Arc-1 Review

Arc-1 in one line: buy your GLP-1 by the dose, no subscription strings attached

Arc-1 is a longevity-flavored online pharmacy storefront that sells compounded semaglutide and compounded tirzepatide the way you'd buy any other product online — one dose at a time, added to a cart, checked out. There's no monthly membership to keep active and no recurring plan you have to remember to cancel. For people who are tired of telehealth weight-loss programs that lock them into auto-billing, that à la carte model is the whole appeal. Starting at $199.99 a month for the entry semaglutide dose, it lands a bit above the category median of $170, but the freedom to buy only what you need — when you need it — is the trade you're really paying for.

How the per-dose pricing actually works (and where it stops being cheap)

Instead of one flat 'program' price, Arc-1 prices each strength of each medication separately, so your cost scales with your dose. That's honest in one sense — you're not subsidizing higher doses you don't use — but it also means the headline figure only describes the lowest rung. Semaglutide opens around $199.99 a month at the starter strength and climbs steadily; by the top published semaglutide dose you're looking at a mid-five-hundreds monthly number, which is no longer a budget option. Tirzepatide follows the same shape: low two-hundreds at the entry strength, rising toward the high-three-hundreds at the larger dose. A standing 25% promotion and free expedited shipping take some sting out, and there's no separate consult fee bolted on — the consultation is listed at no charge.

• Semaglutide: entry dose around $199.99/mo, scaling up to the mid-five-hundreds at the highest published strength
• Tirzepatide: starts in the low two-hundreds, rising toward the high-three-hundreds at the larger dose
• No subscription: each dose is a one-off purchase, not an auto-renewing plan
• Promo: a flat 25% off plus free expedited shipping at checkout, with no add-on consult fee

The medications: compounded only, dispensed as a product purchase

Everything weight-loss-related on Arc-1 is compounded, not brand-name. There is no Wegovy, Ozempic, Zepbound, or Mounjaro here, and no brand pricing row anywhere on the site — if you specifically want the FDA-approved branded pen, this is not your provider. What you get instead is compounded semaglutide or tirzepatide, shipped after a virtual consultation, with the medication, the consult, and shipping all bundled into the per-dose price. Practically, you're buying the drug as a product: pick the molecule, pick the strength, check out, and it ships fast and discreetly with free shipping.

What sets Arc-1 apart: it's a longevity shop, not just a weight-loss funnel

Most GLP-1 telehealth sites do one thing. Arc-1's actual differentiator is that GLP-1s sit inside a broader longevity and men's-health formulary — alongside rapamycin, NAD+, sermorelin, enclomiphene, metformin, glutathione, B12, and ED medication. If you think of weight management as one piece of a wider 'optimize everything' routine and you'd rather source several of those interests from a single checkout, that one-stop breadth is genuinely uncommon. For a single-goal patient who just wants to lose weight, though, that same breadth is noise — and it's a hint that this is built more like a supplement-style storefront than a dedicated obesity-medicine clinic.

A 30-day satisfaction guarantee and LegitScript certification

Two trust signals do stand out. Product pages now display a LegitScript Certified badge — meaningful, because LegitScript vetting is a real bar for legitimate online pharmacies — and Arc-1 advertises a 30-day satisfaction guarantee, which is more than many compounding storefronts offer. Those are points in its favor and worth weighing against the gaps below.

Where the transparency falls short

This is where Arc-1 earns a hard look. The site does not disclose a legal entity name or a business address, doesn't publish which states it serves, and doesn't name its clinicians or its compounding pharmacy partners. For a medication you inject, knowing who is actually behind the prescription and which licensed pharmacy compounds it matters — and Arc-1 keeps all of that off the page. One more wrinkle worth flagging honestly: although the site markets itself as per-dose with no subscription, the checkout flow tags items as a deferred or recurring purchase, so read the cart screen carefully before you confirm, and make sure you're being charged once rather than enrolled in something.

• No legal entity name or physical address published
• No list of states where it can prescribe and ship
• No named prescribing clinicians and no disclosed pharmacy partner
• Checkout language hints at recurring billing despite the 'no subscription' pitch — verify your cart

Who should choose Arc-1 — and who should skip it

Arc-1 fits a specific buyer: someone comfortable with compounded GLP-1s, who wants to purchase by the dose without committing to a membership, and who values pairing weight-loss meds with a wider longevity stack from one storefront. The standing promo, free shipping, no-cost consult, and satisfaction guarantee make a low starter dose reasonably priced. Skip it if you want brand-name medication, if you need to confirm your state is covered before you buy, or if not knowing the dispensing pharmacy and clinician behind your injection is a dealbreaker. Anyone on a higher dose should also run the math first — at the top strengths the per-dose model stops looking like a bargain.

Bottom line

Arc-1 is a credible, LegitScript-certified way to buy compounded semaglutide or tirzepatide by the dose without subscription lock-in, wrapped in a broader longevity catalog that some buyers will love and others will find distracting. Its pricing is fair at the entry doses and steep at the top, and its biggest weakness is disclosure — no entity, no address, no named pharmacy or clinicians, and checkout copy that doesn't quite match the 'no subscription' promise. If you go in clear-eyed, read your cart, and start at a low dose, it can work. If you need full transparency about who's prescribing and compounding your medication, look elsewhere. See our scoring methodology for how we weigh these trade-offs.

Shopping around? Breeze Meds ($199/month) and bmiMD ($99/month) are the nearest alternatives to Arc-1 in our rankings.