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Thorne Undecylenic Acid (formerly Undecyn)

Thorne Undecylenic Acid (formerly Undecyn)

OTC DrugThorne Undecylenic Acid (formerly Undecyn)
Reviewed by Dr. Younghun Cho
72/100
Good

Reviewed by Dr. Younghun Cho, PharmD

This is a well-formulated, high-quality supplement for a specific purpose, but its use is not supported by large-scale clinical trials and it carries a real risk of drug interactions.

Pharmacist's Verdict

Thorne Undecylenic Acid is a high-quality supplement designed to help balance yeast in the gut, but it's best used under a doctor's guidance due to its potent ingredients and potential drug interactions.

Ingredient Analysis

Calcium Undecylenate

Details pending pharmacist review.

Berberine HCl

Details pending pharmacist review.

Bentonite Clay

Details pending pharmacist review.

Pros & Cons

Pros

  • Combines multiple ingredients known to fight yeast and unwanted microbes.
  • Made by a reputable brand (Thorne) known for high manufacturing standards.
  • Undecylenic acid has a long history of use as an effective anti-fungal agent.
  • May help reduce symptoms associated with yeast overgrowth, like bloating and gas.

Cons

  • Can cause stomach upset, nausea, or other digestive side effects.
  • The evidence for using oral undecylenic acid for gut health is not as strong as for its topical use.
  • Contains Berberine, which can interact with many common prescription drugs (like metformin and blood thinners).
  • Should not be used without a proper diagnosis; self-treating gut issues can be risky.
  • Relatively expensive compared to general gut health supplements.

Research & References

FDA and PubMed citations are being compiled for this product.

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