Mag O7 vs ColonBroom: Which is Better for Colon Cleanse?

What Is Mag O7?

Mag O7 (you’ll also see it written as MagO7 or Mag07) is a colon cleanse supplement made by NBPure — previously sold under the Aerobic Life brand. It’s been on the market for over 25 years and is one of the most trusted oxygen-based colon cleansers available.

The formula hasn’t changed, only the packaging did (in 2020, when Aerobic Life rebranded to NBPure). You take capsules at bedtime, and most users wake up needing a bathroom visit within 6–10 hours. You can do a 1-day, 3-day, 7-day, or 10-day cleanse — or just take it as needed when constipated.

Mag O7 is vegan, non-GMO, gluten-free, and cramp-free according to the manufacturer — and thousands of user reviews confirm the no-cramp claim (something that sets it apart from harsh stimulant laxatives).

Expert Guide: Learn more about safety protocols and long-term use in our comprehensive guide: Is Oxy-Powder Safe for Daily Use? Side Effects, Dosage & Guide (2026).

What Is ColonBroom?

ColonBroom is a flavored psyllium husk fiber powder made by Gut Health UAB in Lithuania. It exploded in popularity around 2022–2024, largely through social media, and has since grown into a full product line (including ColonBroom Premium with added weight-management ingredients).

You mix one scoop into a large glass of water and drink it 30–60 minutes before a meal. The strawberry flavor makes it much more pleasant than unflavored psyllium supplements like generic Metamucil. It’s designed for daily use — not as a one-time cleanse, but as a consistent fiber habit.

How Mag O7 vs ColonBroom Works — The Science Made Simple

🔵 How Mag O7 Works

Mag O7 contains a proprietary form of ozonated magnesium oxide. When the capsules reach your stomach, two things happen simultaneously:

1. The osmotic effect: Magnesium pulls water into your bowel — similar to how MiraLax works. This softens hardened stool and gets things moving. It’s one of the most well-established mechanisms in gastroenterology, endorsed by both the American Gastroenterological Association (AGA) and American College of Gastroenterology (ACG).

2. The oxygen release: The ozonated compounds slowly release reactive oxygen species (ROS) over 8–12 hours as they travel through your digestive tract. This oxygen helps break down old, compacted waste that may be stuck along the colon walls.

“MagO7 works gently overnight, bringing oxygen and water into your colon to promote morning movement. No cramps. No bloat. Just a good morning.” — NBPure (manufacturer)

Unlike stimulant laxatives (senna, bisacodyl), Mag O7 doesn’t force your bowel to contract. It simply creates the right conditions for your colon to empty naturally. That’s why most users describe it as gentle — more like your body doing its job than being forced.

🟢 How ColonBroom Works

ColonBroom’s active ingredient is psyllium husk — a soluble fiber from the seeds of the Plantago ovata plant. When you mix it with water and drink it, it absorbs the liquid and forms a thick gel in your gut.

That gel does four helpful things:

Bulks and softens stool — making it larger but softer, so it passes through your colon more easily. Slows digestion — you feel fuller longer, which can reduce unnecessary snacking. Feeds good gut bacteria — psyllium is a prebiotic, nourishing beneficial species like Faecalibacterium and Lachnospira that produce butyrate (a key gut health molecule). And unlike stimulant laxatives, it can work in both directions — helping whether you’re constipated or have loose stools, because it’s regulating water balance rather than forcing movement.

Mag O7 vs ColonBroom Ingredients: What’s Actually Inside?

What Does the Research Actually Say?

🔬 Evidence for Mag O7 (Magnesium Oxide)

Mag O7’s specific “ozonated” formula has not gone through independent published clinical trials. However, the underlying mechanisms are well-supported by research on magnesium oxide and osmotic laxatives broadly.

Magnesium-based laxatives are endorsed by the American Gastroenterological Association (AGA) and American College of Gastroenterology (ACG) in their 2023 joint guidelines on chronic constipation. The osmotic mechanism is one of the most reliable and well-studied laxative approaches in medicine.

The “time-released oxygen” component is the more unique claim. The manufacturer states that ozonated magnesium oxide releases reactive oxygen species that break down intestinal waste — this is biologically plausible chemistry, but peer-reviewed studies specifically on Mag O7’s ozonated formula are limited. You’re largely relying on the 25-year track record and 40,000+ Amazon reviews rather than formal clinical trials on the finished product.

Bottom line: The magnesium osmotic effect is very well-supported. The oxygen-cleansing aspect is manufacturer-claimed but plausible. Results are consistent in user reports.

🔬 Evidence for ColonBroom (Psyllium Husk)

Psyllium husk is one of the most clinically validated dietary fibers in existence. The evidence base here is genuinely outstanding:

A 2025 systematic review published in Przegląd Gastroenterologiczny concluded that psyllium husk deserves recognition as the gold standard fiber for regulating bowel movements — outperforming other dietary fibers in both chronic and occasional constipation. A 2022 meta-analysis of 16 randomized controlled trials found that psyllium supplementation significantly improved both stool frequency and consistency, with the strongest effects seen at doses above 10g/day taken for at least 4 weeks. A separate controlled trial found that psyllium feeds beneficial gut bacteria including Faecalibacterium, Lachnospira, and Roseburia — organisms that produce butyrate, a key short-chain fatty acid for colon health.

Psyllium husk is also the only dietary fiber with FDA approval as an over-the-counter laxative — the same FDA standing as Metamucil.

Mag O7 vs ColonBroom Side Effects & Safety — What to Expect

⚠️ Mag O7 Side Effects

Loose or watery stools — this is expected and is actually the product doing its job. At higher doses (4–5 capsules), you may have multiple bathroom trips, especially on the first day or two. Most people find 2–3 capsules is a gentler starting point. Gas is also common — some users report bubbling or gassiness during the cleanse. Dehydration is a real risk — magnesium draws water into your bowel, so you must drink plenty of water throughout the day (not just at the time of your dose).

Mag O7 is not recommended if you’re pregnant, nursing, or have kidney disease (since magnesium is processed by the kidneys). If you have inflammatory bowel disease (IBD like Crohn’s or ulcerative colitis), consult your doctor first.

⚠️ ColonBroom Side Effects

Bloating and gas in the first 1–2 weeks is very common — this is your gut adjusting to suddenly getting more fiber. It typically resolves on its own. Starting with half a scoop for the first week can help. The most serious risk with ColonBroom (and all psyllium products) is choking if not taken with enough water. Psyllium expands rapidly — always use 12–14 fl oz of water and drink it immediately after mixing.

Drug interactions are important: psyllium husk can reduce the absorption of some medications (diabetes drugs, cholesterol medications, thyroid hormones). Take ColonBroom at least 2 hours apart from any prescription medication.

Some users are allergic to psyllium — rare, but if you develop hives, difficulty breathing, or swelling, stop immediately and seek medical help.

Full Head-to-Head Comparison Table

Who Should Use Which?

Can You Use Both Together?

Some people do a Mag O7 cleanse first, then switch to daily ColonBroom for maintenance — and that’s a reasonable approach. Using both simultaneously is not recommended without doctor approval, since combined osmotic and fiber effects could cause excessively loose stools or dehydration.

A smart protocol: Use Mag O7 for a 3–7 day cleanse, let your gut settle for a few days, then begin daily ColonBroom for ongoing maintenance. If you want even more gut support, consider adding a probiotic supplement after the cleanse — our guide to the best probiotics for constipation explains how to combine them effectively.

You might also want to read our full guide on chronic constipation to better understand what type you’re dealing with before choosing a supplement.

Product Details & Where to Buy

For more natural ways to support your gut health alongside either supplement, check out our guides on olive oil for constipation and prune juice for constipation — both are well-supported and can complement either product.

Mag O7 vs ColonBroom: Frequently Asked Questions

Can I take Mag O7 and ColonBroom together?

It is generally not recommended to take them simultaneously. When comparing Mag O7 vs ColonBroom, both draw water into your bowel through different mechanisms, and taking them together may cause very loose stools or dehydration. A better approach is to use Mag O7 for a 3–7 day cleanse first, then transition to daily ColonBroom for ongoing maintenance. Always check with your doctor before combining supplements.

How long does Mag O7 take to work?

Most users experience a bowel movement 6–10 hours after taking it — so if you take it before bed, expect a bathroom trip in the morning. However, in the context of Mag O7 vs ColonBroom, Mag O7 is much faster, though some people with severe constipation may still need 2–3 nights before seeing full results.

Is ColonBroom safe for daily use?

Yes. Psyllium husk is non-habit-forming and is considered safe for long-term daily use when taken with adequate water. In the Mag O7 vs ColonBroom debate, ColonBroom is the one designed for a daily routine, similar to Metamucil. If you take prescription medications, check with your doctor as psyllium can interfere with drug absorption.

Which is better for weight loss — Mag O7 or ColonBroom?

ColonBroom is the better choice for weight management support. Between Mag O7 vs ColonBroom, psyllium husk wins for weight loss because it increases satiety (you feel full longer) and regulates blood sugar. Mag O7 is purely a colon cleanser — any “weight loss” from it is usually waste elimination, not fat loss.

Is Mag O7 habit-forming?

No. Mag O7 works through an osmotic, oxygen-release mechanism — not by stimulating your bowel muscles. While stimulant laxatives can cause dependency, Mag O7 vs ColonBroom are both non-habit-forming options. However, Mag O7 is still designed for short-term use, unlike the daily fiber support of ColonBroom.

Does ColonBroom actually work?

Yes, primarily because its main ingredient — psyllium husk — is an FDA-approved laxative with decades of clinical evidence. While the specific brand hasn’t been independently tested, the results of Mag O7 vs ColonBroom are both well-supported by their respective active ingredients (magnesium vs fiber).

Can I take either of these supplements if I’m on medication?

Both supplements can interact with medications. In the Mag O7 vs ColonBroom comparison, both require caution; psyllium can reduce drug absorption (take 2 hours apart), while magnesium should be monitored if you have kidney issues or take meds affected by mineral levels.

Why is ColonBroom so expensive compared to Metamucil?

The price difference between Mag O7 vs ColonBroom and generic options like Metamucil comes down to branding, strawberry flavoring, and app features. Scientifically, generic psyllium works just as well as ColonBroom, but ColonBroom offers a more premium “experience.