GLP Watchdog

CoreAge Rx vs PlexusDx

Neither CoreAge Rx nor PlexusDx has an FDA warning letter on record. On compounded semaglutide injection, CoreAge Rx costs $840 less a year at standing rates: $79 a month against $149 a month at PlexusDx. It is one of two products the two sell at comparable terms.

To see where both sit among the other sellers, read our best weight-loss injection providers board.

By Ruth Calder · Enforcement Editor
Editorially reviewed. Not medical advice · How we verify contentLast reviewed

The record

CoreAge Rx / PlexusDx

CoreAge Rx logo

CoreAge Rx

9.0/10

PlexusDx logo

PlexusDx

8.0/10

FDA warning letters
None on record
None on record
Pharmacy
None named in our record
Lowest standing price
$79/moCompounded semaglutide injection
$149/moCompounded semaglutide injection
States
48 states
No state list published
Checked
Prices captured Record checked November 2026
Prices captured Record checked October 2026
Visit CoreAge Rx
Visit PlexusDx

Both CoreAge Rx and PlexusDx are affiliate partners: we are paid if you sign up through our links. Neither is featured. Scores are computed the same way for both (CoreAge Rx 9.0, PlexusDx 8.0). How we are paid

What the record shows

  1. 01

    Neither CoreAge Rx nor PlexusDx has an FDA warning letter on record.

  2. 02

    PlexusDx names Vials RX, a 503A pharmacy. CoreAge Rx names no compounding pharmacy in our record.

  3. 03

    On compounded semaglutide injection, CoreAge Rx costs $840 less a year at standing rates: $79 a month against $149 a month at PlexusDx. It is one of two products the two sell at comparable terms.

  4. 04

    Only PlexusDx lists a price for compounded oral semaglutide and compounded oral tirzepatide.

  5. 05

    CoreAge Rx lists 48 states. PlexusDx publishes no state list.

Prices and terms, product by product

A price is set against the other side only for the same product, and only when both are standing monthly or 4-week rates. Those pairs are compared by yearly cost.

CoreAge Rx

PlexusDx

Compounded semaglutide injection

$79/moLower

$948 a year

$149/mo

$1,788 a year

Compounded tirzepatide injection

$129/moLower

$1,548 a year

$189/mo

$2,268 a year

Compounded oral semaglutide
Not sold or not priced

$149/mo

$1,788 a year

Compounded oral tirzepatide
Not sold or not priced

$189/mo

$2,268 a year

Price includes
Medication, clinician visits, shipping
Medication, clinician visits, shipping
Cancel any time
Yes, stated
Yes, stated
Minimum term
None
Monthly by default; longer terms are prepaid and auto-renew for the same length
Refunds
Refund before provider approval, less a $50-$100 consult fee; final once sent to the pharmacy; none after 30 days
Full refund if the prescription has not yet gone to the pharmacy; no refund once it has, and no prorated refund of a prepaid term
Early-exit fee
None stated
None stated

Read off each seller’s own pages. CoreAge Rx: November 5, 2026. PlexusDx: October 17, 2026. Every plan and dose we hold is on the full review.

The case for each

The case for CoreAge Rx

9.0/10
  • $840 a year less on compounded semaglutide injection
  • $720 a year less on compounded tirzepatide injection
  • Names no compounding pharmacy
Visit CoreAge Rx

The case for PlexusDx

8.0/10
  • Sells compounded oral semaglutide and compounded oral tirzepatide, which CoreAge Rx does not price
  • Names its compounding pharmacy
  • Publishes no state list
Visit PlexusDx

Scores

CoreAge Rx 9.0 · PlexusDx 8.0 out of 10. Six weighted parts.

Value25%

10.0A
vs
B
7.5

Effectiveness25%

10.0A
vs
B
10.0

User Experience15%

8.0A
vs
B
8.0

Trust & Safety15%

7.5A
vs
B
8.0

Accessibility10%

9.7A
vs
B
5.0

Support10%

7.0A
vs
B
7.0

The score is the same formula for every seller. Payment does not enter it. Method

CoreAge Rx vs PlexusDx: questions

Neither CoreAge Rx nor PlexusDx has an FDA warning letter on record. Letters are matched to a seller by company, domain and address, never by a similar name.
PlexusDx names Vials RX, a 503A pharmacy. CoreAge Rx names no compounding pharmacy in our record. A 503A pharmacy compounds for named patients on a prescription; a 503B outsourcing facility is registered with FDA and inspected under federal manufacturing rules.
CoreAge Rx, by $840 a year at standing rates. CoreAge Rx: $79 a month, about $948 a year. PlexusDx: $149 a month, about $1,788 a year.
CoreAge Rx states you can cancel at any time; refunds: refund before provider approval, less a $50-$100 consult fee; final once sent to the pharmacy; none after 30 days. PlexusDx states you can cancel at any time; refunds: full refund if the prescription has not yet gone to the pharmacy; no refund once it has, and no prorated refund of a prepaid term.
Both CoreAge Rx and PlexusDx are affiliate partners: we are paid if you sign up through our links. Neither is featured. Scores are computed the same way for both (CoreAge Rx 9.0, PlexusDx 8.0).

Other sellers we are paid by

Affiliate partners outside this pair. Each has its own record and review, scored the same way.

Sellers closest to these two

Matched on molecule, form and price. Every pair we list · The register