Classic · 2 capsules a day

PB8 Original Probiotic

Q: How do you take PB8 Original Probiotic?

The Original label says: As a dietary supplement for adults, take two (2) capsules per day. Each Original serving holds 14 billion CFU at the time of manufacture, in a capsule.

Q: How long does a bottle of PB8 Original Probiotic last you?

At two capsules a day, the Original bottles last: 30 days for 60 capsules, 60 days for 120 capsules, 120 days for 2 bottles × 120 capsules and 180 days for 3 bottles × 120 capsules.

Q: Do you need to refrigerate PB8 Original Probiotic?

The Original label says: Store in a cool, dry place; best if refrigerated after opening.

Q: What is in PB8 Original Probiotic besides the cultures?

8 strains, and capsule and inulin. It contains no gluten, eggs, milk, peanuts, tree nuts, or soy.

Helps support digestive health.*

4.7 (4,267) 4.7 out of 5 from 4,267 ratings

8 strains with inulin from chicory root. 2 capsules a day.

14BCFU per serving
8strains on the label
2capsules a day
30–180days a bottle lasts

The button opens the checkout page in a new tab, and this page stays open.

No milk
No soy
No gluten
No eggs
No peanuts or tree nuts

Overview

What PB8 Original Probiotic is

PB8 Original is the formula the name comes from: eight strains of Lactobacillus and Bifidobacterium, 14 billion CFU in a serving of two capsules, and inulin from chicory root as a built-in prebiotic. It is the classic capsule, made without milk, soy, gluten, eggs, peanuts or tree nuts. A 60-capsule bottle is a month at the label serving and the 120-capsule bottle is two months. The two- and three-bottle packs stretch that to four and six.

PB8 Original Probiotic is one of six formulas in the PB8 formulas, and the comparison page sets it next to the other five.

Who it is for

Adults who want a daily probiotic for digestive support and are happy to take two capsules a day.

What the label says

Helps support digestive health.*

Serving

Original: 2 capsules a day, capsule, 14 billion CFU per serving.

*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.

Supplement Facts

The PB8 Original Probiotic label, line by line

Every line of the Original panel, typed from the bottle in the order it is printed: 8 strains, each with a dot for its genus as on our strain map.

Supplement Facts

Serving Size 2 Capsules
Servings Per Container 60

Amount Per Serving		% Daily Value
Total Carbohydrate	< 1 g	< 1%†
Proprietary Probiotic Blend - 14 billion CFU††	755 mg	**

Blend: microcrystalline cellulose, the eight strains below, magnesium stearate and silicon dioxide.

Lactobacillus acidophilus La-14®
Bifidobacterium lactis Bl-04®
Lactobacillus plantarum UF-217
Bifidobacterium lactis BLa80
Bifidobacterium lactis HN019™
Lactobacillus rhamnosus GG
Bifidobacterium lactis Bi-07®
Lactobacillus acidophilus NCFM®

† Percent Daily Values are based on a 2,000 calorie diet. ** Daily Value not established.

Other ingredients: Capsule and Inulin.

Contains no: gluten, eggs, milk, peanuts, tree nuts, or soy.

†† 14 billion good bacteria per serving at time of manufacture. Bacteria count will vary after time of manufacture.

Store in a cool, dry place; best if refrigerated after opening.

Strain trademarks. The trademarks for the probiotic strains are trademarks or registered trademarks of International Flavors & Fragrances Inc. or its affiliated companies.

About the count. 14 billion good bacteria per serving at time of manufacture. Bacteria count will vary after time of manufacture.

Also on other PB8 labels

Lactobacillus acidophilus La-14®Vegetarian
Bifidobacterium lactis Bl-04®Vegetarian Immune Synbiotic 3-1 Women's
Lactobacillus plantarum UF-217Vegetarian Immune
Bifidobacterium lactis BLa80Vegetarian Immune
Bifidobacterium lactis HN019™Vegetarian Immune Synbiotic 3-1
Lactobacillus rhamnosus GGVegetarian Immune Synbiotic 3-1 Women's Vaginal
Bifidobacterium lactis Bi-07®Vegetarian Immune
Lactobacillus acidophilus NCFM®Vegetarian Immune

Every strain of this label appears on at least one other PB8 formula.

How to take

Taking and storing PB8 Original Probiotic

Suggested use

As a dietary supplement for adults, take two (2) capsules per day.

Storage

Store in a cool, dry place; best if refrigerated after opening.

Warning, as printed on the labelIf you have a medical condition, are on medication or are pregnant or nursing, please seek the advice of a qualified health care professional before using. Take only as directed. Do not exceed suggested dosage. Do not use if inner seal is broken or missing. Keep out of the reach of children.

This page is general product information, not medical advice. Read the label of the product you use, and ask your doctor or pharmacist before you start a supplement if you have a medical condition, take medication, or are pregnant or nursing.

What the public sources say

NCCIH: Probiotics, Usefulness and Safety. Different types of probiotics may have different effects, and the risk of harm is greater in people with severe illnesses or compromised immune systems. Read October 25, 2026.
FDA: Structure/Function Claims. A structure/function claim is not pre-approved by the FDA and must come with the statement that the FDA has not evaluated it. Read October 25, 2026.
ISAPP: Probiotics. Probiotics are live microorganisms that confer a health benefit in adequate amounts, and different strains have different effects. Read October 25, 2026.

Each of these sources is linked in our guide “How to read a probiotic Supplement Facts label, line by line”.

Sizes

PB8 Original Probiotic bottle sizes

4 sizes of the Original, from 30 to 180 days at 2 capsules a day, with the price per day of each.

PB8 Original Probiotic sizes
Size	Lasts	Price	Per day
60 capsules	30 days	$8.99	$0.30 a day
120 capsules	60 days	$19.49	$0.32 a day
2 bottles × 120 capsules	120 days	$34.23	$0.29 a day
3 bottles × 120 capsules	180 days	$49.52	$0.28 a day

Compare

PB8 Original Probiotic next to the closest PB8 formulas

Vegetarian: Same eight strains and count in a plant cellulose capsule. Synbiotic 3-1: One delayed release capsule with 65 billion CFU and 31 strains.

The PB8 formulas side by side
Formula	Original14B	Vegetarian14B	Synbiotic 3-165B
CFU per serving at manufacture	14 billion	14 billion	65 billion
Strains on the label	8	8	31
Serving	2 capsules	2 capsules	1 Delayed Release capsule
Servings per bottle	60	60	30
Capsule	Capsule	Vegetarian capsule	Delayed release capsule
Prebiotic	Inulin	Inulin	Fiber blend, 100 mg
Postbiotics	Not listed	Not listed	Yes
After opening	Best refrigerated	Best refrigerated	Refrigerate
For	Adults	Adults	Adults
Lowest price per day	$0.28 a day	$0.32 a day	$1.33 a day
Buy

Questions

Questions about PB8 Original Probiotic

How do you take PB8 Original Probiotic?

The Original label says: As a dietary supplement for adults, take two (2) capsules per day. Each Original serving holds 14 billion CFU at the time of manufacture, in a capsule.

How long does a bottle of PB8 Original Probiotic last you?

At two capsules a day, the Original bottles last: 30 days for 60 capsules, 60 days for 120 capsules, 120 days for 2 bottles × 120 capsules and 180 days for 3 bottles × 120 capsules.

Do you need to refrigerate PB8 Original Probiotic?

The Original label says: Store in a cool, dry place; best if refrigerated after opening.

What is in PB8 Original Probiotic besides the cultures?

8 strains, and capsule and inulin. It contains no gluten, eggs, milk, peanuts, tree nuts, or soy.

More from PB8

All formulas

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 · 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