Leaf Extract Powder industry as our responsibility and serve our customers wholeheartedly.
- As a professional supplier and manufacturer, we are committed to providing our customers with the best quality products.
- Our company has good production and operation operation, sufficient liquidity, and is a company with more economic and professional strength.
- Our prices are highly competitive and are designed to meet the needs of all customers.
- We have been adhering to the values of "honesty and enterprise, people-oriented, technology-led, and continuous innovation", and are always in a state of steady and rapid development.
- Our supply chain management system ensures timely delivery of products to our customers.
- Without customer satisfaction, there will be no success. Customer satisfaction is our unremitting pursuit.
- We are committed to ethical business practices and fair trade principles.
- We are a corporate citizen whose innovations benefit the world, and we measure the success of our innovations by the success of our customers.
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