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Single-Strain Formula

Bifidobacterium adolescentis

A Human Strain formula for a considered daily microbiome routine.

What’s inside

  • 4 billion CFUOne focused B. adolescentis H501 strain per capsule.
  • Single-strain clarityA straightforward formula built around one selected strain.
  • Simple daily formatOne capsule daily, as directed on the label.
  • 60-day supply60 servings per container.
$39.99

How subscription works

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One-time order

A single shipment, with no recurring delivery.

Select the option that fits your routine.

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Supplement facts

Serving size: 1 capsule · Servings per container: 60

Total probiotic activity: 4 billion CFU of Bifidobacterium adolescentis H501.

† Daily Value not established.

Ingredients & allergy advice
This formula contains Bifidobacterium adolescentis H501. Review the product label before use if you have questions about ingredients or allergens.
How to take
Take one capsule daily, or use as directed on the product label.
What to expect
Human Strain products are designed for everyday routine support. Individual experiences vary; consistency and following the label directions matter.
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Human Strain Bifidobacterium Synbiotic on a bright science desk

Formula design

A clear formula for a consistent routine.

Every Human Strain product is designed as a straightforward daily routine, with its ingredients and format presented clearly.

We make it easy to understand the formula, use it as directed, and decide whether it fits your routine.

Human-strain foundation.

Formula design begins with carefully selected Bifidobacterium strains and an ingredient rationale that is easy to review.

Formula transparency.

Product pages and labels present the ingredients, product format, and support information without unnecessary noise.

Built for a daily routine.

Use as directed on the label as part of a consistent daily routine that works for you.

Make room for a steadier daily routine.

A focused Bifidobacterium adolescentis formula in a straightforward daily format.

  • Focused around one Bifidobacterium strain.
  • Single-strain formula with a clear ingredient rationale.
  • Simple 30-capsule format for daily use as directed.
Bifidobacterium adolescentis
Hand holding one daily capsule

Your daily format

As easy as 1 daily capsule.

Take one capsule as directed and make it part of the daily routine that works for you.

For serving details and ingredients, refer to the product label.

Published research context

What a two-week study measured.

In a randomized, placebo-controlled study of the Bifidobacterium adolescentis strain used in this formula, adults with lactose maldigestion recorded daily digestive symptom scores during a two-week supplementation period.

88%lower reported diarrhea score
80%lower reported fecal-urgency score
53%lower reported bloating score

Exploratory comparisons versus placebo in this two-week study; the individual symptom comparisons did not reach statistical significance. Results are not a promise of individual outcomes.

Ramakrishnan M, et al. Gut Microbes Reports (2025).

Two-week comparison

Study groups compared

Reported mean daily score. Lower is better.

B. adolescentisPlacebo
Diarrhea88% lower vs placebo
B. adolescentis 0.04
Placebo 0.35
Bathroom urgency80% lower vs placebo
B. adolescentis 0.14
Placebo 0.68
Bloating53% lower vs placebo
B. adolescentis 0.30
Placebo 0.65

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