Arc-1 review
Same price, both molecules
Compounded semaglutide and compounded tirzepatide are both priced at $199.99, and both figures climb once the prescribed dose does.
Our verdict
Two molecules at one identical figure is the first thing to notice about Arc-1, because tirzepatide almost always costs more than semaglutide. The second is that $199.99 is a starting point rather than a rate: the price scales with the dose prescribed, so the figure describes month one and no month after it. Neither price carries a milligram dose, a state list or a named pharmacy. Arc-1 also publishes no storefront at either address its name points to, which leaves a buyer nothing to check the figure against.
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At a glance
- Category
- GLP-1 pricing
- Molecule
- Semaglutide · Tirzepatide
- Form
- Injection
- Dose pricing
- Rises with dose
- From
- $199.99/mo
- Prescription
- Required
- Compounded
- Yes — not FDA-approved
- Updated
- September 2026
What it is
A seller of compounded semaglutide and compounded tirzepatide, both as weekly injections, with a single published figure covering each.
How it works
Not established. No consultation model, state list or dispensing arrangement accompanies either price, and neither address matching the Arc-1 name resolves to a storefront — arc-1.com is parked and listed for sale, and arc1.com belongs to an unrelated software company.
Pricing transparency
$199.99 for compounded semaglutide and $199.99 for compounded tirzepatide, injections in both cases. The price is recorded as scaling with dose, which makes each figure a floor rather than a standing monthly rate. Nothing states where the steps fall or what the next one costs, so the cost of a titrated year cannot be worked out from what is published.
Branded vs compounded
Compounded semaglutide and compounded tirzepatide for weekly injection. Compounded drugs are not FDA-approved and are not reviewed by the FDA for safety, efficacy or quality before dispensing. No compounding pharmacy is named, and no milligram strength is attached to either price.
Pros and watch-outs
What we like
- Both molecules priced rather than one headline figure
- Tirzepatide carries no premium over semaglutide
- A published figure rather than a quote-on-request model
- Weekly injection on both molecules, with no oral upsell
Watch-outs
- The price rises with dose and the steps are unpublished
- No milligram strength attached to either figure
- No state list and no named compounding pharmacy
- No storefront resolves at either matching address
Best for
Buyers who want both molecules quoted at one number.
Who should look elsewhere
Anyone who needs to see the seller's own pricing page before paying.
How Arc-1 compares
A few alternatives worth a look, depending on what you’re optimizing for.
- SkinnyRx
A tirzepatide price you can check
See SkinnyRx → - Bodybuilding Health+
A headline that is the monthly rate
See Bodybuilding Health+ → - Synergy Rx
Compounded and branded together
See Synergy Rx →
More GLP-1 sellers by price reviews: California Trim ClinicCandor RxCare ClinicsCarocare WellnessCeliaRxCenter for Medical Weight Loss (CMWL)
Pricing & provider data · Reviewed and last verified September 2026
How we assessed this. This review reflects GLP Loss’s own read of Arc-1’s publicly-stated model — pricing transparency, clinical oversight, medication clarity, and access — against our editorial methodology. We publish no fabricated ratings or first-hand outcomes. A partnership never changes the assessment — see how we make money.
Frequently asked
- How much does Arc-1 charge?
- $199.99 for compounded semaglutide and the same for compounded tirzepatide, both as weekly injections. That figure is recorded as a starting price that scales with the prescribed dose. What a higher dose costs is not published anywhere.
- Why are semaglutide and tirzepatide the same price?
- Arc-1 gives no reason. Tirzepatide is usually the more expensive of the two at a given seller, sometimes by a hundred dollars or more, so a flat figure across both is unusual. Without a dose attached to either price, the match is difficult to interpret.
- Does the price change as the dose increases?
- Yes. The pricing is recorded as scaling with dose, which means $199.99 describes the entry point and not the ongoing cost. Titration is the normal path on both molecules, so most buyers would move past the advertised figure within a few months.
- Which states does Arc-1 serve?
- No state list is published. Neither is a compounding pharmacy, a milligram strength, or a consultation model. A buyer has the two prices and nothing beside them.
- Is Arc-1 expensive compared with other GLP-1 sellers by price providers?
- Arc-1 publishes a starting figure of $199.99/mo. Across the 332 GLP-1 sellers by price providers we review that publish a single monthly figure, those run $76 to $449 with a median of $179, which puts Arc-1 above the median. The other 23 GLP-1 sellers by price providers we review quote only after an intake or price by dose, so they are not in that comparison. A starting figure is not a bill — labs, consultations and shipping are often charged separately, so confirm what your own quote includes.