Peter MD vs Maximus: Which longevity Clinic Is Better in 2026?
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Short answer
Peter MD wins overall, scoring 6.4/10 vs 6.1/10. Mainly on what they can prescribe and prescriber & follow-up.
NAD+ as injection or capsule, plus sermorelin and metformin, priced by supply rather than by month.
from $369 for an 8 to 10 week supply (2 vials)
Read Review
Prices its growth hormone peptides by plan length and includes the supplies, but holds an open FDA warning letter over marketing claims for another product line and sets the final dose price at checkout.
from $199.99/mo on a 6-month plan
Visit →Peter MD vs Maximus, side by side
| Feature | Peter MD | Maximus |
|---|---|---|
| Our score | 6.4/10 | 6.1/10 |
| Starting price | $369 for an 8 to 10 week supply (2 vials) | $199.99/mo on a 6-month plan |
| Medication types | nad-injection, nad-capsule, sermorelin-injection, metformin, bloodwork | sermorelin-injection, peptides |
| Best for | NAD+ in two forms, plus metformin | — |
| Overall ranking | #23 | #27 |
| Real monthly cost (25%) | 6.5 | 6.5 |
| Prescriber & follow-up (30%) | 6.5 | 7.5 |
| What they can prescribe (20%) | 8.0 | 6.0 |
| What they disclose (25%) | 5.0 | 4.0 |
Sources: Peter MD pricing verified on getpetermd.com, Maximus pricing verified on maximustribe.com
Pros & cons
Peter MD
Pros
- + NAD+ as both injection and capsule, plus sermorelin and metformin
- + Publishes the states it cannot ship to, on the product page itself
- + Comprehensive bloodwork sold openly alongside treatment
Cons
- − Not available in 2 states
- − Weaker on What they disclose (5.0/10)
- − Weaker on Real monthly cost (6.5/10)
Maximus
Pros
- + Published prices by plan length: $299.99, $274.99 or $199.99 a month for 1, 2 or 6 months
- + States the dose and supply: 1 mg five days a week, a 20 mg vial lasting 28 days, needles and syringes included
- + Says where it does not prescribe sermorelin (Alabama) and offers optional IGF-1 testing before and after
Cons
- − Not available in 1 state
- − Weaker on What they disclose (4.0/10)
- − Weaker on What they can prescribe (6.0/10)
The bottom line
After scoring all 31 clinics on our 4-criterion rubric (real monthly cost, prescriber & follow-up, what they can prescribe and what they disclose), Peter MD (6.4/10) comes out ahead of Maximus (6.1/10). But the right choice still depends on what matters most to you.
Choose Peter MD if you want nad+ in two forms, plus metformin. From $369 for an 8 to 10 week supply (2 vials).
Read Review →Choose Maximus if you want this option. From $199.99/mo on a 6-month plan.
Visit →Editor's overall pick
Not sold on either? Our highest-rated clinic overall is HealthRX (8.5/10) from $161/mo on a 1-month plan, renewing monthly. Read the review →
Ready to start longevity care?
Our verdict for this matchup is Peter MD.
Frequently asked questions
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How we score: every clinic is rated on five weighted criteria from documented evidence. Prices checked weekly. See each review for that clinic's own verification status. Scores are never influenced by affiliate commissions. “Visit” links may be affiliate links that support our work. Educational information only. Not medical advice.