: A beneficial yeast frequently used to manage diarrhea, especially after antibiotic use.

: Spore-forming bacteria like B. coagulans known for surviving harsh stomach environments. Where to Buy Probiotics

: The most common genus, including strains like L. acidophilus and L. rhamnosus GG .

Most over-the-counter supplements feature one or more of these common bacterial or yeast families:

Yes, you can buy probiotics (OTC) without a prescription. They are widely available as dietary supplements at pharmacies, grocery stores, health food shops, and online. Common OTC Probiotic Strains