Every PB8 label is printed in full on its product page: strains, CFU, serving and storage.

One capsule a day

PB8 once daily probiotic

Three of our six labels ask for one capsule a day. They differ in the count, the capsule and who they are for.

3formulas
15–65BCFU per serving
$0.42lowest per day

Classic · 1 capsule a day

PB8 Immune Support Probiotic

15 billion CFU and 10+ strains in one capsule

4.7 (320) 4.7 out of 5 from 320 ratings

Regular price$25.49 $0.42 a day

60 capsules

3-in-1 · delayed release

PB8 Synbiotic 3-1 Probiotic

65 billion CFU, 31 strains, prebiotic fiber

4.7 (23) 4.7 out of 5 from 23 ratings

Regular price$39.99 $1.33 a day

30 capsules

3-in-1 · for women

PB8 Women's Probiotic

50 billion CFU, 27 strains incl. RC-14 and GR-1

4.6 (19) 4.6 out of 5 from 19 ratings

Regular price$39.99 $1.33 a day

30 capsules

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

The count you read on each seal is per serving, and here a serving is one capsule. Synbiotic 3-1 has the most, 65 billion CFU and 31 strains, in a bottle of 30. Women's has 50 billion and 27 strains, also 30 to a bottle. Immune Support has 15 billion and more than ten strains, and its bottle of 60 lasts two months.

The two delayed release formulas want the refrigerator once the bottle is open. Immune Support is a classic capsule, and a cool, dry cupboard suits it, the place the other classic formulas ask for on their labels.

All three of the Immune, Synbiotic 3-1 and Women's formulas belong to PB8 probiotics, and each prints its full label on its own page.

PB8 once daily probiotic: the formulas side by side

The PB8 formulas side by side
FormulaImmune15BSynbiotic 3-165BWomen's50B
CFU per serving at manufacture15 billion65 billion50 billion
Strains on the label31 (sold as 10+)3127
Serving1 capsule1 Delayed Release capsule1 Delayed Release capsule
Servings per bottle603030
CapsuleCapsule (hypromellose)Delayed release capsuleDelayed release capsule
PrebioticAcacia, oat hull fiberFiber blend, 100 mgFiber blend, 285 mg
PostbioticsNot listedYesYes
After openingNo line printedRefrigerateRefrigerate
ForAdultsAdultsWomen 18+
Lowest price per day$0.42 a day$1.33 a day$1.33 a day
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Questions

Questions about PB8 once daily probiotic

Which PB8 formulas do you take once a day?

Immune Support (15 billion CFU), Synbiotic 3-1 (65 billion) and Women's (50 billion) are one capsule a day. The Original, Vegetarian and Vaginal formulas are two capsules.

Which once-daily PB8 has the most CFU for you?

The Synbiotic 3-1: 65 billion CFU and 31 strains in one delayed release capsule, at the time of manufacture.

How long does a once-daily PB8 bottle last you?

Immune Support has 60 capsules, two months. The Synbiotic 3-1 and Women's bottles have 30, one month.