1st Optimal vs Harbor
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 program
Visit 1st Optimal →
Harbor
Best for: adults seeking the lowest-cost compounded GLP-1 with physician oversight and a 12-month money-back guarantee
Visit Harbor →1st Optimal and Harbor are both GLP-1 Providers competing for the same patients, but they make different trade-offs on price, coverage, and what's included. In our scoring, Harbor starts at $99/mo, and Harbor edges ahead overall (8.1 vs 6.7 out of 10). Below we break down pricing, what each plan covers, the six-dimension score, pros and cons, and exactly who should pick which.
Pricing
1st Optimal
Pricing not publicly listed.
Harbor
Weekly compounded semaglutide injection. Verbatim: 'From $99/mo'. Bundled plan covers medication, provider consultations, refill management, and shipping.
Weekly compounded tirzepatide injection. Verbatim: 'From $149/mo'. Bundled plan covers medication, provider consultations, refill management, and shipping.
What’s included
1st Optimal
Inclusions not disclosed.
Harbor
What the monthly price covers
Medication
Included
Provider visits
Included
Shipping
Included
Lab work
Not disclosed
Coaching
Not disclosed
Score breakdown
Both providers are scored on the same six-dimension framework. The gradient bar marks the stronger side on each dimension.
1st Optimal
6.7/10
Harbor
8.1/10
Value25%
Effectiveness25%
User Experience15%
Trust & Safety15%
Accessibility10%
Support10%
Features & Coverage
| Feature | 1st Optimal | Harbor |
|---|---|---|
| Starting Price | — | $99/mo |
| Features | 8 features | 8 features |
| States Available | Not disclosed | Not disclosed |
| Compounded | — | ✓ Yes |
| Brand Name | — | — |
| FSA/HSA Accepted | — | ✓ Yes |
| FDA Warnings | None | None |
About 1st Optimal
1st Optimal is a Michigan-based telehealth and functional-medicine platform offering GLP-1 weight loss medications, including semaglutide and tirzepatide, as once-weekly injections or daily oral tablets. Its model pairs prescription GLP-1 therapy with at-home lab testing, blood-work interpretation, unlimited coaching, and personalized protocols framed around long-term weight loss and longevity. Care is delivered virtually by credentialed providers, and treatments ship to the home with no long-term contracts. The site does not publish monthly pricing or a state list.
Read our full 1st Optimal review →About Harbor
Harbor is a physician-led telehealth platform offering compounded semaglutide (from $99/mo) and compounded tirzepatide (from $149/mo) — among the lowest headline prices in the market. Plans include weekly medication, ongoing provider consultations, refill management, and free 48-hour discreet shipping. Physicians provide 24/7 access and dosage adjustments via secure patient portal. Post-program dietitian support included. LegitScript certified; 4.7-star rating with 10,000+ verified members; 12-month money-back guarantee. HSA/FSA eligible.
Read our full Harbor review →Pros & Cons
1st Optimal
What we like
- 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
Watch-outs
- 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
Harbor
What we like
- Compounded semaglutide from $99/mo and tirzepatide from $149/mo — among the lowest headline prices in the market
- LegitScript certified with 4.7-star rating, 94.6% success rate, and 10,000+ verified members
- 24/7 physician access with ongoing consultations, dosage adjustments, and free discreet shipping
- 12-Month Money Back Guarantee if you don't reach your weight-loss goal
- HSA/FSA eligible; no hidden fees, no insurance billed
Watch-outs
- Compounded medications are not FDA-approved; compounding pharmacy names not publicly disclosed
- Dietitian support offered only post-program (maintenance phase), not during active treatment
- State-specific consultation types vary; nationwide availability unconfirmed for all states
- No labs disclosed; patient portal is a third-party platform (mdintegrations), not native
- Newer brand; success rate and member counts are on-site claims, not third-party verified
Our Verdict
Harbor edges out 1st Optimal with a higher overall score of 8.1/10 and is particularly strong for adults seeking the lowest-cost compounded GLP-1 with physician oversight and a 12-month money-back guarantee. 1st Optimal remains a solid alternative, especially if you're looking for Patients wanting GLP-1 therapy within a lab-driven functional-medicine program.
Choose 1st Optimal if…
You want Patients wanting GLP-1 therapy within a lab-driven functional-medicine program.
Choose Harbor if…
You want adults seeking the lowest-cost compounded GLP-1 with physician oversight and a 12-month money-back guarantee and a starting price around $99/mo.
Ready to start? Vetted GLP-1 providers
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Embody
Lowest first-month entry pricing on compounded GLP-1s
From $99/mo
Get started →TrimRx
Best overall value
From $179/mo
Get started →Telos Rx
Needle-free and microdosed compounded GLP-1 options with lab-monitored care
From $49/mo
Get started →1st Optimal vs Harbor: FAQ
Key terms, explained
New to GLP-1s? Tap any term for a quick, plain-English definition.
- 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.
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