Lttl vs System Labs: Which longevity Clinic Is Better in 2026?
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Short answer
Lttl wins overall, scoring 7.4/10 vs 7.3/10. Mainly on real monthly cost and what they disclose.
Lttl wins overall, scoring 7.4/10 vs 7.3/10.
Lttl · from $99/mo on a 12-month supply, $1,188 billed up front
LLttl
Prices every plan with the amount billed up front and names its four pharmacies, but the review rating on its pages does not match its Trustpilot record and its refund pages contradict each other.
from $99/mo on a 12-month supply, $1,188 billed up front
Visit →
System Labs
Six longevity treatments, and a pricing page that gives two different answers.
from $149/mo after an $89 first month, billed monthly
Visit →Lttl vs System Labs, side by side
| Feature | Lttl | System Labs |
|---|---|---|
| Our score | 7.4/10 | 7.3/10 |
| Starting price | $99/mo on a 12-month supply, $1,188 billed up front | $149/mo after an $89 first month, billed monthly |
| Medication types | nad-injection, nad-nasal-spray, nad-liposomal, sermorelin-injection, glutathione-injection, methylene-blue, mic-b12 | nad-injection, nad-nasal, sermorelin-injection, sermorelin-odt, glutathione-injection, glutathione-nasal |
| Best for | — | — |
| Overall ranking | #8 | #9 |
| Real monthly cost (25%) | 8.0 | 6.5 |
| Prescriber & follow-up (30%) | 6.5 | 7.0 |
| What they can prescribe (20%) | 8.5 | 8.0 |
| What they disclose (25%) | 7.0 | 8.0 |
Sources: Lttl pricing verified on lttl.com, System Labs pricing verified on systemlabs.com
Pros & cons
Lttl
Pros
- + Every plan priced with the amount charged: NAD+ $149 a month month to month, $417 a quarter, $774 for 6 months or $1,188 for 12 months
- + Names its four partner pharmacies with addresses in its Terms, each with no FDA warning letter on file
- + Three NAD+ forms (injection, nasal spray, liposomal oral liquid) plus sermorelin, glutathione and methylene blue, at one price for every dose
Cons
- − Not available in 1 state
- − Weaker on Prescriber & follow-up (6.5/10)
- − Weaker on What they disclose (7.0/10)
System Labs
Pros
Cons
- − Weaker on Real monthly cost (6.5/10)
- − Weaker on Prescriber & follow-up (7.0/10)
- − Weaker on What they can prescribe (8.0/10)
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), Lttl (7.4/10) comes out ahead of System Labs (7.3/10). But the right choice still depends on what matters most to you.
Choose Lttl if you want this option. From $99/mo on a 12-month supply, $1,188 billed up front.
Visit →Choose System Labs if you want this option. From $149/mo after an $89 first month, billed monthly.
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 Lttl.
Frequently asked questions
Which is better, Lttl or System Labs?
How much does Lttl cost vs System Labs?
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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.