NAD+ Injections: What They Do and How People Run Them
NAD+ is not FDA-approved as an injectable drug for general use. This article summarizes community protocols and published research. It is educational, not medical advice.
What NAD+ actually does
NAD+ is the battery charger inside every cell. (Full name's nicotinamide adenine dinucleotide, but nobody says that twice.) Your mitochondria use it to turn food into usable energy and to run repair and cleanup.
Here's the part that makes people care: NAD+ levels fall as you age. That drop is tied to a lot of the "why am I so tired lately" feeling that creeps in. The whole idea behind injecting it is simple. Refill the thing your cells run on, and the energy machinery runs cleaner.
Does injecting NAD+ actually work?
Straight answer: the human research on the injectable version is still catching up. Most of the solid data comes from IV drips and oral precursors like NR and NMN, and a trial on injectable NAD+ is running right now.
So we're in "strong theory, real anecdotes, trials pending" territory. That's not a reason to write it off. It's a reason to run it smart and judge it on your own response, not a testimonial. Some people feel real energy and focus within days. Some feel nothing. The only way to know which one you are is to track it.
SubQ vs IV, and which people pick
IV hits hardest and fastest, which is exactly why it can make you feel flushed, queasy, or tight in the chest if it goes in fast. That's why clinic drips run slow.
SubQ is what most people do at home. Easy self-injection, and because it absorbs slower, it usually comes with way less of that flushing rush. IM exists but it's the least common.
| Route | How it feels | Absorption | Flushing risk | Where people do it |
|---|---|---|---|---|
| SubQ | Mild, manageable flush | Slow and steady | Lower | At home |
| IV | Strong rush, can feel intense | Fast | Higher | Clinic |
| IM | In between | Moderate | Moderate | Rarely |
How people dose it
No official dose exists, so these are the protocols clinics and the community actually use, not medical advice. A common start is 50 to 100mg subQ to see how you handle it. Maintenance usually lands around 50 to 100mg once or twice a week. Some do a short loading stretch (100 to 200mg daily for a week or so), then drop down. Push past ~200mg and side effects get more likely.
What the side effects feel like
The usual ones are flushing (a warm, prickly rush), some nausea, and a mild headache, mostly at higher doses, and they usually pass within an hour or two.
The flushing catches people off guard, so here's the move: go low and slow. Smaller dose, pushed slowly, and it's totally manageable. Your body settles into it.
One interaction worth flagging: NAD+ is sometimes stacked with methylene blue in longevity protocols, and methylene blue has real serotonin-syndrome risk if you're on SSRIs, SNRIs, MAOIs, tramadol, or certain triptans. If that's your stack, talk to your prescriber.
The thing that actually matters: your source
Nobody selling you a drip stresses this. Injectable NAD+ has to be sterile, which means pharmaceutical-grade from a legit source (a 503B or validated 503A pharmacy), not a random vial off the internet. We don't sell this and don't care which brand you run. We just don't want you injecting something sketchy.
NAD+ is also light- and temperature-sensitive. Keep the reconstituted vial refrigerated and out of the light. For dose math, use the peptide reconstitution calculator.
Running NAD+ at home? Track dose, schedule, and how you actually feel.
- Dose log with site rotation and flush notes
- Energy, sleep, RHR, and recovery overlays
- Pulsed and on-demand scheduling support
Frequently Asked Questions
Do NAD+ injections actually work?
Some people feel a clear lift in energy, focus, and recovery within hours to days. Others feel little. The human injectable data is thinner than the IV or oral-precursor data, so the honest answer is: it works for some people, and your own log is the best evidence.
How much NAD+ should I inject?
A common starting point is 50 to 100mg subQ once or twice a week. Maintenance is usually 50 to 100mg once or twice weekly. Some people load at 100 to 200mg daily for a week, then drop down. There is no official dose, so start low and titrate by response.
Why does NAD+ make you flush?
The exact mechanism isn't fully understood, but it involves rapid cellular uptake and transient vascular effects. The flush peaks quickly and usually fades within minutes. Slow injection over 60 to 120 seconds is the single most effective way to reduce it.
SubQ or IV NAD+?
SubQ is the practical home option: cheaper, slower absorption, less intense flush. IV delivers the dose faster and produces a stronger subjective rush, but requires a clinic visit and costs more. Most people who run NAD+ long-term use subQ.
Is injecting NAD+ safe?
For healthy adults at typical community doses, the main issues are the flush and injection-site irritation. The bigger safety variable is the source: injectable NAD+ must be sterile and pharmaceutical-grade. If you are on serotonergic medication or considering methylene blue, talk to a prescriber first. Pregnancy and breastfeeding: no safety data, default to no.
What to track
The only way to know if NAD+ is doing anything for you is to log before, during, and after. The useful markers:
- Energy, morning and afternoon, on a 1 to 10 scale
- Sleep depth and recovery after hard sessions
- Resting heart rate trend
- Dose, injection site, and flush severity
- Training output and DOMS
The Regimen NAD+ tracker logs all of this in one place so you can see your own pattern instead of guessing. Free for one compound.
This article summarizes community protocols and published research on IV and oral NAD+ precursors. Injectable NAD+ is not FDA-approved for general use. Talk to a licensed provider before starting, changing, or stopping any medication.
Ready to track your protocol?
- Smart reminders so you never miss a dose
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- Medication level curves for every compound