What NAD+ Is
NAD+ is the coenzyme every cell uses to make energy; levels fall with age, stress and poor sleep. It is taken as a subcutaneous injection two to three times a week, or an IV ($399 for 250 mg), and most people notice it in days.
What Semax / Selank Is
Semax / Selank is two peptides from Russian research: semax for cognition, selank for anxiety. It is taken as a nasal spray or injection, daily or as needed, and most people notice it in same day.
Side by Side
| NAD+ | Semax / Selank | |
|---|---|---|
| Best for | energy, clarity and recovery | focus and calm |
| How it is taken | subcutaneous injection two to three times a week, or an IV ($399 for 250 mg) | nasal spray or injection, daily or as needed |
| Time to notice | days | same day |
| Price at Zen IV Spa | $229/mo shipped; IV $399 | $299/mo |
| Common side effects | flushing and nausea if given too fast; injection sting | rare irritation; not a stimulant |
| FDA status | not FDA-approved as a treatment; compounded by prescription | not FDA-approved in the US; compounded by prescription |
Pick NAD+ If
Your main concern is flat energy, brain fog, or recovery after a hard stretch. It is the right call when the goal is energy, clarity and recovery and you want the simpler, more targeted option.
Pick Semax / Selank If
Your main concern is clear-headed focus without caffeine jitters. It is the right call when the goal is focus and calm.
Can You Combine Them?
Yes. NAD+ for cellular energy, Semax/Selank for focus on demand. A common pairing for brain fog.
How to Get Either One in New York or New Jersey
Every program at Zen IV Spa is prescribed and overseen by our medical director, a licensed physician, after a video consultation and baseline labs drawn at your home. Refills ship overnight anywhere in New York or New Jersey, and a nurse can come to your door for the first dose.
Single peptides are $229 a month (glutathione $199), stacks $299, semaglutide $199, tirzepatide $299. A 2-month supply is 10% off and 3 months is 15% off. The $50 consultation is one-time.
Common Questions
Which is better, NAD+ or Semax / Selank?+
Neither is better in general. NAD+ for energy, clarity and recovery; Semax / Selank for focus and calm. The provider chooses from your labs and goals.
Which costs more?+
NAD+ is $229/mo shipped; IV $399; Semax / Selank is $299/mo at Zen IV Spa, shipping and follow-ups included.
Are they FDA-approved?+
NAD+: not FDA-approved as a treatment; compounded by prescription. Semax / Selank: not FDA-approved in the US; compounded by prescription. We say so plainly on every page.
Can I switch from one to the other?+
Yes. Programs run month to month with no contract; the provider adjusts at any check-in.
How do I start?+
Book a $50 video consultation at Zen IV Spa; a nurse draws baseline labs at your home.
All treatments are medical services. Every guest is screened, and every treatment is provided only under the clearance, prescription or standing protocol of a licensed medical provider. Compounded peptides are not FDA-approved unless stated. Nothing on this page is a diagnosis or a promise of results.