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Function Health vs Wild Health

Compare Function Health in San Francisco and Wild Health in Lexington on price, treatment breadth, diagnostics, and travel fit. Both target the same country market, so the real gap is treatment depth, luxury tier, and follow-through. WLC scores them at 66 and 71, with 1/15 versus 2/15 tracked features. Entry pricing starts around USD 499 for Function Health and USD 250 for Wild Health.

Quick Comparison

Function Health
Wild Health
Location San Francisco, United States Lexington, United States
Category Outpatient Outpatient
Luxury Tier Premium Premium
Established 2022 2018
Price Range USD 499 to 499 USD 250 to 5,000
Price Tier $ $
Stay Types day day
Features 1/15 2/15
Treatments 4 5
Programs 1 2
Google Rating N/A 4.2 (35)
WLC Score 66 71

Overview & Philosophy

Function Health and Wild Health may both sit inside the longevity-clinic category, but they solve very different patient problems. Function Health is best understood as an outpatient longevity clinic centered on lifestyle support, while Wild Health is better described as an outpatient longevity clinic centered on regenerative medicine and lifestyle support. That difference shows up quickly in the numbers: World Longevity Clinics scores them at 66 and 71, with 1/15 versus 2/15 tracked longevity features. For broader market context beyond this head-to-head, see our Best Longevity Clinics 2026 ranking. At the feature level, Wild Health differentiates itself with IV Therapy. In practical terms, Function Health fits best for health-curious individuals seeking affordable, comprehensive blood testing as a starting point for health optimization, whereas Wild Health fits best for tech-forward patients who want dna-driven health optimization via telehealth and are comfortable with a subscription model.

Founded in 2022, Function Health operates as a outpatient premium facility in San Francisco, United States (West Coast). Function Health democratizes advanced blood testing by offering 100+ clinically relevant biomarkers at an annual membership price. Their platform provides clear, actionable insights and personalized nutrition recommendations, making comprehensive health data accessible. The clinic offers 1 of 15 core longevity features and provides 4 distinct treatment modalities, including Advanced Bloodwork, Biomarker Panel (100+), Personalized Nutrition, Health Analytics Dashboard, and more. Guests can choose from day options, and the clinic has been recognized as "The most affordable comprehensive blood testing platform available, making advanced biomarker tracking accessible to a broad audience".

Founded in 2018, Wild Health takes a different approach as a outpatient premium facility in Lexington, United States (Southeast). Wild Health combines genomic testing with functional medicine to create highly personalized health plans. Their physician-led programs include DNA analysis, advanced bloodwork, IV therapies, and ozone treatments, all tailored to each patient's genetic blueprint. With 2 of 15 core features and 5 available treatments (including DNA Testing, Advanced Bloodwork, IV Nutrient Therapy, Ozone Therapy), the clinic caters to day guests. It is recognized as "A promising precision medicine concept using genomics-driven protocols via telehealth, with room to improve operational execution".

When comparing these two clinics, several dimensions stand out. Both are located in United States, which simplifies travel logistics for those considering either option. Both operate at the same premium outpatient level, making the comparison especially relevant for prospective patients choosing between similar formats.

Treatments & Programs

Treatment breadth is one of the most important factors when choosing a longevity clinic. Function Health covers 1 of 15 core longevity features tracked by World Longevity Clinics, while Wild Health covers 2 of 15. In terms of specific treatment modalities, Function Health offers 4 distinct treatments compared to Wild Health's 5.

Both clinics share a foundation of 2 common treatments, including Advanced Bloodwork, Personalized Nutrition. Where they diverge is notable: Function Health uniquely offers Biomarker Panel (100+), Health Analytics Dashboard, while Wild Health stands apart with DNA Testing, IV Nutrient Therapy, Ozone Therapy. These differences often reflect each clinic's core philosophy and medical specialization.

Function Health offers 1 structured program: Annual Membership (annual) — Twice-yearly testing of 100+ biomarkers with personalized insights dashboard and clinician support. Key treatments include Advanced Bloodwork, Biomarker Analysis, Personalized Nutrition, Health Dashboard. Wild Health offers 2 programs: Precision Medicine Program (ongoing) — Comprehensive genomic-driven health optimization with dedicated physician, DNA testing, and personalized protocols. Key treatments include DNA Testing, Advanced Bloodwork, Personalized Nutrition, Health Coaching. Optimization Membership (annual) — Ongoing precision medicine with quarterly check-ins, genomic updates, and treatment adjustments. Key treatments include DNA Testing, IV Therapy, Ozone Therapy, Nutrition Planning.

Pricing & Value

Understanding the cost structure is essential when planning a longevity clinic visit, as programs can represent a significant investment in your health. Function Health programs range from USD 499 to 499 (Annual membership $499/year for twice-yearly testing of 100+ biomarkers). The clinic positions itself at the $ price tier with premium accommodations.

Wild Health programs range from USD 250 to 5,000 (Memberships from $250/month; comprehensive programs vary by scope). Positioned at the $ tier with premium standards.

When comparing in EUR-equivalent terms, Wild Health starts at a notably lower price point, approximately 100% less expensive at entry level than Function Health. This price differential may reflect differences in location costs, included amenities, staff-to-guest ratios, or the scope of included treatments rather than clinical quality alone. Our editorial team rated Function Health's value proposition at 5.8/10 and Wild Health's at 7.2/10, considering treatment breadth, quality, and pricing relative to the market.

Location & Facilities

Location plays a significant role in the longevity clinic experience, affecting everything from travel logistics to the healing environment and overall cost structure.

Function Health is located in San Francisco, United States (West Coast), operating as a outpatient facility with a premium positioning. It is staffed by 5 medical professionals. Available stay types include day.

Wild Health is based in Lexington, United States (Southeast), operating as a outpatient facility with a premium positioning. It has 4 medical staff members. Available stay types include day.

On our luxury scale, Function Health scores 3/10 compared to Wild Health's 4/10. For medical technology, Function Health scores 7/10 and Wild Health 5/10. These scores reflect our editorial assessment of each facility's physical environment, equipment, and guest experience.

From a practical standpoint, both clinics are in United States, which means similar visa requirements, currency, and healthcare regulations. The choice between San Francisco and Lexington comes down to personal preference, accessibility from your home base, and the surrounding environment you prefer for recovery and relaxation.

Who Should Choose Which?

Function Health

Ideal for

Health-curious individuals seeking affordable, comprehensive blood testing as a starting point for health optimization

Consider alternatives if

Patients seeking hands-on physician guidance, advanced diagnostics (imaging, genomics), or therapeutic treatments

Wild Health

Ideal for

Tech-forward patients who want DNA-driven health optimization via telehealth and are comfortable with a subscription model

Consider alternatives if

Those who prefer in-person clinical relationships or need predictable scheduling and rapid result turnaround

Feature-by-Feature Comparison

Diagnostics

Full Body MRI
Epigenetic Testing
Telomere Analysis
DEXA Scan
VO2 Max Testing

Regenerative

Stem Cell Therapy
NAD+ Therapy
IV Therapy
Peptide Therapy

Biohacking

Cryotherapy
Hyperbaric Oxygen
Gene Editing
Neurofeedback

Lifestyle

Personalized Nutrition
Sleep Optimization
Function Health
Wild Health

Detailed Feature Analysis

Diagnostics: Neither clinic currently offers diagnostics features in this category (Full Body MRI, Epigenetic Testing, Telomere Analysis, DEXA Scan, VO2 Max Testing), which may be a consideration if these capabilities are important to your longevity goals.

Regenerative: Conversely, Wild Health offers IV Therapy that Function Health lacks. Neither clinic offers Stem Cell Therapy or NAD+ Therapy or Peptide Therapy in this category.

Biohacking: Neither clinic currently offers biohacking features in this category (Cryotherapy, Hyperbaric Oxygen, Gene Editing, Neurofeedback), which may be a consideration if these capabilities are important to your longevity goals.

Lifestyle: Both clinics provide Personalized Nutrition. Neither clinic offers Sleep Optimization in this category.

Overall, Function Health covers 1 of 15 tracked longevity features while Wild Health covers 2. This gives Wild Health the broader feature set, though the right choice depends on which specific features matter most for your health goals.

Editorial Verdict: The Bottom Line

Our editorial team rates Wild Health at 71/100 compared to Function Health's 66/100. While Wild Health scores higher overall, both are respected facilities and the score difference reflects specific strengths rather than an absolute quality gap.

Function Health leads in Clinical Substance (4.5/4), Innovation (6.4/5). Wild Health leads in Treatment Breadth (3.5/2.4), Patient Experience (5.4/3), Value Proposition (7.2/5.8), Methodology (6/4).

Key strengths to consider: Function Health excels at 100+ biomarker panel at $365/year is the most affordable comprehensive testing option available, and strong patient satisfaction ratings across review platforms. Wild Health stands out for genomics-driven precision medicine model that personalizes protocols based on dna analysis, and telehealth delivery makes concierge-style medicine accessible regardless of geography. On the flip side, Function Health's main limitation is primarily a testing platform rather than a clinical longevity practice, with limited physician interaction. For Wild Health, operational execution, including scheduling and result delivery timelines, has drawn patient criticism.

Choose Function Health if you are health-curious individuals seeking affordable, comprehensive blood testing as a starting point for health optimization. Choose Wild Health if you are tech-forward patients who want DNA-driven health optimization via telehealth and are comfortable with a subscription model.

Frequently Asked Questions

Which is better, Function Health or Wild Health?

In our editorial ranking, Wild Health scores 71/100 versus Function Health's 66/100. Better depends on your priorities, especially price, treatment breadth, and travel fit between San Francisco and Lexington. Function Health covers 1/15 longevity features while Wild Health covers 2/15.

How much does Function Health cost compared to Wild Health?

Function Health programs range from USD 499 to 499 (Annual membership $499/year for twice-yearly testing of 100+ biomarkers), while Wild Health programs range from USD 250 to 5,000 (Memberships from $250/month; comprehensive programs vary by scope). In EUR-equivalent terms, Wild Health is approximately 100% more affordable at entry level.

Can you do a day visit at Function Health or Wild Health?

Yes. Both Function Health and Wild Health can accommodate day visits or outpatient appointments, which helps if you want diagnostics first without committing to a multi-day stay.

Which clinic has better diagnostic technology, Function Health or Wild Health?

Function Health offers 0 of 5 core diagnostic technologies (none tracked), while Wild Health offers 0 of 5 (none tracked). Both clinics match in diagnostic technology breadth.

What treatments does Function Health offer that Wild Health doesn't?

Function Health exclusively offers Biomarker Panel (100+), Health Analytics Dashboard, while Wild Health exclusively offers DNA Testing, IV Nutrient Therapy, Ozone Therapy. They share 2 treatments in common, including Advanced Bloodwork, Personalized Nutrition.

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