Dual Action uses a specific yeast
The manufacturer identifies Saccharomyces boulardii CNCM I-745, with 250 mg per capsule or stick in the described products. Its newer Digest + Skin Renew is a different bacterial formulation. Probiotic effects depend on the strain and intended use; digestive-support marketing is not proof of treatment for every cause of diarrhea. [1][2]
Some people should avoid it
The manufacturer says not to use Florastor with yeast allergy, central lines or ports, critical illness, severe immune compromise, or around organ or bone marrow transplantation. It warns of rare fungemia or sepsis in vulnerable patients. Those restrictions matter even though the product is sold without prescription. [1]
Review the reason for taking it
Imagine considering it during an antibiotic course. Keep the prescribed antibiotic plan and ask whether this specific probiotic is appropriate; it does not replace treatment or assessment of severe or persistent diarrhea. Check the exact product’s directions, since the brand now includes different formulations. [2][1]
| Detail | Meaning |
|---|---|
| Dual Action | A named yeast strain |
| Digest + Skin Renew | A different formulation |
| Central line or severe immune compromise | Do not self-start |
Sources for this article
- Florastor manufacturer FAQ
Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product. - Probiotics - Health Professional Fact Sheet
Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product.