The True Monthly Cost of GLP-1: Beyond the Sticker Price

The number on a GLP-1 provider's landing page is a marketing figure, not a budget. The price you actually pay over a year is shaped by three things that rarely appear in the big font: teaser rates that step up, dose escalation, and fees. This is WeighLab's signature calculation — the true monthly cost — and once you see it, you cannot un-see it.

Trap 1: the teaser rate that steps up

The most common gap between advertised and actual cost is the intro rate. A provider advertises, say, $99 for your first month, and the price steps up to $199 from month two onward. Do the math: month one at $99 plus eleven months at $199 is about $2,290 for the year — an effective average of roughly $191 per month, nearly double the number that got you in the door. A truly flat price, like the one CoreAge Rx publishes, costs the same in month twelve as in month one, which is why price transparency is a weighted factor in our methodology. When you compare providers, compare the month-twelve price, not the month-one hook.

Trap 2: dose escalation

GLP-1 medications are not started at the full dose. In the pivotal semaglutide trial, the dose was titrated up over about 16 weeks to reach the 2.4 mg target¹, and tirzepatide is similarly escalated over months in its trial program². That matters for your wallet because some providers price by dose: the low sticker is the starting dose, and your cost rises as you titrate toward a therapeutic level. A provider with genuinely flat pricing across doses protects you here; one with dose-tiered pricing means your steady-state cost is higher than the introductory number. Always ask what the price is at the dose you will actually maintain.

Trap 3: the fees around the medication

The medication price is not always the whole bill. Watch for a separate initial consultation fee, ongoing membership or coaching subscriptions that cannot be unbundled, lab charges, and shipping. Some of these add real value; the problem is only when they are not disclosed up front. A bundled coaching subscription you cannot cancel independently is both a cost and a flexibility hit — it shows up in our contract-flexibility scoring for that reason.

The true-cost formula

Put it together into one number:

True annual cost = (month-one price) + (11 × maintenance-dose monthly price) + (one-time fees) + (recurring non-medication fees × 12)

Then divide by 12 for your true monthly cost. Run that on every finalist and the rankings often reorder — the "cheapest" provider on sticker price frequently is not the cheapest once step-ups and dose tiers are in. The cost calculators do this arithmetic for you, and the compare tool lines finalists up on the honest number.

Why this is the only number that matters

A GLP-1 program is a year-long purchase, and a medication you cannot afford to continue stops delivering results the moment you stop paying. Optimizing for the lowest month-one sticker is how people end up over budget by spring and off treatment by summer. Optimizing for the lowest true annual cost — from a verified provider you can actually stay with — is how you protect both your results and your wallet. That is the entire premise of the Cost-Efficiency Index: rank on what you will really pay, not on what you were shown first. Start with our monthly cost guide, then price your own year.