Compounded tirzepatide
Collective vs WeightRx
Quick answer
WeightRx costs $83 a real month and Collective costs $86 — a difference of $3 a month, or $31 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
| Collective | WeightRx | |
|---|---|---|
| True monthly cost | $86 | $83 |
| Advertised as | $69 | $83 |
| Charged | every calendar month | every calendar month |
| Each charge | $69 | $83 |
| Price basis | the same at every dose | a starting-dose price that climbs |
| Mandatory recurring fee | $17 a month | none found |
| States it names | not published | not published |
| FDA warning letter | none on record | none on record |
Where they actually differ
- One price holds and the other climbs. Collective’s price is the same at every dose; WeightRx’s is a starting-dose price that climbs. See what titration does to an advertised figure.
- Only one carries a mandatory recurring fee. Collective: $17 a month. 360 of 382 sellers charge nothing like it.
- What they advertise is not what they bill. Collective advertises $69 and bills $86.
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: Collective and WeightRx. 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.