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Last updated: October 3, 2026 · By Martin Smith · How we research
BellyFlush is a herbal colon cleanse sold for bloating, regularity and a “flatter belly”. Its formula is built around plant laxatives, including senna, cascara sagrada and aloe, so its main effect is on the bowels. In the user reviews we found, many people say they noticed less bloating and more regular bowel movements within the first week, although results vary. Because it works as a laxative, talk to your doctor before starting, especially if you take any medication. We haven’t taken BellyFlush ourselves: this review is based on the manufacturer’s product pages and policies, published research on the ingredients, and the user reviews we found.
Check Today’s Price on The Official BellyFlush Website
BellyFlush at a glance
- What it is: a herbal colon-cleanse capsule from the brand Simple Promise, with senna, cascara sagrada and cape aloe as its main laxatives
- Form: capsules, 60 per bottle (a 30-day supply), ordered as 1, 3 or 6 bottles
- How to take it: two capsules a day with a large glass of water; the vendor’s pages suggest before bed or with a meal
- Guarantee: 365 days from purchase, according to the manufacturer; the bottles go back to the vendor
- Best for: short-term help with occasional constipation and the bloating that comes with it
- Who should skip it: anyone pregnant or breastfeeding, under 18, with a bowel condition, unexplained stomach pain, high blood pressure, heart or kidney disease, or taking diuretics, heart or steroid medication, unless a doctor agrees
- Our verdict in one line: a laxative, not a fat burner: any quick drop on the scale is mostly water and stool
What Is BellyFlush?
BellyFlush is a capsule supplement made by Simple Promise, a US supplement brand. According to the manufacturer, it is a “breakthrough body detox” that offers constipation relief and helps clear “intestinal buildup”, so you feel lighter and less bloated. It is sold on the brand’s own site and, for ClickBank customers, on cb.getbellyflush.com.
An earlier version of this review described BellyFlush as a blend of psyllium fibre, probiotics and digestive enzymes. The current formula on the manufacturer’s product page contains none of those: it is mainly a mix of herbal laxatives and gut-soothing herbs (see the ingredients below).
- Format: capsules, 60 per bottle
- Usage: two capsules a day with water (manufacturer’s directions)
- Made in: a facility that follows cGMP standards, according to the manufacturer
- Suitable for: adults over 18
How the Manufacturer Says BellyFlush Works
The product page says BellyFlush breaks down “built-up waste and toxins” so your gut “flushes out backed-up sludge”, leaving you feeling lighter and flatter. In practice, the main ingredients are stimulant laxatives: senna and cascara sagrada contain compounds (anthraquinones) that make the bowel muscles contract, usually producing a bowel movement within hours. Fennel and the soothing herbs are there to ease gas and irritation.
A healthy colon doesn’t store “sludge” or “toxins” that need flushing; the liver and kidneys handle waste. Relieving constipation can genuinely make you feel less bloated, but it doesn’t burn fat. We found no published trial of BellyFlush itself.
BellyFlush Ingredients: What the Research Says
According to the manufacturer’s product page, BellyFlush contains three blends. Amounts per ingredient aren’t given.
- Body Cleanse Blend: cascara sagrada, cape aloe leaf, senna leaf extract, triphala fruit
- Digestion Support Blend: fennel seed, bentonite (a clay)
- Gut Health Blend: marshmallow root, licorice root extract, slippery elm bark, cayenne pepper fruit, milk thistle seed
| Ingredient | What the manufacturer says | What published research says | Evidence for weight loss | Study |
|---|---|---|---|---|
| Senna leaf extract and cascara sagrada bark (stimulant laxatives) | Body cleanse; relieves constipation and clears intestinal buildup | Laxatives move stool and water, not fat. In a classic study, even extreme laxative purging cut the calories the body absorbed by only about 12%, and the authors called using laxatives for weight control “unsound”. | None found (for fat loss) | Bo-Linn et al., 1983 |
| Senna (long-term safety) | (not stated) | A 2024 review found stimulant laxatives at normal doses haven’t been shown to damage the gut in the long term; changes seen at very high doses were reversible. Daily use for months should still be agreed with a doctor. | (safety) | Whorwell et al., 2024 (review) |
| Cape aloe leaf | Body cleanse | Aloe leaf latex is another anthraquinone laxative. In a 2-year FDA toxicology study, a whole-leaf aloe extract given in drinking water caused intestinal tumours in rats. Whether this applies to the form and amount in BellyFlush isn’t known. | None found | Boudreau et al., 2013 |
| Licorice root extract | Gut health blend | A toxicology review notes that licorice (glycyrrhizin) can raise blood pressure and lower potassium, especially with regular use. That matters for people with high blood pressure or heart disease, and in combination with laxatives, which can also lower potassium. | None found | Nazari et al., 2017 (review) |
| Triphala fruit | Body cleanse | A traditional Ayurvedic blend of three fruits used as a mild laxative; a review describes it as studied for digestion and several other uses, mostly in small or lab studies. | None found | Peterson et al., 2017 (review) |
How to read the evidence column: Strong means consistent results from good-quality trials; Some means a modest effect across several trials; Limited means small, short or uncertain results; None found means we found no trials showing an effect on weight. We found no weight-loss trials for fennel, bentonite, marshmallow root, slippery elm, cayenne or milk thistle in a formula like this.
Worth knowing: in 2002 the FDA removed aloe and cascara sagrada from over-the-counter laxative medicines because manufacturers hadn’t supplied the safety and effectiveness data it asked for. They can still be sold in dietary supplements, which the FDA doesn’t pre-approve.
What Users Report
In the user reviews we found, the benefits people mention most are about the bowels rather than body fat (results vary):
- Less bloating and a flatter-feeling stomach within the first days
- More regular bowel movements
- Less discomfort after meals
Does BellyFlush Really Work for Weight Loss?
BellyFlush is not a weight loss supplement in the fat-burning sense. A laxative empties the bowel and pulls water into it, so the scale can drop a little in the first days, and the waist can look flatter when bloating eases. That isn’t fat loss, and it returns once you eat and drink normally. Research on laxatives shows they barely reduce the calories your body absorbs.
If constipation is what makes you feel heavy and bloated, BellyFlush may help with that for a while. For lasting weight loss, a calorie deficit, enough fibre and fluids, and regular activity matter far more.
Common Issues: BellyFlush Complaints & User Concerns
The most frequently raised complaints from user reviews include:
- Initial digestive adjustment — some users experience loose stools or increased bathroom visits in the first three to four days as the cleanse begins working
- Slower weight loss than expected — users expecting rapid fat loss are sometimes disappointed when the initial results are primarily bloating reduction rather than scale weight
- Needs consistency — several users report that skipping doses disrupts progress more noticeably than with other supplement types
- Only available online — the lack of retail availability is a recurring frustration for users who prefer to buy in person
Loose stools and extra bathroom trips are the expected effect of a laxative. If they don’t settle within a few days, or you get strong cramps, stop taking it and talk to your doctor.
BellyFlush Side Effects: Is It Safe?
BellyFlush is made from plant-based ingredients, according to the manufacturer, and side effects appear to be uncommon in the reviews we found, but talk to your doctor before starting. The most commonly reported side effects occur in the first three to five days and include:
- Loose stools or more frequent bowel movements as the cleanse takes effect
- Mild cramping or digestive discomfort during the initial adjustment period
- Increased thirst — important to drink plenty of water while using any fibre-based cleanse supplement
Important: BellyFlush Is a Laxative
Stimulant laxatives such as senna and cascara are meant for occasional constipation. Taken daily for weeks, they can cause diarrhoea, dehydration and low potassium, and some people start to feel they can’t go without them. Licorice can also raise blood pressure and lower potassium. Laxatives can reduce how well other medicines are absorbed, and low potassium matters if you take diuretics, digoxin or other heart medicines, or steroids. Don’t use BellyFlush for unexplained stomach pain, nausea or vomiting.
Who Should Skip BellyFlush (or Talk to a Doctor First)
Who should avoid BellyFlush:
- Pregnant or breastfeeding women
- People under 18
- Anyone with a diagnosed inflammatory bowel condition such as Crohn’s disease or ulcerative colitis
- Those currently taking prescription medication — consult your doctor first
How to Use BellyFlush
The manufacturer’s directions are two capsules a day with an 8 oz glass of water. Its pages differ on timing: one says 20 to 30 minutes before bed, another says with a meal. Taking a laxative at bedtime usually means a bowel movement the next morning. Don’t take more than two capsules, drink plenty of water, and if you want to use it for more than a week or two, check with your doctor first.
BellyFlush Pros and Cons
Pros
- Likely to relieve occasional constipation and the bloating that comes with it
- Ingredients named on the product page
- Long 365-day money-back guarantee, according to the manufacturer
- Free shipping
Cons
- Works as a laxative; it doesn’t burn fat
- Not suitable for daily long-term use without medical advice
- Contains licorice, which isn’t suitable for people with high blood pressure
- Amounts per ingredient aren’t disclosed
- The vendor’s pages give different instructions on when to take it
BellyFlush Price, Guarantee and How Buying Works
BellyFlush comes in bundles of 1, 3 or 6 bottles (30-, 90- and 180-day supplies), with a lower price per bottle on the larger bundles. See the official website for current pricing.
How buying works. If you order through our link, you land on cb.getbellyflush.com and ClickBank processes the payment. The brand also sells through its own store, mysimplepromise.com. According to the shipping policy, shipping is free; US orders arrive in 5 to 7 business days and international orders in 20 to 30 business days.
The 365-day money-back guarantee. According to the manufacturer, you can ask for a refund within 365 days of purchase. The return policy asks you to send the bottles back (used, unused or empty) to its US returns centre with your name and order ID, then let support know with your tracking number or postage receipt. Processing can take up to 2 weeks after the return arrives, plus 10 to 14 business days for your bank. Support: support@mysimplepromise.com.
Is BellyFlush a Scam? How to Find the Real Website
No, BellyFlush is a real product from an established supplement brand, with a written refund policy. Before you pay, check that:
- You’re on cb.getbellyflush.com (ClickBank checkout) or the brand’s own store, mysimplepromise.com.
- The support address is support@mysimplepromise.com.
- You’re not buying from Amazon, eBay or another marketplace, where the product can’t be verified and the guarantee may not apply.
Our links go through ClickBank’s affiliate redirect to the vendor’s current sales page. We earn a commission if you buy, at no extra cost to you.
Check Today’s Price on The Official BellyFlush Website
Alternatives to BellyFlush
- Okinawa Flat Belly Tonic review: a fibre-and-probiotic drink rather than a laxative.
- Berberine supplement review: if weight rather than bloating is the goal, a single ingredient with more human weight research behind it.
- CitrusBurn review: a stimulant-free metabolism capsule.
- Trimology review: a gut-focused capsule built on prebiotic fibre and probiotics rather than laxative herbs.
For occasional constipation, plain fibre (such as psyllium), fluids and movement are well-studied first steps. For our side-by-side ranking of weight loss supplements, see the best weight loss supplements 2026 guide.
Final Verdict: Is BellyFlush Worth It?
BellyFlush is a herbal laxative cleanse. It is likely to do what laxatives do (empty the bowel and ease bloating from constipation), and the 365-day guarantee is unusually generous. It is not a fat-loss product: the quick change on the scale is water and stool, and the research on laxatives for weight control is clear that they barely affect calorie absorption.
Because senna, cascara, aloe and licorice aren’t meant for daily long-term use, treat it as an occasional aid, not a daily habit, and talk to your doctor if you take medication or have a heart, kidney or bowel condition.
It may suit:
- Adults who want short-term help with occasional constipation and bloating
It is not a good fit for:
- Anyone hoping to lose body fat
- People with diagnosed inflammatory bowel conditions, high blood pressure, or heart or kidney disease without medical guidance
- Anyone planning to take a laxative every day for months
Visit The Official BellyFlush Website
Frequently Asked Questions
Q1: What is BellyFlush and how does it work?
BellyFlush is a herbal colon-cleanse capsule. Its main ingredients, senna, cascara sagrada and cape aloe, are stimulant laxatives that make the bowel move; fennel and soothing herbs such as marshmallow root and slippery elm are added for gas and comfort.
Q2: Does BellyFlush really work for weight loss?
Not for fat loss. Many users report less bloating within the first week, and the scale may dip as the bowel empties, but that is water and stool, not fat, although results vary.
Q3: What are the most common complaints about BellyFlush?
In the reviews we found: loose stools and extra bathroom visits at first, slower scale results than expected, and that it is only sold online.
Q4: Are there any side effects of BellyFlush?
Some users experience loose stools, mild cramping, or increased thirst during the first three to five days. As with any laxative, regular long-term use can cause dehydration and low potassium, and licorice can raise blood pressure, so talk to your doctor before using it for more than a short time.
Q5: How long is the BellyFlush guarantee?
365 days from purchase, according to the manufacturer. You need to send the bottles back to its returns centre.
Q6: Where can I buy BellyFlush safely?
Through cb.getbellyflush.com (via ClickBank) or the brand’s store, mysimplepromise.com. It is not available on Amazon or in stores.
Disclaimer: This review is for informational purposes only. Individual results may vary. Always consult a healthcare professional before starting any new supplement or cleanse program.