Function Health vs Peptide Sciences
A detailed head-to-head comparison of Function Health and Peptide Sciences — 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
Peptides0
ConsultationAsync Telehealth
Lab TestingNo
Shipping2-5 business days
Pros
- Research-grade peptide purity
- Full spectrum peptide availability
- Third-party purity testing
- Fast shipping (2-5 days)
- Established research supplier
- Competitive research pricing
Cons
- Research use only - not for human consumption
- No medical supervision or guidance
- No prescription or consultation services
- Legal gray area for personal use
- Quality control varies by batch
Pros & Cons
Peptide Pricing Comparison
| Peptide | Function Health | Peptide Sciences |
|---|---|---|
| Semaglutide | Price unavailable | Not offered |
| Tirzepatide | Price unavailable | Not offered |
Frequently Asked Questions
Is Function Health or Peptide Sciences better?
Function Health offers 2 peptides and hybrid consultations. Peptide Sciences offers 0 peptides and async telehealth consultations. The best choice depends on which peptides you need, your budget, and preferred consultation model.
Which is cheaper, Function Health or Peptide Sciences?
See the pricing table above for a detailed comparison.