Lower Bowel Stimulator | Gentle Colon & Digestive Support

Name: Lower Bowel Stimulator (Original Formula)
Brand: Nature's Sunshine
SKU: 990
Price: 19.45 USD
Availability: InStock
Rating: 4.5 (174 reviews)

Learn about Lower Bowel Stimulator (LBS II) by Nature's Sunshine — a natural formula with Cascara sagrada, Buckthorn, Licorice root & more for bowel regularity.

Overview

What Is a Lower Bowel Stimulator?

A lower bowel stimulator is an herbal formula designed to encourage healthy, regular bowel function by gently promoting the movement of waste through the colon and digestive tract. Nature's Sunshine's Lower Bowel Stimulator (Original Formula), also known as LBS II, brings together time-honored botanicals — Cascara sagrada, Buckthorn, Licorice root, Capsicum, Ginger, Oregon grape, Red clover, and Turkey rhubarb — to support the body's natural elimination processes.

This formula works by combining herbs that have been traditionally used for centuries to stimulate intestinal peristalsis, soothe the digestive lining, and assist in colon cleansing. The result is a gentle yet effective approach to occasional constipation and digestive sluggishness. Each bottle contains 100 VeggieCaps, and the product carries a kosher designation.

How It Works

How the Lower Bowel Stimulator Supports Digestive Wellness

The Lower Bowel Stimulator formula uses a multi-pronged approach to encourage proper waste elimination. Several of its core herbs — Cascara sagrada, Buckthorn, and Turkey rhubarb — contain anthraquinone glycosides, which research shows are carried unabsorbed to the large intestine. There, intestinal bacteria convert them into active metabolites that stimulate colonic motility and help regulate fluid balance in the bowel, promoting softer, more comfortable stools.

These stimulant herbs are complemented by soothing and supportive botanicals. Licorice root has traditionally been used in herbal medicine as a demulcent that helps soothe the intestinal lining, while Ginger rhizome may help support digestion and allay feelings of nausea. Capsicum fruit promotes both elimination and circulation throughout the digestive system.

Rather than relying on a single harsh ingredient, this lower bowel stimulator combines herbs that work together — stimulating peristalsis, supporting digestive comfort, and nourishing the digestive system during the cleansing process. The formula is intended for short-term, occasional use when dietary changes alone have not been sufficient.

What's inside

Key ingredients

Cascara sagrada bark — 1700 mg

Cascara sagrada (Frangula purshiana) bark is a traditional North American herbal laxative used for centuries by Native Americans and adopted into Western medicine in the 19th century. Its active cascarosides — anthraquinone derivatives — stimulate colonic peristalsis and inhibit water reabsorption in the colon, typically producing a bowel movement within 6–12 hours. Research has characterized its dual mechanism: stimulation of colonic motility that accelerates fecal transit, and promotion of fluid and electrolyte secretion into the intestinal lumen. Cascara sagrada is widely used in colon-cleanse and whole-body cleanse formulations as a bowel evacuant that supports elimination pathways. Traditionally, it was also used as a bitter tonic to stimulate digestive function. The bark must be properly aged or heat-treated before use, as fresh bark contains compounds that can cause severe gastrointestinal distress.

Buckthorn bark — 1700 mg

Buckthorn bark (from Rhamnus and Frangula species) contains anthraquinone glycosides — primarily glucofrangulin and frangulin — that act as stimulant laxatives. These compounds are converted by colonic bacteria into active anthrone metabolites that directly stimulate propulsive colonic contractions and inhibit water reabsorption, producing a laxative effect. The European Medicines Agency HMPC and ESCOP have both recognized Buckthorn bark for short-term treatment of occasional constipation. Traditionally, alder Buckthorn has been used as a cathartic laxative in northern and central Europe for centuries, providing a milder action than purging Buckthorn. It was historically used as a tonic for the intestines and for relieving hemorrhoids, and it appears in traditional whole-body cleansing herbal blends. Buckthorn has also been traditionally used when soft stool is required due to anorectal conditions such as hemorrhoids.

Licorice root — 1700 mg

Licorice root (Glycyrrhiza glabra) has been used worldwide for over 4,000 years in traditional medicine. In colon-cleanse formulations, it is valued for its demulcent, anti-inflammatory, and mild laxative properties that help soothe the intestinal lining and support bowel function. In Traditional Chinese Medicine, it is considered a key harmonizing herb in bowel-cleansing formulas. Studies suggest that Licorice root supports the digestive system broadly — research has investigated its role in functional dyspepsia, peptic ulcer management, and H. pylori-associated gastric inflammation. A component of the well-studied Iberogast formula, Licorice root has been associated with reducing abdominal discomfort and IBS symptoms in multiple randomized controlled trials. The German Commission E approves licorice for gastrointestinal complaints, and the ESCOP monograph lists it as an adjuvant therapy for gastric and duodenal conditions.

Capsicum fruit — 1700 mg

Capsicum fruit (Capsicum spp.) contains capsaicin, which acts throughout the digestive system via TRPV1 receptors on gastrointestinal sensory neurons. Research suggests that capsaicin promotes elimination and circulation, stimulates GI motility, and increases gastric secretions. A placebo-controlled randomized trial published in the New England Journal of Medicine found that oral red pepper capsules significantly reduced epigastric pain and overall dyspeptic symptoms in functional dyspepsia patients. Studies also suggest capsaicin has gastroprotective effects, including reduced NSAID-induced gastric mucosal microbleeding. Traditionally, Capsicum has been used for centuries across cultures to treat dyspepsia, stimulate appetite, and improve digestion and circulation.

Ginger rhizome — 1700 mg

Ginger (Zingiber officinale) is one of the most scientifically validated herbs for digestive support. Multiple systematic reviews and meta-analyses of randomized controlled trials confirm its efficacy for nausea and vomiting, and its prokinetic action — stimulating gastrointestinal motility and accelerating gastric emptying — makes it relevant to bowel regularity. Active compounds gingerols and shogaols act as 5-HT4 receptor agonists and suppress prostaglandin synthesis through inhibition of COX-1 and COX-2, providing both anti-inflammatory and motility-enhancing effects. German Commission E has approved Ginger for dyspepsia and GI motility. Traditional use in Ayurvedic and Chinese medicine for digestive complaints, bloating, and nausea spans thousands of years. Ginger also helps support digestion and allay feelings of nausea, providing a soothing effect on the entire digestive tract.

Oregon grape root and rhizome — 1700 mg

Oregon grape (Mahonia aquifolium / Berberis aquifolium) root is a classic bitter tonic in Western herbalism. Its isoquinoline alkaloids — particularly berberine — stimulate digestive secretions including bile and pancreatic enzymes, and have documented antimicrobial activity. Isolated berberine from Berberis species has been shown in double-blind clinical trials to effectively treat diarrhea caused by E. coli and other enteropathogens. Studies also suggest berberine modulates gut microbiota composition, increasing beneficial bacterial populations. Traditionally, Native American tribes of the Pacific Northwest used Oregon grape root preparations to treat stomach problems, as a laxative, and as a blood tonic. The Eclectic physicians regarded it as an effective remedy for liver and gallbladder ailments and gastrointestinal infections. In this formula, it further nourishes the digestive system during the cleansing process.

Red clover flowers — 1700 mg

Red clover (Trifolium pratense) flowering tops have been used in both Western and Traditional Chinese herbal medicine for a variety of purposes. Part of a classification of herbs known as alteratives, Red clover traditionally supports the detoxification functions of the liver and lymphatic systems. Indigenous peoples of North America used it as a spring tonic and blood purifier, and it became commercially popular in the United States in the 1930s as part of 'Trifolium Compounds' marketed as blood purifiers to help clear the body of metabolic toxins. Red clover contains isoflavones — primarily biochanin A and formononetin — and additional phenolic compounds. European herbalists have documented its traditional use for respiratory conditions, wound healing, and women's reproductive wellness since at least the 14th century.

Turkey Rhubarb root — 1700 mg

Turkey Rhubarb root (Rheum palmatum / Rheum officinale) is one of the most extensively documented herbal laxatives in the world, used in traditional Chinese medicine for over 2,000 years. Its anthraquinone constituents — including sennosides, emodin, and rhein — stimulate colonic peristalsis and inhibit water reabsorption in the large intestine. A double-blind randomized controlled trial in middle-aged adults confirmed that Rhubarb root extract improved stool frequency and consistency compared with placebo, and also modulated gut microbiome composition. The German Commission E, ESCOP, and European Medicines Agency HMPC all formally recognize Rhubarb root for short-term treatment of occasional constipation. Traditionally, rhubarb has been used in TCM to eliminate pathogenic heat and toxins, support the digestive system during cleansing, and restore healthy bowel function.

Lower Bowel Stimulator (Original Formula)

★★★★★ 4.5 (174 reviews)

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Lower Bowel Stimulator (Original Formula)

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Who Benefits

Who May Benefit from a Lower Bowel Stimulator

This lower bowel stimulator is formulated for adults who experience occasional constipation and are looking for a natural approach to support bowel regularity when dietary changes alone have not been sufficient. It may also appeal to those interested in a gentle colon cleanse or digestive system support as part of a short-term cleansing program.

Because individual needs vary, we always recommend speaking with a qualified health professional before starting any new supplement. Our naturopath is available for free consultations and can help you determine whether this formula is appropriate for your situation, especially if you are taking medications or have existing health conditions.

This product is not intended for prolonged use and is contraindicated for children, pregnant or nursing women, and individuals with inflammatory bowel conditions, intestinal obstruction, or abdominal pain of unknown origin. Please review the full directions and precautions before use.

Directions

How to Take the Lower Bowel Stimulator

Take 2–4 capsules daily with a meal.

NOTE: This product contains Cascara sagrada, Buckthorn and Turkey rhubarb. See your health care provider prior to use if pregnant or nursing, any medical condition exists, or when taking any medication. Read and follow recommendation carefully. Not intended for prolonged use. Do not use if diarrhea, loose stools or abdominal pain are present or develop. Use of this product may worsen these conditions and be harmful to your health. Chronic diarrhea can result in serious illness.

About the author

Written by Greg Howlett

Greg Howlett

Founder

Greg has spent over a decade helping customers choose the right natural-health products. He personally vets every formula we carry and writes these guides to cut through the marketing noise with practical, experience-based advice.

FAQ

Frequently asked questions

What does the Lower Bowel Stimulator do?

LBS II by Nature's Sunshine encourages optimal bowel and digestive health while helping to cleanse the bowels and colon. It contains herbs like Cascara sagrada, Buckthorn, and Turkey rhubarb that help the body regulate the gentle passage of waste products and stimulate the bowels for improved regularity. Additional herbs such as Ginger, Licorice root, and Capsicum support digestion, promote elimination and circulation, and soothe the digestive tract.

How long can I take the Lower Bowel Stimulator?

This product is not intended for prolonged use. Its anthraquinone-containing herbs — Cascara sagrada, Buckthorn, and Turkey rhubarb — are recognized by European and international regulatory bodies for short-term treatment of occasional constipation only. If you need ongoing digestive support, we recommend scheduling a free consultation with our naturopath to explore options tailored to your needs.

Are there side effects I should be aware of?

As with any stimulant laxative formula, possible effects may include abdominal discomfort or cramping. Do not use if diarrhea, loose stools, or abdominal pain are present or develop, as use of this product may worsen these conditions. Long-term use of stimulant laxatives can lead to electrolyte imbalances and dependence. Consult your health care provider prior to use if any medical condition exists or when taking any medication.

Is this product suitable for vegetarians?

Yes. The Lower Bowel Stimulator (Original Formula) comes in 100 VeggieCaps and carries a kosher designation. Nature's Sunshine also offers this formula in VegiTabs for those who prefer a tablet form.

How quickly does the Lower Bowel Stimulator work?

The anthraquinone-containing herbs in this formula — Cascara sagrada, Buckthorn, and Turkey rhubarb — typically produce a laxative effect within 6 to 12 hours. This is because the active glycosides are carried to the large intestine where they are converted by intestinal bacteria into metabolites that stimulate colonic motility. Many people find it helpful to take the capsules in the evening with dinner.

Can I take this product with other medications?

You should consult your health care provider before using this product if you are taking any medication. Several of the herbs in this formula — including Cascara sagrada, Buckthorn, Licorice root, and Turkey rhubarb — may interact with certain medications, particularly cardiac glycosides, antiarrhythmics, corticosteroids, diuretics, and warfarin. Our naturopath is available for a free consultation to discuss potential interactions specific to your situation.

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