CoreAge Rx vs Idun Rx
Idun Rx is cheaper to start ($57 vs $99 a month, lowest published plans). Idun Rx scores higher overall (8.7 vs 7.6).
By Julian Caraulani · prices checked
Quick verdict
Our pick between the two: Idun Rx
Idun Rx scores 8.7/10 against 7.6 for CoreAge Rx, ahead on price transparency, clinical care and access. CoreAge Rx can still be the better fit: it is best for people who want a low sermorelin starting price with no membership on top.
Side by side
| CoreAge Rx | Idun Rx | |
|---|---|---|
| Lowest price | $99/mo (Starting price; the page does not name a plan length) | $57/mo (12-month plan, listed per month (upfront billing not stated)) |
| Our score | 7.6/10 | 8.7/10 |
| Treatments | Sermorelin | Sermorelin, NAD+, Glutathione |
| Medication in price | Included | Included |
| Drugs dispensed | Compounded | Compounded |
| Labs | Not stated | Optional at-home lab panels, sold separately |
| Membership | None | None |
| Insurance | No | No |
| States | US only; its FAQ says state limits are shown at intake | Not confirmed: no state list found on its own site (2026-10-29) |
| Cancellation | Cancel before the renewal is processed; no refund once medication is approved or dispensed | Cancel a subscription in your account before the next order ships |
| Trustpilot | No profile we could quote | No profile we could quote |
| Best for | People who want a low sermorelin starting price with no membership on top. | People who want sermorelin, NAD+ or glutathione from one program and will commit to a longer plan. |
Price by treatment
The lowest all-in plan each publishes for the treatments both offer, with the page we read it on.
| Treatment | CoreAge Rx | Idun Rx |
|---|---|---|
| Sermorelin | $99/mo (Starting price; the page does not name a plan length) source, 2026-11-07 | $94/mo (12-month plan, listed per month (upfront billing not stated)) source, 2026-11-07 |
CoreAge Rx: a closer look
Sermorelin starting at $99 a month with no membership fee, evaluated by US board-certified physicians.
In its favour
- Sermorelin starting at $99 a month
- No membership fees
- Upfront pricing with no hidden fees, per its page
To weigh
- Only a starting price is published; each plan length is priced at checkout
- Pharmacy and state list are not published
Idun Rx: a closer look
Sermorelin, NAD+ and glutathione plans with medication and provider review in the price, from $57 a month on 12 months.
In its favour
- Medication and provider review inside one published price
- Sermorelin, NAD+ (injection or nasal) and glutathione from one program
- No membership fee
To weigh
- The lowest prices need a 12-month plan, and the site does not say if it is billed upfront
- Pharmacy and states served are not named
- No Trustpilot rating we could read
Which should you choose?
Choose CoreAge Rx
Best for people who want a low sermorelin starting price with no membership on top. Its lowest all-in plan is $99/mo (Starting price; the page does not name a plan length).
Check CoreAge Rx's priceChoose Idun Rx
Best for people who want sermorelin, NAD+ or glutathione from one program and will commit to a longer plan. Its lowest all-in plan is $57/mo (12-month plan, listed per month (upfront billing not stated)).
Check Idun Rx's priceCoreAge Rx vs Idun Rx: questions people ask
Is CoreAge Rx or Idun Rx cheaper?
Idun Rx starts lower at $57 a month versus $99 at CoreAge Rx, comparing each program's lowest all-in plan.
Which is better, CoreAge Rx or Idun Rx?
On our published score CoreAge Rx rates 7.6 and Idun Rx rates 8.7. CoreAge Rx is best for people who want a low sermorelin starting price with no membership on top; Idun Rx is best for people who want sermorelin, NAD+ or glutathione from one program and will commit to a longer plan.
Do CoreAge Rx and Idun Rx offer the same treatments?
CoreAge Rx: Sermorelin. Idun Rx: Sermorelin, NAD+, Glutathione.
Does either include the medication in the price?
CoreAge Rx: included. Idun Rx: included.
Rx Peptides Watchdog is for information only and is not medical advice. Compounded peptides are not FDA-approved; talk to a licensed clinician about whether one is right for you. Compare other programs.