Multi-strain bacteria versus S. boulardii yeast
PB8 Immune Support Probiotic, 60 capsules
Amazon · 4.7 / 5 from 320 ratings · 2026-11-14
Amazon displayed “100+ bought in past month” on 2026-11-14.
View on AmazonCompared with Florastor Dual Action Probiotic.
Check the organism on the label
PB8 Immune Support’s 60-capsule listing describes a multi-strain bacterial formula with a one-capsule serving. Florastor Dual Action uses the yeast Saccharomyces boulardii CNCM I-745. A yeast preparation is not interchangeable with a bacterial blend simply because both can be placed on a probiotic shelf.
| What changes | PB8 Immune Support Probiotic, 60 capsules | Florastor Dual Action Probiotic |
|---|---|---|
| Organism type | Multi-strain bacterial preparation | S. boulardii CNCM I-745 yeast |
| PB8 format compared | One capsule per labeled serving | Confirm directions on exact Florastor package |
The organism name is also useful when reporting an unwanted experience to a clinician. Save the actual bottle and lot information rather than describing it only as an immune probiotic.
What the front panel leaves out
One purchaser of the PB8 formula liked the easy-to-swallow, flavorless capsule. That tells a shopper something about administration, but nothing about whether the product prevents illness. If making the purchase on clinical advice, take the named organism and preparation to the pharmacist, especially when the prospective user is seriously ill or immunocompromised.
What customers reported
An Immune Support reviewer said the capsules were easy to swallow and had no noticeable flavor, and liked how many came in the bottle for the price.
Original Amazon review ↗Another reviewer on the Immune Support page said the purchase cost less than their comparison at a vitamin retailer. That was the shopper’s own price comparison.
Original Amazon review ↗“The poduct arrived earlier than expected & the price was very reasonalbe!”
Original Amazon review ↗
Our recommendation
Choose between these only after establishing the intended organism and appropriateness. Broader immune-support wording is insufficient to choose a product for illness.