Compounded tirzepatide
Mochi Health vs Willow
Checked in . Both sellers are re-checked on the same schedule; a price either side changes after that date will not be reflected here until the next check.
Quick answer
Mochi Health costs $178 a real month and Willow costs $399 — a difference of $221 a month, or $2,652 a year. Both figures are computed from what each seller actually charges and how often, not from the price on its landing page.
What each one bills
| Mochi Health | Willow | |
|---|---|---|
| True monthly cost | $178 | $399 |
| Advertised as | $90 | $399 |
| Charged | every 4 weeks | every calendar month |
| Each charge | $90 | $399 |
| Price basis | a starting-dose price that climbs | not stated |
| Mandatory recurring fee | $80 a month | none found |
| States it names | 15 states | 36 states |
| FDA warning letter | none on record | none on record |
Where they actually differ
- They bill on different clocks. Mochi Health charges every 4 weeks and Willow charges every calendar month. That alone changes what a “month” costs, which is the whole reason this index recomputes every price.
- One price holds and the other climbs. Mochi Health’s price is a starting-dose price that climbs; Willow’s is not stated. See what titration does to an advertised figure.
- Only one carries a mandatory recurring fee. Mochi Health: $80 a month. 360 of 382 sellers charge nothing like it.
- What they advertise is not what they bill. Mochi Health advertises $90 and bills $178.
How we know
Both figures were read on the seller’s own site and recomputed over a 30.4375-day calendar month from the charge and the billing period it covers. Neither is a seller’s own “/mo”. The full working for each — the charge, the period, the arithmetic and the date it was read — is on its own page: Mochi Health and Willow. The method is set out in how we verify.
To compare any two sellers in the index rather than these two, use the comparison tool.