Fridays vs RNK Health: NAD+ Therapy Compared
Fridays starts at $179/mo (billed quarterly) and offers injection, nasal spray & oral liposomal, while RNK Health starts at $129/mo with injection, nasal & oral liposomal. Below we line them up on price, delivery formats, dosing, shipping, and overall value so you can see which prescription NAD+ provider fits you best.
Fridays
NAD+ from $179/mo (billed quarterly). Injection, nasal spray, or oral liposomal.
Visit Fridays →
RNK Health
From $129/mo. Longevity protocols with coaching. Injection, nasal, or oral.
Visit RNK Health →| Feature | Fridays | RNK Health |
|---|---|---|
| Editorial score | 9.43 / 10 | 9.12 / 10 |
| Starting price | $179/mo (billed quarterly) | $129/mo |
| Renewal / ongoing | Nasal & oral $229/mo | $129/mo |
| Delivery formats | Injection, nasal spray & oral liposomal | Injection, nasal & oral liposomal |
| Dose strengths | Oral 50/100/150mg daily; injection 3×/week | Clinician-titrated |
| Shipping | Medication included | Included (~48h) |
| Membership / fees | None | Subscription includes care |
| Guarantee | — | — |
| Best for | People wanting personalized NAD+ with a choice of injection, nasal spray, or oral delivery | Optimizing performance, healthy aging, and longevity |
Where Fridays stands out
- + No required membership fee
- + Higher editorial score (9.43 vs 9.12)
Where RNK Health stands out
- + Lower entry price — $129/mo
Pros & cons, side by side
Fridays
Pros
- + One of the few providers offering injection, nasal spray, AND oral liposomal NAD+
- + Personalized protocol for your goals
- + Established trusted brand
Cons
- − Billed quarterly rather than month-to-month
- − Not available in all states
RNK Health
Pros
- + Best for performance-focused users
- + Science-backed longevity approach
- + Coaching and wellness metrics included
Cons
- − No money-back guarantee once medication ships
The verdict: Fridays vs RNK Health
In our editorial ranking, Fridays places higher (#8 vs #10), making it the default pick for most readers — it's best for people wanting personalized NAD+ with a choice of injection, nasal spray, or oral delivery. That said, RNK Health is the stronger choice for optimizing performance, healthy aging, and longevity. Both are prescription NAD+ services, so the right answer depends on the delivery format and price structure that match how you want to start.
More head-to-head comparisons
Pricing and product details were verified against each provider's official pages and may change — always confirm current terms on the provider's site. Rx required; a licensed provider determines whether NAD+ therapy is appropriate for you. We may earn a commission from links on this page, which never affects our rankings.