Our Science

The science of personal
health understanding.

One marker rarely tells the full story. OneSelf brings together blood biomarkers, DNA signals, microbiome data, wearable readings and self-reported context — and reads them as a whole. That is where real understanding begins.

The OneSelf Model

Five signal categories.
One biological picture.

Most health tools look at one thing at a time. OneSelf is designed around a different premise: that biological understanding emerges from the relationship between signals — not from any single one in isolation.

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Blood biomarkers
The most direct quantitative window into biological function — measured from blood analysis through accredited partner laboratories.
Hormonal markers — cortisol, oestrogen, testosterone Iron, ferritin and haematological status Thyroid and metabolic panels Inflammatory and immune signals Vitamins, minerals and cofactors Glucose regulation and lipid panels
Quantitative · Periodic
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DNA signals
Genomic variants that may help indicate how your individual biology is predisposed to respond to diet, lifestyle, stress and environment — studied in relation to metabolic, hormonal and nutritional pathways.
Metabolic processing variants Nutrient absorption — studied in relation to absorption efficiency Sleep architecture markers Stress and cortisol response Hormonal metabolism variants Inflammatory response markers
Static · Lifelong context
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Microbiome
The composition of gut microbial populations — studied in relation to energy regulation, immunity, mood and metabolic function. An active area of research with growing clinical relevance.
Gut microbial diversity index Beneficial and commensal species Short-chain fatty acid producers Inflammatory microbial markers
Dynamic · Modifiable
Wearable signals
Continuous data from devices the member already uses — adding a real-time physiological layer to the picture that blood tests alone cannot provide.
Heart rate variability and autonomic tone Sleep stages and architecture Resting and recovery metrics Daytime activity and stress patterns
Continuous · Real-time
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Self-reported context
What the member observes and experiences — validated as a meaningful signal when read alongside objective biological markers.
Subjective energy and fatigue patterns Sleep quality and disruption Mood, stress and cognitive clarity Digestive and gut comfort Lifestyle, diet and exercise context
Qualitative · Periodic

Signal availability varies by membership tier and location. Not all categories are required to begin. DNA signals, microbiome and wearable data are optional additions to the signal picture.

Context is everything

A result without context
is just a number.

Standard blood test reports tell you whether a marker sits within a population reference range. They rarely tell you what that marker means in the context of your other signals — your genetics, your sleep, your gut health, your stress load.

The biological areas that matter most to how you feel — energy, mood, weight, sleep, recovery — are almost never explained by a single marker. They are patterns that emerge from the relationship between signals, read over time.

OneSelf is designed to surface those patterns. Not to diagnose — but to help you, and where relevant a qualified practitioner, understand what may be worth a closer look.

Results alone — what most people receive
Ferritin
In range
TSH (Thyroid)
In range
Cortisol
Low-normal
Vitamin D
In range
HRV (wearable)
Normal
Individually — nothing to act on
vs
OneSelf Intelligence™ — Signal Picture
Cortisol is low-normal — but read alongside a DNA variant affecting cortisol clearance and a trend of declining HRV, the pattern suggests autonomic strain worth exploring.
Member self-reports persistent fatigue and disrupted sleep — consistent with the signal picture emerging from the objective markers.
Ferritin is in range — but the lower quarter of the range combined with reported fatigue makes it a signal worth monitoring at the next check.
Pattern identified — flagged for practitioner review
Three signal categories point in the same direction. Not a diagnosis. Worth a practitioner conversation.

Illustrative example · Not a real member case · Not a diagnosis

The Engine

OneSelf Intelligence
organises. Surfaces.
Does not decide.

OneSelf Intelligence™ is the analytical layer that reads signals across all five categories — not independently, but in relation to each other. It identifies patterns, surfaces areas of potential relevance and organises context.

What it does not do: diagnose, treat, or autonomously issue recommendations. That responsibility belongs to qualified practitioners — and is structurally enforced by the platform's tier architecture.

01
Multi-signal analysis
Patterns are identified across all connected signal categories simultaneously — not one marker at a time. Biological meaning often lives in the space between signals.
02
Longitudinal awareness
A single reading has limited meaning. OneSelf Intelligence™ is designed to track signals over time — so that trends, directional changes and drift all become part of the picture.
03
Calibrated confidence
The system distinguishes between strong patterns supported by multiple signal sources and weaker signals supported by fewer. Confidence is surfaced, not hidden.
04
Defined limits
OneSelf Intelligence™ does not produce diagnoses, treatment plans or autonomous health claims. It surfaces context for human review. The boundary between those two things is architectural, not aspirational.
Signal Layer
How OneSelf Intelligence™ processes your picture
01
Ingest connected signals
All available signal categories are connected — blood results, DNA variants, microbiome data, wearable readings and self-reported context.
02
Read signals in relation
Each signal is assessed in the context of all others — not in isolation against a population range. Relationships and directional patterns are identified.
03
Surface patterns with confidence weighting
Where patterns emerge across multiple signal categories, they are surfaced for review with an indication of supporting evidence strength.
04
Flag for human review
Identified patterns are passed to the member's signal picture and, at Act tier, queued for practitioner review before any guidance is issued.
The Human Layer

Science needs
judgement.

OneSelf Intelligence™ can read the data. Qualified practitioners carry the responsibility for what it means. This is not a regulatory formality — it is the design of the service. Intelligence without accountability is just noise.

01
No action guidance without review
At Act tier, every lifestyle, nutritional or supplement recommendation has been reviewed by a qualified practitioner before it reaches the member. OneSelf Intelligence™ does not issue action guidance autonomously.
02
Practitioners are accredited and independent
OneSelf does not employ practitioners. They are accredited independent professionals whose credentials are verified before joining the platform. They carry full professional responsibility for their review.
03
Tier-structured access
Explore and Understand tiers provide educational context and signal information. Practitioner-reviewed guidance is exclusive to Act tier — not a premium upsell, but a structural safeguard.
04
Education, understanding, then action
The OneSelf journey is sequenced deliberately: Ask → Understand → Act → Improve. Members build understanding before action is offered. The sequence is protective, not bureaucratic.
"AI can read the data. Practitioners carry the responsibility."
That line is not a disclaimer added at the end of a product description. It is the architectural principle from which OneSelf's service model is built. OneSelf Intelligence™ surfaces what may be worth a closer look. A qualified practitioner decides whether it is, what it means, and what — if anything — should follow.
Act tier — practitioner review flow
Signal picture generated by OneSelf Intelligence™
Assigned practitioner reviews the full picture
Guidance issued under practitioner review
Member receives context, not instructions
P
Your OneSelf Practitioner
Assigned at Act tier · Accredited & independent
Act tier

Illustrative · Practitioner details are illustrative until consented real profiles are available

Our Approach

Evidence-informed.
Not claim-driven.

OneSelf is built to help members understand their biology with honesty — not to sell them confidence they haven't earned. That means being transparent about what signals can and cannot tell you, and about where the evidence is strong and where it is still emerging.

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Signal confidence, not certainty
OneSelf Intelligence™ surfaces patterns with an indication of the evidence supporting them. Strong multi-signal patterns are treated differently from weaker single-source observations. Members see the confidence, not just the conclusion.
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Peer-reviewed foundations
The signal categories and analytical frameworks used by OneSelf Intelligence™ are grounded in peer-reviewed research across endocrinology, nutritional science, genomics and microbiome science. We do not make scientific claims we cannot substantiate. An evidence standards reference will be published at oneself.com/evidence as the platform matures.
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No diagnostic claims
OneSelf does not diagnose conditions, diseases or disorders. Signal patterns are educational and informational in nature. The word "diagnosis" does not appear in member-facing outputs because it does not apply to what OneSelf does.
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Emerging science acknowledged
Fields like microbiome science and genomic wellness are evolving rapidly. OneSelf acknowledges this — surfacing what the evidence currently supports, and being explicit when an area is still actively researched rather than settled.
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Practitioner-governed outputs
At Act tier, any guidance that reaches a member has been reviewed by an accredited practitioner before delivery. Scientific intelligence plus human judgement is the model — not one or the other.
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Population context, personal baseline
Reference ranges have their place — but over time, your own longitudinal baseline is a more meaningful reference than a population average. OneSelf tracks both, so members understand where they stand relative to each.
OneSelf is not
Designed to diagnose, treat or replace medical advice
A substitute for advice from your own doctor
An automated health recommendation engine
A platform making deterministic health claims
A supplement shop dressed as health science
OneSelf is
A personal health understanding platform
An evidence-informed signal analysis system
A platform where practitioners govern all action guidance
A tool for understanding your biology before it becomes urgent
Transparent about what signals can and cannot tell you
Where Available

Precision formulations
as a consequence
of understanding.

For members whose signal picture supports it — and where a practitioner has reviewed and approved the pathway — OneSelf may offer access to clinical-range supplement formulations developed in response to the member's specific signal context.

This is not the primary OneSelf offering. It is a consequence of the signal picture — not the starting point for it. Formulations are offered downstream of understanding, not as a substitute for it.

Important
Precision formulations are available where the member's signal picture supports it, subject to practitioner review and approval, availability by location, and applicable regulatory requirements. Formulations are not available to all members and are not offered at every tier.
Formulation pathway
Where available
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Signal picture reviewed
OneSelf Intelligence™ identifies nutritional and supplementary signals across your connected signal categories.
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Practitioner approves pathway
Your assigned practitioner reviews the signal picture and determines whether a formulation pathway is appropriate for your biology.
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Formulation developed
Where approved, a clinical-range formulation is developed in response to your specific signal picture — not a generic supplement stack.
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Signal response tracked
Subsequent signal checks inform future practitioner review and formulation adjustments — not a one-time intervention but an evolving picture.
Formulations are manufactured through accredited partner facilities where available. Subject to location, practitioner review and regulatory requirements. Not available to all members.
Scientific & Clinical Advisors

Guided by independent
scientific expertise.

OneSelf is guided by an independent group of advisors — clinicians, researchers and subject matter experts who help shape the scientific frameworks, validate methodologies and ensure the platform's approach remains evidence-aligned, ethical and clinically sound.

Illustrative advisor profiles — representative of the disciplines and specialties OneSelf draws from.

Dr. Elena Marchetti, ND
Integrative Endocrinology & Hormonal Health
Dr. David Nguyen, MBBS FRACGP
Anti-Aging & Longevity Medicine
Dr. Sophie Anderson, MBBS FRACP
Integrative Paediatrics & PANS/PANDAS
Dr. Camille Dubois, MD FRANZCOG
Reproductive & Maternal Health · Perimenopause
Prof. Arun Patel, PhD
Nutritional Biochemistry & Cardiometabolic Research
Illustrative advisor profiles representing the clinical and research disciplines that inform the OneSelf framework. Names and portraits are illustrative only.

Understanding your biology
begins with a question.

Create a free Explore account. No test required. No credit card. The signal picture begins when you're ready to build it.

Begin your journey → How it works → Free account · No commitment