ProBiotic-4

$19.09 $5.73

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Swanson ProBiotic-4 is a broad spectrum probiotic delivering 3 billion CFU of beneficial bacteria from four select strains: Bifidobacterium lactis, Lactobacillus casei, Lactobacillus acidophilus and Bifidobacterium bifidum—all in convenient, easy-to-take vegan capsules. ProBiotic-4 supports bowel regularity and a healthy microbiome. Features prebiotic fructooligosaccharides to feed the probiotics.


Supplement Facts

Serving Size 1 Vegan Capsule

Servings Per Container 60

Amount Per Serving % Daily Value
FOS (fructooligosaccharides) 125 mg *
ProBiotic-4 Probiotic Blend (3 billion CFU†) 11.12 mg *
Bifidobacterium lactis 1.5 billion CFU† *
Lactobacillus casei 750 million CFU† *
Bifidobacterium bifidum 375 million CFU† *
Lactobacillus acidophilus 375 million CFU† *

*Daily Value not established.
†Contains 3 billion CFU (colony forming units) when manufactured.

Other Ingredients: Microcrystalline cellulose (plant fiber), vegan capsule (hypromellose) (EMBO Caps® AP), silica, magnesium stearate.

Suggested Use: As a dietary supplement, take one vegan capsule in the evening with food and water.

Warning: For adults only. Consult your healthcare provider before using this or any product if you are pregnant or nursing, taking medication or have a medical condition.

Storage Instructions: Keep out of reach of children. Do not use if seal is broken. Store in a cool, dry place.

Trademark Information: EMBO Caps® AP and logo are registered trademarks of Suheung Co. LLC.




  1. What Are the Benefits of Probiotic Supplements?
    Probiotic supplements provide beneficial bacteria that help support a healthy balance of microorganisms in the digestive tract. They are commonly used to support digestive health, gastrointestinal wellness, and a healthy gut microbiome. Many people incorporate probiotics into their daily wellness routines to help maintain overall digestive function and well-being.
  2. How Many CFUs Do I Need?
    The ideal number of CFUs, or Colony Forming Units, depends on the specific probiotic strain, product formulation, and individual wellness goals. Higher CFU counts are not always better, as different probiotic strains offer unique benefits. Choosing a high-quality probiotic supplement and following the suggested serving size on the product label can help support your daily probiotic needs.
  3. What Is the Difference Between Probiotic Strains?
    Different probiotic strains have unique characteristics and may support different aspects of digestive and gastrointestinal wellness. Common strains belong to groups such as Lactobacillus and Bifidobacterium, each of which contains numerous individual strains. Because probiotic strains can function differently, many supplements include multiple strains to provide broader support for digestive health and a healthy gut microbiome.
  4. Do Probiotics Need Refrigeration?
    Not all probiotics require refrigeration. Some probiotic supplements are formulated to remain stable at room temperature, while others may require refrigeration to help maintain potency. Always follow the storage instructions on the product label to ensure the product is stored properly and retains its quality throughout its shelf life.
  5. Is Swanson Probiotic 4 Suitable for Special Diets?
    Yes. Swanson Probiotic 4 is vegan, non-GMO, gluten free, and dairy free, making it a convenient choice for a variety of dietary preferences and lifestyles. Always review the product label for the most current ingredient, allergen, and dietary information before use.