The Microplastic Protect ingredients are two actives: 99% pure chitosan made from button mushrooms, and chitosan oligosaccharide, a lower-molecular-weight form of chitosan. Two vegetarian capsules provide 1200 mg, and the formula is made without shellfish.
This guide explains what each ingredient is, where it comes from, and how to read the label. If you want the full product details first, see the Microplastic Protect supplement page.
The formula is short. It has two active ingredients, delivered in vegetarian capsules.
| Ingredient | What it is | Why it is in the formula |
|---|---|---|
| Mushroom chitosan (99% pure) | A positively charged dietary fiber ingredient made from button mushrooms | Main fiber component, shellfish-free |
| Chitosan oligosaccharide | A lower-molecular-weight form of chitosan | Adds a shorter-chain form alongside standard chitosan |
| Vegetarian capsule | The capsule shell | No animal-derived capsule |
Chitosan is a fiber-type ingredient that carries a positive charge. It is traditionally made from shellfish shells. Microplastic Protect uses chitosan from button mushrooms instead, so it is a fungal source and the product is made without shellfish.
Researchers have also studied chitosan extracted from button mushrooms (Agaricus bisporus) as a more sustainable alternative to crab-shell chitosan. A 2025 paper in Processes describes a chitosan-glucan material from champignon mushrooms with lower molecular weight and high deacetylation.
The “99% pure” figure refers to the purity of the chitosan ingredient itself. It does not mean 99% of the capsule is active.
Chitosan oligosaccharide is a lower-molecular-weight form of chitosan. In simple terms, the chitosan chains are shorter. Formulas sometimes pair it with standard chitosan so the product contains more than one chain length.
Scientific reviews describe low-molecular-weight chitosan and chitooligosaccharides as smaller-chain forms of chitosan. They are made in part because standard high-molecular-weight chitosan dissolves poorly at neutral pH. See this 2021 review in Polymers for how they are produced.
The chitosan comes from button mushrooms, which are fungal, not animal. That is why the product is made without shellfish. If you have a shellfish allergy, still read the label and ask your healthcare professional before use.
Source matters because chitosan quality depends on what it is made from and how it is processed. [Add: manufacturing facility and country, GMP status, and any certifications you hold.]
[Add: third-party lab name, testing dates, and a link to the Certificate of Analysis (COA). The product pages do not mention testing, so only add what you can document. A COA link is one of the strongest trust signals this post can carry.]
Microplastic Protect is designed to support digestive wellness and the body’s natural elimination processes, as part of an environmental wellness routine with a balanced diet and healthy lifestyle.
It is not a drug, and these statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Talk to a qualified healthcare professional before use if you are pregnant, nursing, taking medication, or managing a medical condition.
For general guidance on reading supplement labels and when to check with a clinician, see the NIH Office of Dietary Supplements consumer fact sheet and the FDA’s dietary supplements page.
For timing, missed doses, and what to expect, read our guide on how to take Microplastic Protect. To see how it differs from standard products, read Microplastic Protect vs regular chitosan supplements.
The active ingredients are 99% pure mushroom-derived chitosan and chitosan oligosaccharide. The capsules are vegetarian.
Yes. The chitosan comes from button mushrooms, and the product is made without shellfish. If you have a serious allergy, check the label and speak with your healthcare professional.
It is a lower-molecular-weight form of chitosan, meaning the chains are shorter. It is used alongside standard chitosan in this formula.
Two capsules provide 1200 mg in total. [Add the exact split between mushroom chitosan and chitosan oligosaccharide from the label.]
No. We do not claim that it removes microplastics. It is designed to support digestive wellness and the body’s natural elimination processes, and it should not be presented as a proven way to remove microplastics.
It depends on how you take it. See our guide on how long a bottle of Microplastic Protect lasts.
Our Microplastic Protect FAQ covers source, use, and formula in one place.
See the full formula, directions, and price on the Microplastic Protect product page, or read the Microplastic Protect supplement overview.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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