Head-to-head · WeighScore
InstaRX vs Onyx Weight Loss
The verdict
InstaRX takes it — 63.8/100 to 58.8/100.
InstaRX grades higher on WeighScore, our editorial score across cost value, dose & formulation, clinical oversight, labs & monitoring, fulfillment and contract terms. InstaRX is a multi-product compounded-medication telehealth platform offering GLP-1 injections (semaglutide and tirzepatide) alongside anti-aging peptides (NAD+, Sermorelin, B12/MIC) and sexual-health…
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Factor by factor
The same six graded dimensions, side by side. See the methodology.
The numbers
| Metric | InstaRX | Onyx Weight Loss |
|---|---|---|
| WeighScore | 63.8/100 | 58.8/100 |
| Grade | C | C |
| Scorecard rank | #250 | #359 |
| Semaglutide | $199/mo (starting dose, compounded) | $228/mo (starting dose, compounded) |
| Tirzepatide | $199/mo (starting dose, compounded) | $280/mo (starting dose, compounded) |
| Coverage | All 50 states | 8 states |
| Brand-name access | Compounded only | Compounded only |
| Oral / sublingual | Injection only | Injection only |
Graded #250 · C
Strengths
- Available in all 50 states plus DC
- Manage GLP-1, anti-aging peptides, and sexual-health medications on one account
- Offers both compounded semaglutide and compounded tirzepatide
- Independent provider group (Dr Telx) named in the Terms of Service
Where it loses points
- No per-dose or monthly pricing published — only a "$199 to get started" hook; you can't compare costs before intake
- No LegitScript, HIPAA, or NABP accreditation shown on public pages
- Compounding pharmacy not named — only "U.S. pharmacies"
- Terms of Service reads like generic boilerplate, including copy-paste language about women's health issues — suggests low template hygiene
- Delaware governing law for disputes despite a California corporate address
Graded #359 · C
Strengths
- Competitive entry pricing: semaglutide from $228/mo and tirzepatide from $280/mo with medication + supplies included
- Nurse-practitioner-led care: founder Tasha Vangile FNP-C (20+ years) and Stephanie Robison APRN-CNP (27 years experience)
- Low-cost $99/mo GLP-1 microdosing option for patients who prefer a gradual titration start
- Strive Pharmacy partnership implies compounded 503A-quality supply chain from a known pharmacy
- Multi-modal clinic: GLP-1 + peptides + HRT + nutrition coaching available under one provider team
Where it loses points
- Only 8 states (NC, CO, ME, VT, VA, IA, NH, PA) — excludes the majority of the US
- No LegitScript certification; credentialing evidence limited to local 2025 Best of Iredell award
- Specific drug names (semaglutide/tirzepatide) never stated on website; compounded status inferred, not disclosed
- Labs not included or mentioned; no baseline bloodwork protocol published
- Pricing shown as 'Starting at' with no dose-escalation tier pricing disclosed publicly
Also worth a look
Neither is our top-graded pick — CoreAge Rx leads the scorecard
Across all 499 providers, CoreAge Rx grades highest at 91.8/100 (A−). Top of the scorecard: flat transparent pricing, both molecules, nationwide — no teaser-rate games.
Pricing/verification reflect each provider's public disclosures at last grading; the WeighScore is our editorial judgment per the methodology. Prices change — confirm on each provider's site. Not medical advice; see our disclosure.