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Head-to-head · WeighScore

Iron Med RX vs Onyx Weight Loss

Iron Med RX
Graded #454

Lower grade

vs+4
Onyx Weight Loss
Graded #358

Higher grade

The verdict

Onyx Weight Loss takes it — 58.8/100 to 54.8/100.

Onyx Weight Loss grades higher on WeighScore, our editorial score across cost value, dose & formulation, clinical oversight, labs & monitoring, fulfillment and contract terms. Onyx Weight Loss is a nurse-practitioner-led telehealth clinic based in Mooresville, NC, offering GLP-1 and GLP-1/GIP weight-loss medications alongside peptides and HRT across 8 states.

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.

Cost valueIron Med RX +2
45
43
Dose & formulationOnyx Weight Loss +13
51
64
Clinical oversightOnyx Weight Loss +4
71
75
Labs & monitoringOnyx Weight Loss +11
52
63
FulfillmentIron Med RX +5
58
53
Contract termsEven
55
55
Iron Med RX · left barOnyx Weight Loss · right bar

The numbers

MetricIron Med RXOnyx Weight Loss
WeighScore54.8/10058.8/100
GradeCC
Scorecard rank#454#358
SemaglutideNot disclosed$228/mo (starting dose, compounded)
TirzepatideNot disclosed$280/mo (starting dose, compounded)
CoverageCoverage not published8 states
Brand-name accessCompounded onlyCompounded only
Oral / sublingualYesInjection only
Iron Med RX

Graded #454 · C

Strengths

  • Unusually broad GLP-1 lineup — compounded semaglutide and tirzepatide in both oral tablets and injection, plus microdosing and longevity add-ons
  • Online process with licensed-provider oversight, virtual consults, progress tracking and home delivery
  • Oral tablet options for people who would rather not inject

Where it loses points

  • Prices are not shown publicly — you only see costs after creating an account, so you cannot compare value upfront
  • Labels its oral semaglutide 'research-grade' — wording usually tied to research/non-prescription peptides; confirm it is prescribed for human use
  • Does not name its compounding pharmacy or list the states it serves; the listed address is a private mailbox (PMB), not a clinic
  • Compounded GLP-1 only — no brand-name or insurance options; small, lightly documented operation
Onyx Weight Loss

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

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.

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