THE GLP-1 COMPARISON DESKRESEARCHED OCTOBER 2026
Tirz vs Sema
TWO MEDICINES. A MORE INFORMED CONVERSATION.

Tirzepatide.
Semaglutide.
Know the difference.

The evidence, the treatment formats and the real cost of care. A clear starting point for your next conversation with a clinician.

Trial findings apply to the studied branded injections—not compounded products, oral Wegovy or Wegovy HD. Individual results vary.

SURMOUNT-5 / 72 WEEKS

The head-to-head result.

Average reduction in starting body weight

Tirzepatide20.2%
Semaglutide13.7%

751 adults with obesity, without type 2 diabetes. Weekly injections: tirzepatide 10/15 mg vs semaglutide 1.7/2.4 mg, maximum tolerated doses. Diet and activity counseling in both groups.

Randomized, open-label; funded by Eli Lilly. Read the study & limitations ↗

Advertising disclosure: CoreAge Rx is our featured commercial partner and appears first. Placement is promotional; it is not a clinical superiority ranking. How we are funded
01The medicationsMechanism, brand and format02The complete costMedicine + care + terms03The safety questionsWhat to discuss with a clinician
THE PROVIDER COMPARISON

Compare the care behind the medication

How we review ↗

Seven care and fulfillment pathways for comparing semaglutide and tirzepatide access. Read the medicine type, plan term and complete cost; CoreAge Rx appears first through disclosed commercial placement.

02
Branded medications + care

Ro

A membership model with FDA-approved medication options and insurance-support services.

  • Wegovy and Zepbound access if prescribed
  • Insurance support for selected products
  • Annual care prepayment offers a lower equivalent

Care fee and medication are separate charges.

$39 first-month care feeMedication extra; ongoing monthly membership $149Visit RoRead full review
03
Membership + branded options

Hers

Weight-loss care with a separate membership and medication bill, including oral and injectable options.

  • Wegovy pill and injectable choices
  • Ongoing care through a membership
  • Published starting medication prices

Paying a membership fee does not guarantee a prescription.

$39 first-month care feeThen $149/month; medication billed separatelyVisit HersRead full review
04
Membership-based care

Mochi Health

Clinical and nutrition support with medication charges separate from the membership.

  • Compounded semaglutide and tirzepatide pages
  • Video consultation described
  • Ongoing care through a membership

The lowest medication quote is not a complete monthly total.

Sema advertised from $60Medication starting quote; membership extra; dose-dependentVisit Mochi HealthRead full review
05
Manufacturer fulfillment

LillyDirect

A route to prescribed Zepbound through manufacturer-supported pharmacy fulfillment.

  • FDA-approved Zepbound formats
  • Dose-specific self-pay prices
  • Use an appropriate clinician’s prescription

Medication fulfillment is different from a bundled care membership.

From $299 / monthStarting-dose vial or KwikPen; terms applyVisit LillyDirectRead full review
06
Programs for both ingredients

OrderlyMeds

Separate starter, transfer and monthly plans for semaglutide and tirzepatide.

  • Starter and transfer offers published
  • Standard renewal rates visible
  • Brand-name options separately listed

An ingredient comparison does not establish equivalence of finished products.

$149 / $299 monthlyStandard compounded semaglutide / tirzepatide ratesVisit OrderlyMedsRead full review
07
Clinical care + behavioral support

WeightWatchers

Med+ supports access to approved medicines with separate membership and drug charges.

  • Clinical assessment and insurance support
  • Behavioral companion program
  • Approved-medication pathways described

Ongoing membership and medication must both be included in the budget.

$25 first membership monthSix- or twelve-month plan required; medication extraVisit WeightWatchersRead full review
INDIVIDUAL PRODUCT REVIEWS

The medication. The format. The provider.

All product reviews
Compounded semaglutide

CoreAge Rx compounded semaglutide review

A publisher-priced compounded semaglutide program from $79 per month. Identify the dispensed preparation and selected plan before comparing it with branded Wegovy.

Evidence, benefits & limitations
Compounded tirzepatide

CoreAge Rx compounded tirzepatide review

The publisher lists CoreAge Rx compounded tirzepatide from $129 per month. The ingredient’s branded trial evidence does not establish the performance of this preparation.

Evidence, benefits & limitations
Branded semaglutide injection

Wegovy injection through Ro review

An approved semaglutide injection accessed through Ro’s care membership. The medication, selected dose and membership are separate parts of the decision.

Evidence, benefits & limitations
Branded tirzepatide

Zepbound through Ro review

Branded tirzepatide paired with Ro’s clinical membership. Confirm the delivery format, medication price and care fee before comparing it with compounded or manufacturer-direct offers.

Evidence, benefits & limitations
Branded oral semaglutide

Wegovy pill through Hers review

Daily oral semaglutide within a required Hers membership. It is an approved tablet product with its own instructions, and it was not the semaglutide formulation tested in SURMOUNT-5.

Evidence, benefits & limitations
Branded tirzepatide KwikPen

Zepbound KwikPen through Hers review

A multi-dose, single-patient-use tirzepatide pen paired with the Hers membership. It differs from both a single-dose Zepbound pen and a compounded vial.

Evidence, benefits & limitations
Compounded semaglutide injection

Mochi compounded semaglutide review

A dose-dependent compounded injection offer with membership billed separately. The initial medication price does not establish the ongoing total or equivalence to Wegovy.

Evidence, benefits & limitations
Compounded tirzepatide injection

Mochi compounded tirzepatide review

Mochi advertises compounded tirzepatide as low as $90, plus membership, with dose-dependent pricing. Read that as a starting offer for a distinct preparation.

Evidence, benefits & limitations
Branded tirzepatide single-dose vial

LillyDirect Zepbound single-dose vial review

A branded tirzepatide vial fulfilled through LillyDirect’s self-pay pathway. The dose-specific price, injection supplies and separate prescribing relationship all matter.

Evidence, benefits & limitations
Branded tirzepatide multi-dose pen

LillyDirect Zepbound KwikPen review

A single-patient-use pen containing four weekly doses of branded tirzepatide. Compare its supplies and dose-specific program terms with the vial and single-dose pen.

Evidence, benefits & limitations
Compounded tirzepatide pathway

OrderlyMeds compounded tirzepatide program review

The starter, transfer and standard charges behind this provider’s tirzepatide offer, with the finished-product distinction kept visible.

Evidence, benefits & limitations
Care membership; medication extra

WeightWatchers Med+ GLP-1 care review

A review of the membership around the medicine: term commitment, clinical access, insurance assistance and behavioral support.

Evidence, benefits & limitations
THE EVIDENCE DESK

Read beyond the headline.

All articles
The evidence desk

SURMOUNT-5: what the head-to-head trial found

Tirzepatide produced a larger average weight reduction than the studied semaglutide regimen. The population, doses and analysis define how far that finding can travel.

Evidence, benefits & limitations
The evidence desk

How tirzepatide and semaglutide differ

The medicines act on related pathways, but the molecule, finished product, indication and delivery format all matter.

Evidence, benefits & limitations
A NOTE ON OUR REVIEWS

Evidence with
its context intact.

We read product pages, published research, and regulatory guidance. We explain the tradeoffs, distinguish marketing from evidence, and link the sources so you can look closer.

Read our methodology