Willow vs Ro

Both sell tirzepatide. Willow costs $399 a month and Ro costs $448, a difference of $49 a month or about $588 a year. Over a year that is the whole question.

Willow is straightforward single-price plans. Ro is branded medication with insurance help. They are not aimed at the same person, and the cheaper one is not automatically the right answer — though for a cash payer it usually is.

The yearly view. Over twelve months that gap is $588. On a treatment most people stay on for years rather than months, that compounds: five years at this difference is $2,940. That is the number worth deciding on, not the monthly one.

Side by side

Prices verified 2026-09-18. "True monthly cost" is what you are billed in month two, once any introductory rate has lapsed and any membership has renewed.

Where the money actually goes

They differ on 2 of the 7 things we track, and behave the same on the other 5. The differences are what the price gap is actually buying.

What each one charges for: Willow

• Compounded tirzepatide listed at $399/month.

Where it wins: A single price with no membership arithmetic. Watch for: There is little published detail on how dose changes are handled. Ask before committing.

What each one charges for: Ro

• Ro Body membership is $39 for the first month, then $149/month.
• Membership does not include the cost of GLP-1 medication.
• Ro has exited compounded GLP-1s and works with FDA-approved branded products.
• Effective all-in cost commonly lands between $298 and $598/month depending on the medication and any insurance coverage.
• Cancellation requires notice before the renewal date.

Where it wins: FDA-approved medication only, which removes the compounding-regulation question entirely. Watch for: The membership and the medication are two separate bills. A $39 first month does not mean a $39 prescription.

What each does well

Willow.

• A single price with no membership arithmetic.

Ro.

• FDA-approved medication only, which removes the compounding-regulation question entirely.
• Genuine help pursuing insurance coverage.

How they score

Ro scores higher overall at 3.5 out of 5. The weights are published on how we rate, and so is the note about which of these is our paid featured partner.

Which saves you more

• Pick Willow if cost is the binding constraint. Over a year the gap is about $588, which is real money for the same class of medication.
• Pick Ro if what it does better matters to you — fda-approved medication only, which removes the compounding-regulation question entirely.
• Ask both which pharmacy compounds the medication and whether it is a 503A or 503B facility. Neither publishes it.

The verdict

On the yearly arithmetic, Willow at $399 a month is the more defensible choice on arithmetic alone. Ro earns its premium only if you will actually use what it does differently. Read the full reviews before deciding: Willow and Ro.

How they sit against everyone else