Function Health vs K Health
A detailed head-to-head comparison of Function Health and K Health — pricing, peptides, consultation models, and patient reviews.
At a Glance
RatingNo reviews
Starting PriceN/A
Peptides2
ConsultationHybrid
Lab TestingNo
Shipping3-5 business days
Pros
- 100+ biomarker panel at ~$499/year is genuinely competitive
- Testing-first approach means GLP-1 prescriptions (and other treatments) are grounded in actual metabolic data, not just a questionnaire
- Physician interpretation built into results makes the data actionable for patients without a clinical background
- Strong credibility through association with physicians like Dr. Mark Hyman and the longevity/preventive medicine community
- Annual retesting creates a longitudinal health picture that most patients have never had access to before
- Platform is useful independent of any prescription
Cons
- Not designed for patients who simply want a fast path to a GLP-1 prescription
- The annual membership fee (~$499) is charged before any prescriptions are issued, which may not appeal to patients primarily motivated by medication access
- GLP-1 prescription availability is secondary to the testing mission and should be verified
- The platform skews toward patients who are health-data-oriented; patients who find extensive lab data overwhelming or anxiety-inducing may not enjoy the experience
- Geographic availability for prescription services may be more limited than for testing
RatingNo reviews
Starting PriceN/A
Peptides2
ConsultationHybrid
Lab TestingNo
Shipping3-5 business days
Pros
- Large clinician network with broad state coverage
- AI-assisted intake reduces wait times and keeps membership costs lower
- Primary care breadth means GLP-1 treatment exists alongside management of related conditions (diabetes, hypertension)
- Transition toward branded GLP-1s aligns with current FDA enforcement, reducing regulatory risk for patients
- Asynchronous model is flexible for patients with busy schedules
Cons
- Medication costs are not bundled
- Async-first model is less suited to patients who want regular video face time with their provider
- AI triage layer, while efficient, may feel impersonal compared to direct clinician intake
- Compounded semaglutide availability is uncertain post-FDA enforcement; patients seeking lower-cost compounded options may need to look elsewhere
- Not a dedicated weight management platform
Pros & Cons
Peptide Pricing Comparison
| Peptide | Function Health | K Health |
|---|---|---|
| Semaglutide | Price unavailable | Price unavailable |
| Tirzepatide | Price unavailable | Price unavailable |
Frequently Asked Questions
Is Function Health or K Health better?
Function Health offers 2 peptides and hybrid consultations. K Health offers 2 peptides and hybrid consultations. The best choice depends on which peptides you need, your budget, and preferred consultation model.
Which is cheaper, Function Health or K Health?
See the pricing table above for a detailed comparison.