1st Optimal vs Rex MD
An in-depth comparison of two leading GLP-1 Providers
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1st Optimal
Best for Patients wanting GLP-1 therapy within a lab-driven functional-medicine programRex MD
Best for Men wanting a flat-fee, all-inclusive branded GLP-1 program nationwideStarting at $199/mo
Side-by-Side Comparison
| Feature | 1st Optimal | Rex MD |
|---|---|---|
| Overall Score | 6.7/10 | ✓7.2/10 |
| Starting Price | — | $199/mo |
| Editorial Rating | 3.4 ★ /5 | ✓3.6 ★ /5 |
| Features | 8 features | 8 features |
| States Available | 0 | 0 |
| Compounded | — | — |
| Brand Name | — | ✓ Yes |
| FSA/HSA Accepted | — | — |
| FDA Warnings | None | None |
Pros & Cons
1st Optimal
Pros
- ✓Offers both semaglutide and tirzepatide with injectable and oral formats
- ✓Functional-medicine approach with at-home labs and blood-work interpretation
- ✓Unlimited coaching and ongoing support included
- ✓No long-term contracts
- ✓Board-certified doctors and nurse practitioners referenced
Cons
- ✗No public monthly pricing disclosed
- ✗No published state availability list
- ✗Compounded vs branded sourcing not clarified on site
- ✗Pricing only revealed after quiz or consultation
Rex MD
Pros
- ✓Flat $199/mo program bundles consult, medication and overnight shipping
- ✓Brand-name semaglutide and Zepbound vials, not just compounded
- ✓Serves all 50 states, fully online
- ✓LegitScript certified with US-based, state-licensed providers
- ✓Backed by parent company LifeMD
Cons
- ✗Does not accept insurance
- ✗Marketed primarily to men via a men's-health platform
- ✗Zepbound vial cost rises with dose titration
- ✗Branded-only program costs more than compounded options
Our Verdict
Rex MD edges out 1st Optimal with a higher overall score of 7.2/10 and is particularly strong for Men wanting a flat-fee, all-inclusive branded GLP-1 program nationwide. 1st Optimal remains a solid alternative, especially if you're looking for Patients wanting GLP-1 therapy within a lab-driven functional-medicine program.
Glossary references
Key terms in this article, linked to their canonical definitions.
- Semaglutide · Drugs and brands
- Tirzepatide · Drugs and brands
- Compounded GLP-1 · Pharmacy and drug forms
- 503A pharmacy · Pharmacy and drug forms
- PCAB accreditation · Pharmacy and drug forms
- Prior authorization (PA) · Insurance and regulatory
- Off-label use · Insurance and regulatory
- FDA Drug Shortage List · Insurance and regulatory
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Or see the full category ranking.
Wegovy®, Ozempic®, and Rybelsus® are trademarks of Novo Nordisk A/S. Mounjaro® and Zepbound® are trademarks of Eli Lilly and Company. All other product names and trademarks referenced on this page belong to their respective owners. WeightLossRankings.org is not affiliated with any pharmaceutical manufacturer. See trademark disclaimer.