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Clinical Grade Probiotics

Clinical Grade - Human Strain Probiotics

Native biology restored. Select a strain to learn more.

The Keystone of Youth

Reclaim Your Native Biology

Bifidobacterium adolescentis is the most abundant beneficial bacteria in healthy centenarians. It is also the first to decline as we age. Restore the keystone of your gut microbiome.
The Difference

Not Just a Probiotic. A Human Strain.

Most probiotics are transient tourists—derived from soil or dairy—that pass through your system without staying.
  • Native to You: Evolved to live in the human gut.
  • Permanent Colonization: Adheres to the intestinal lining.
  • Host Compatible: Speaks your body's biological language.
TRANSIENT (Passes Through) HUMAN STRAIN (Colonizes) Adheres & Persists to Gut Lining

Power Your Cells From Within

Boosts NAD+

Supports mitochondrial efficiency and cellular energy production.

Combats Oxidative Stress

Reduces free radical damage associated with cellular aging.

Genomic Stability

Supports the biological mechanisms that maintain DNA integrity.

CELLULAR ENERGY
Key Insight

The "Missing" Microbe

Science shows a direct correlation between the abundance of Bifidobacterium adolescentis and healthy aging. By age 50, typical populations of this strain drop by nearly 60%, leaving a gap in your metabolic defense.
B. adolescentis B. longum B. bifidum B. pseudocatenulatum B. breve
DIVERSITY STATUS
Healthy
Dysbiosis
Low High Diversity Score Birth Elderly AGE RANGE Resilient Ecosystem
Low High Diversity Score Birth Elderly AGE RANGE Diversity Collapse
GUT MICROBIOME BRAIN / CNS VAGUS NERVE SIGNALING
Neuro-Active

Calm The Mind via The Gut

B. adolescentis is a potent producer of GABA (Gamma-Aminobutyric Acid), the brain's primary calming neurotransmitter. By stimulating the Vagus Nerve, it helps modulate the stress response and promotes a balanced mood.

Clinical Grade Purity

We don't hide behind "proprietary blends." You get a therapeutic dose of a single, genetically verified Human Strain.
6B CFU Per Capsule
100% Human Origin
0 Allergens
The Architecture of Aging

The Arc of a Healthy Life

What is a Human Strain?

Unlike transient probiotics found in yogurt or soil (which pass through the gut), Human Strains are native symbionts. We are inoculated with them at birth. They are genetically adapted to colonize the human gut, adhere to the intestinal lining, and persist long-term to drive foundational health.

Aging is a multifactorial decline in physiological function. Research shows that healthy older adults and centenarians maintain greater abundances of Bifidobacterium species compared to unhealthy individuals. Decline is not inevitable; it is a variable we can influence.
9,000+ Samples Analyzed
28 Countries Mapped
High Med Low 0 20 40 60 80+ AGE (YEARS)
Healthy Aging
Typical Decline

Fig 1. Abundance of the top 10 Bifidobacterium species in healthy vs. unhealthy individuals.

The Foundational 10

While many species exist, these 10 are consistently present from infancy to late life in healthy human populations.

B. adolescentis

Primary Benefit

Enhances mitochondrial function via NAD+ boosting, strengthens gut barrier, and produces GABA for neuro-calm.

B. longum (infantis)

Primary Benefit

Regulates glucose and fat metabolism, modulates inflammatory cytokines, and enhances immune defense.

B. bifidum

Primary Benefit

Aids carbohydrate digestion, strengthens mucosal immunity, and reduces systemic inflammation.

B. breve

Primary Benefit

Modulates appetite through GLP-1 signaling and protects against neuroinflammation and oxidative stress.

B. pseudocatenulatum

Primary Benefit

Improves blood lipid profiles and modulates mood via gut-brain signaling and GABA pathways.

B. angulatum

Primary Benefit

Produces GABA, modulates immune response, and helps maintain gut microbial balance.

B. animalis

Primary Benefit

Modulates the immune system, reduces allergy risks, and may improve cognitive health.

B. catenulatum

Primary Benefit

Provides liver protection, supports gut barrier, and offers anti-inflammatory effects.

B. dentium

Primary Benefit

Synthesizes GABA and may alleviate abdominal pain through reduction of visceral sensitivity.

B. ruminantium

Primary Benefit

A transient member typically acquired via environmental exposure.

Get In Touch

Start a Conversation

Have questions about the Human Strain protocol? Our science team is here to help guide your longevity journey.

We typically reply within 1–2 business days.

General Support hello@humanstrain.com
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