Head-to-head · WeighScore
Onyx Weight Loss vs PeptidesRx
The verdict
PeptidesRx takes it — 64.1/100 to 58.8/100.
PeptidesRx grades higher on WeighScore, our editorial score across cost value, dose & formulation, clinical oversight, labs & monitoring, fulfillment and contract terms. PeptidesRx is a Fort Worth, TX-based licensed telehealth platform offering physician-supervised compounded semaglutide, tirzepatide, and a broader prescription peptide menu.
We may earn a commission if you start care through some of these links, at no extra cost to you. It never moves the WeighScore, which is the weighted average of the six factors shown for every provider, and what we write about a provider is the same either way. See our disclosure.
Factor by factor
The same six graded dimensions, side by side. See the methodology.
The numbers
| Metric | Onyx Weight Loss | PeptidesRx |
|---|---|---|
| WeighScore | 58.8/100 | 64.1/100 |
| Grade | C | C |
| Scorecard rank | #358 | #247 |
| Semaglutide | $228/mo (starting dose, compounded) | $169/mo (0.25 mg dose, compounded) |
| Tirzepatide | $280/mo (starting dose, compounded) | $309/mo (2.5 mg dose, compounded) |
| Coverage | 8 states | Coverage not published |
| Brand-name access | Compounded only | Compounded only |
| Oral / sublingual | Injection only | Injection only |
Graded #358 · 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
Graded #247 · C
Strengths
- Compliance-focused positioning vs gray-market vendors
- Board-certified medical director
- Transparent pricing with no surprise fees
- Real prescriptions, not research-chemical channel
Where it loses points
- Smaller scale than Henry Meds or Hims
- Wide peptide menu may distract from GLP-1 focus
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.