Provider review
Arc-1 review
Advertises "from $149.99/mo"; its own product data shows a $199.99 floor
Priced per dose rather than per month: semaglutide $199.99 at 0.5 mg up to $549.99 at 2.5 mg, tirzepatide $199.99 to $399.99. The banner advertises "starting at $149.99" — a price that appears nowhere in its own product data.
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On this page
The verdict
Arc-1 discloses more than our last check had credited it for — a real legal entity and a real, independently verifiable founder-physician, genuine updates worth knowing. But its current site-wide banner advertises "starting at $149.99/month" while the actual lowest price anywhere in its own product data is $199.99 — a real, current $50 gap between the teaser and the floor, on top of per-dose pricing that climbs steeply at higher doses (up to $549.99 for semaglutide, $399.99 for tirzepatide).
Arc-1 is not ranked on any of our rankings. This is a standalone read of what the company publishes about itself — the providers we do rank in this category are on our semaglutide provider ranking. Nothing on this page is a performance claim — see the evidence review for what these compounds do and do not do.
Who it is for, and who it is not
A good fit if
- You want per-dose purchasing rather than a subscription commitment
- You want a named, independently verifiable founder-physician rather than an anonymous operation
- You're comparing this alongside its broader longevity menu (rapamycin, NAD+, sermorelin)
Look elsewhere if
- You're budgeting off the "$149.99/mo" banner — the actual lowest price anywhere is $199.99
- You want a compounding pharmacy individually named — only generic "US-Licensed Pharmacies" language appears
- You want the founder's board certification to be obesity-medicine specific — it's OB/GYN
What it actually costs
What they advertise
Site banner: "GLP-1s starting at $149.99/month," on arc-1.co.
What you actually pay, month to month
The actual lowest price in the product data is $199.99 (semaglutide 0.5mg or tirzepatide 2.5mg) — climbing to $549.99 for semaglutide 2.5mg or $399.99 for tirzepatide 7.5mg.
The commitment trap
The site-wide banner advertises "starting at $149.99/month," but the true lowest price anywhere in the product data is $199.99 — a $50 gap between the teaser and the floor.
Checked live on Arc-1's own site at https://arc-1.co in August 2026. Prices change without notice — confirm before you buy. Work out what a vial actually gives you with our peptide dose calculator.
What is included
The cheapest headline number in this category is often the one with the least attached to it. Here is what Arc-1 bundles in, and what it does not.
Clinician consult
Provider review.
Bloodwork / labs
Not published.
Follow-ups and dose changes
No cadence published.
Human support
Not published.
Injection supplies
Not itemized separately from medication pricing.
Shipping
No terms published.
Pharmacy, labs and oversight
The pharmacy
Described only as "US-Licensed Pharmacies"; no specific name disclosed. The commerce backend's vendor field reads "Strive," consistent with a shared white-label platform.
Oversight
No cadence published.
Compounded peptides are not FDA-approved products, and a 503A pharmacy compounds for a named patient while a 503B outsourcing facility manufactures in batches under CGMP. Neither is a quality guarantee on its own — a named facility is simply a fact you can check, and an unnamed “partner pharmacy network” is not. Our guide to verifying a certificate of analysis covers what to ask for.
Where you can get it
Not disclosed anywhere accessible on the site.
The honest cons
The part they would rather you skipped
Arc-1's site-wide banner advertises "GLP-1s starting at $149.99/month,", but the actual lowest price found anywhere in the site's own product data is $199.99 — a real $50 gap between what the banner promises and what you'd actually pay at the cheapest dose.
- Site banner advertises a $149.99/mo floor that doesn't match the real $199.99 lowest price
- Per-dose pricing climbs steeply — up to $549.99/mo for semaglutide at 2.5mg
- Compounding pharmacy never individually named
- Founder's board certification (OB/GYN) isn't obesity-medicine specific
None of this is unique to Arc-1 — the whole category shares it. What we hold against a provider is the part it hides, and the ways vendors hide things are cataloged in our vendor red-flags guide.
How it compares
The providers we rank on our semaglutide provider ranking, in the order that ranking ranks them. Arc-1 is not among them: it is reviewed here, not ranked there, and we would rather show you the comparison than pretend the two are the same thing.
- COCollectiveThe cheapest medication price here, on a membership the headline omits
- CoreAge RxOne price that does not move when your dose does
- BHBodybuilding Health+The deep peptide catalog is gone; the GLP-1 pricing got better
- RxSpan MDOral tablet only, at a real $179 monthly rate
- Enhance MDWrites a flat-price-at-every-dose policy down — and charges near the top for it
- Found HealthInsurance-integrated, unlike every cash-only compounder here — but $99 needs a prepay
- Direct MedsThe plainest price mechanics on either ranking, from a company with an FDA warning letter
- Synergy RxPublishes a starting number, and nothing about what it commits you to
13 more providers rank on our semaglutide provider ranking — see the full ranking. Every provider we review →
Read this before you buy
A provider comparison is half the decision. The other half is whether the compound does anything for you at all — and whether it is allowed where you compete. Growth-hormone secretagogues are banned in tested sport, year-round, and a prescription does not change that.
Facts on this page reflect Arc-1's own public disclosures when we last checked them, in August 2026. Prices and terms change without notice — confirm on Arc-1's site before you buy. Provider names and logos on this page identify the company under review; their use does not imply endorsement, sponsorship or affiliation. This page is informational and not medical advice; compounded peptides are not FDA-approved, and growth-hormone secretagogues are banned in tested sport year-round. See our disclosure and editorial policy.