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High-CFU Probiotic Supplements: Extra Care & Daily Care+

High-CFU probiotics deliver a concentrated dose of live bacteria, and Bio-K+ formulates its probiotic supplements to guarantee that potency not at the time of manufacture, but until the best-before date printed on every capsule. That single distinction matters more than most CFU numbers on a label. A product that starts at 50 billion CFU at manufacture but loses potency sitting on a shelf may deliver far less than promised by the time you take it. With Bio-K+, the number on the label is the number you receive.

Guaranteed Potency Until the Best-Before Date

Extra Care Probiotic Supplements (80 billion CFU) and Daily Care+ Probiotic Supplements (50 billion CFU) both deliver Bio-K+'s three exclusive, synergistic bacterial strains, Lacticaseibacillus casei LBC80R®, Lacticaseibacillus rhamnosus CLR2®, and Lactobacillus acidophilus CL1285®, in targeted-release technology capsule formats that promote digestive health.† Every capsule carries the same guarantee: the CFU count on the label is the CFU count delivered, tracked all the way through to the best-before date rather than the day the product left the manufacturing line.

†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.

Choosing Between 50 Billion and 80 Billion CFU

The 80 billion CFU format offers a more concentrated daily dose for those seeking a higher-potency option. The 50 billion CFU format provides a clinically meaningful potency level for everyday digestive support, with the same three-strain formula and the same best-before date guarantee.† Choosing between them comes down to your personal routine and the guidance of your healthcare professional, not to a fundamentally different product.

Backed by Decades of Clinical Research

This collection draws on more than 30 years of scientific research and 16 published clinical trials, one of the deepest clinical evidence bases of any probiotic brand available in the United States. Bio-K+ tests and formulates every capsule to maintain the CFU count on the label from the day you open the box through to the best-before date, so there are no manufacture-date caveats and no estimated shelf-life losses, just a stated dose you can rely on.†

Most probiotic supplements state a CFU number that was only ever true on the day the product was made. Bio-K+ takes a different approach: what matters is what you receive when you take your daily dose. Backed by strain-specific science and a formula developed entirely in-house from research through to production, the 50 billion and 80 billion CFU options represent potency you can verify against the label, from a brand that has spent more than 30 years building the clinical case for high-potency, high-CFU gut health support. Browse the full range below to find the potency level that fits your routine.†

†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.

Frequently Asked Questions

What does high CFU mean in a probiotic?

CFU stands for colony-forming units, a measurement used to estimate the number of living and viable bacteria. A higher CFU count means more live bacteria per serving, but what matters most is whether that count is guaranteed at the time of use rather than at manufacture. Bio-K+ probiotic supplements guarantee CFU potency until the best-before date, not at the time of manufacture, so you receive the stated dose every time you take it.†

†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.

What is the difference between 50 billion and 80 billion CFU probiotics?

Bio-K+ Daily Care+ (50 billion CFU) and Extra Care (80 billion CFU) probiotic supplements contain the same three exclusive bacterial strains in a targeted-release technology capsule format. The 80 billion CFU option delivers a more concentrated dose for those seeking a higher-potency daily probiotic, while the 50 billion CFU option provides a clinically meaningful level for everyday digestive support.† Both formats guarantee potency all the way until the best-before date, so the number on the label is the dose you receive.

†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.

Why does it matter if CFU is guaranteed until the best-before date?

Most probiotic products state CFU counts at the time of manufacture rather than at the time of consumption. Bacteria naturally decline during storage, so the label number can be significantly higher than what you actually receive by the time you open the bottle. Bio-K+ formulates and tests its probiotic supplements to guarantee CFU potency until the best-before date, so the stated number is the amount delivered when you take it, making it a more reliable measure of the actual dose.†

†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.

Do higher CFU probiotics work better?

Higher CFU counts do not automatically mean better results. Strain specificity and guaranteed potency at the time of use matter as much as the number itself, often more. Bio-K+ builds its probiotic supplements around three clinically studied, exclusive strains supported by 16 published clinical trials, one reason they stand among the best high-potency probiotics on the market. Both the 50 billion and 80 billion CFU formats promote digestive health† through a targeted-release technology delivery system designed to protect live bacteria on the way to your gut.

†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.

Are Bio-K+ high CFU capsules shelf-stable?

Bio-K+ Daily Care+ and Extra Care Probiotic Supplements use targeted-release technology capsule formats designed to protect live bacteria throughout the digestive process. Bio-K+ formulates and tests both products to guarantee CFU potency until the best-before date when stored correctly as directed on the label.† For specific storage recommendations and handling guidance, refer to the product label directly to ensure you always receive the full stated dose at the time of use, not a reduced manufacture-date count.

†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.