NAD+ Injections vs NAD+ IV: Dose, Time and Comfort Compared

As interest in NAD+ grows, so do the ways it is offered. Some clinics provide quick NAD+ injections, others longer IV infusions. Both deliver NAD+ without relying on digestion, but the experience and the amount you receive are quite different.

Short answer: NAD+ injections, given under the skin or into a muscle, deliver small doses in a few minutes and can sting. An NAD+ IV infusion delivers larger doses, such as 250 mg or 500 mg, slowly over a longer appointment with nurse monitoring. Neither has strong research proving health benefits; the choice depends on dose, comfort, time and your practitioner’s advice.

How each works

NAD+ injections

A small volume of NAD+ is injected subcutaneously (into the fatty layer under the skin) or intramuscularly. Doses are much smaller than IV doses. Some programs involve frequent injections, sometimes self-administered at home after training.

NAD+ IV infusion

NAD+ is diluted in saline and infused into a vein. Because NAD+ given quickly causes chest tightness, nausea, cramping and flushing, the rate is kept slow and adjusted by a nurse. That is why NAD+ appointments are longer than standard drips.

Side by side

• Dose: injections deliver small amounts; IV delivers larger amounts in one session.
• Time: injections take minutes; IV infusions take considerably longer, and 500 mg takes longer than 250 mg.
• Comfort: injections can sting or burn at the site; IV infusions can cause rate-related symptoms that settle when slowed.
• Monitoring: IV infusions are monitored throughout by a registered nurse; injections are brief.
• Frequency: injections are often used more frequently; IV sessions are spaced further apart.
• Evidence: limited for both. Most human NAD+ research involves oral precursors rather than injections or infusions.

Common side effects

Injections: stinging, redness, swelling or bruising at the site; occasional flushing or nausea.

IV: chest tightness or pressure, nausea, abdominal cramping, flushing, headache and light-headedness, mostly linked to rate. Bruising at the IV site. Read our NAD+ IV therapy guide for more.

Who should be cautious

• Pregnant or breastfeeding people
• People with heart, kidney or liver disease
• Anyone undergoing cancer treatment
• People with complex medication lists

These situations need individual review, and NAD+ may not be appropriate.

Questions to ask before choosing

1. What dose am I receiving, and why that dose?
2. Who prepares the NAD+, and is it sterile and properly labelled?
3. Who reviews my health history first?
4. Who monitors me during treatment?
5. What happens if I feel unwell?
6. What results can I realistically expect, and how will we judge whether it is worth continuing?

NAD+ at AuraWell

AuraWell offers NAD+ as an IV infusion at 250 mg or 500 mg in our Woodbridge infusion lounge. Each visit starts with a health screen reviewed by a qualified practitioner, and a registered nurse places the IV and adjusts the rate for comfort. First-time patients usually start with 250 mg; see NAD+ dosage: 250 mg versus 500 mg and how to prepare for your first NAD+ infusion.

If you are interested in injections more generally, our naturopathic doctor offers vitamin injections such as B12 and vitamin D, and our guide to IV drips versus vitamin injections explains how they compare. For oral options, read NMN versus NR versus NAD+.

What each session feels like, step by step

An NAD+ injection

1. A health screen and a review of your medications.
2. A small dose is given into the muscle or under the skin, usually in a few minutes.
3. You may notice warmth, a brief flush, mild nausea or soreness at the injection site.
4. A short observation period, then you head home.

An NAD+ IV infusion

1. The same screen, plus a check of your blood pressure and how you are feeling that day.
2. A nurse places the IV and starts the drip slowly.
3. The rate is adjusted to your comfort. Chest pressure, stomach upset or a restless feeling usually ease when the drip is slowed.
4. The infusion often takes a few hours, followed by a short rest before you leave.

The practical trade-off is time against dose. Injections are quick but carry smaller amounts; an IV takes longer because larger doses are better tolerated when given gradually.

What the research does not cover yet

There are no published head-to-head trials comparing NAD+ injections with NAD+ infusions for energy, focus or healthy ageing. Much of what is known about raising NAD+ comes from oral precursor studies, such as NMN and NR, rather than from injected or infused NAD+ itself. Open questions include:

• How much injected or infused NAD+ reaches the cells that matter, and for how long
• Whether repeated sessions build on each other
• Long-term safety beyond short study periods

That does not mean either option is unsafe when screened and supervised, but it does mean any claim of a certain result should be treated with caution. Our article on NAD+ benefits and research looks at the human studies in more detail.

Comparing value across clinics

Prices for NAD+ vary widely across the GTA, and a lower price can mean a much smaller dose. When comparing, ask how many milligrams are included, who prepares and gives it, how long you will be monitored and whether a health screen is part of the visit. For a broader look at how NAD+ is made in the body, start with what NAD+ is, and see natural ways to support NAD+ for everyday habits that cost nothing.

Practical tips if you decide to try either option

• Eat beforehand. A light meal reduces the chance of nausea with both injections and infusions.
• Hydrate the day before and the day of. Good hydration makes IV placement easier and helps you feel steadier.
• Plan your time. For an infusion, block out the afternoon rather than squeezing it between meetings.
• Ask for the rate to be slowed. If you feel chest pressure, cramping or restlessness during an infusion, slowing the drip usually helps.
• Keep simple notes. Jot down your sleep, energy and focus for a few weeks before and after. This gives you and your clinician something concrete to review.
• Keep the foundations in place. Sleep, regular activity and a balanced diet support your body’s own NAD+ production whatever you choose.

Considering NAD+? Learn about NAD+ IV therapy in Woodbridge or call 905-207-7000 to book a screening visit at AuraWell Health, 4600 Hwy 7, Unit 105, Woodbridge, ON L4L 4Y7, serving Vaughan and Richmond Hill.