NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in every cell. It helps convert food into cellular energy and supports DNA repair. NAD+ levels decline with age, which has made it a central focus of longevity research. NAD+ injections deliver it directly, at home and in minutes. That makes them an alternative to IV infusions, which often take hours, and to oral supplements, which depend on the body converting precursors into NAD+.
What is NAD+?
NAD+ is a coenzyme, a helper molecule that enzymes need in order to function. It is present in every cell in the body. Its best-known role is in energy production: NAD+ helps the mitochondria turn nutrients into usable cellular energy.
NAD+ also supports processes linked to healthy aging. It fuels the enzymes involved in DNA repair, and it activates sirtuins, a family of proteins studied for their role in cellular maintenance and longevity.
Why do NAD+ levels decline with age?
NAD+ levels decline with age because the body uses more of it while making less. Research suggests that demand from DNA repair and from enzymes that consume NAD+ rises over time, while production slows.
That decline happens alongside familiar markers of aging, including lower energy, slower recovery and changes in metabolic health. Restoring NAD+ levels is the rationale behind NAD+ therapy.
What are NAD+ injections studied for?
NAD+ is studied for its role in cellular energy, mitochondrial function, metabolic health and healthy aging. Research has also examined its role in cognitive function and recovery, and human research is expanding quickly as interest in longevity grows.
Clinicians often consider NAD+ as part of a broader longevity protocol. It supports the cellular energy that underpins many of the body's repair and renewal processes.
NAD+ injections vs. IV therapy vs. supplements
NAD+ can be taken three ways, and they differ in convenience and in how NAD+ reaches the body.
Injections. A small subcutaneous injection delivers NAD+ directly. It takes minutes, can be done at home and fits into a regular routine.
IV therapy. IV infusions also deliver NAD+ directly, but they require a clinic visit, and infusions often take several hours.
Supplements. Oral supplements usually contain precursors such as NMN or NR, which the body converts into NAD+. NAD+ taken by mouth is largely broken down during digestion, which is why supplements rely on precursors.
For patients who want direct delivery without clinic visits, injections combine both advantages.
What does an NAD+ injection feel like?
Most people feel a brief sting at the injection site. Some notice temporary sensations shortly after, such as warmth, flushing, mild nausea or a passing feeling of pressure in the chest or stomach. These usually settle within minutes and are more commonly associated with fast IV infusions.
Your clinician sets your dose to suit you. If you notice anything that doesn't feel right, you can message them 24/7 through the patient portal.
How often are NAD+ injections taken?
NAD+ injection schedules vary by protocol. Your clinician sets the frequency based on your goals and how you respond, and refines it at your three-month check-ins.
Longevity protocols reward consistency. NAD+ supports processes that develop over months, so the patients who get the most from it usually plan for a longer arc.
How to start NAD+ therapy
1. Complete the Blueprint Quiz and choose Skin & Longevity as your goal.
2. Complete the clinical pre-screening.
3. A board-certified, state-licensed clinician reviews your answers within 24 hours.
4. Your protocol is prepared by a licensed and inspected 503A pharmacy and delivered within 3 business days of approval.
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IMPORTANT INFORMATION
Compounded medications are prepared by licensed pharmacies for individual patients. They are not FDA-approved and have not been evaluated by the FDA for safety, effectiveness or quality. This article is for educational purposes and is not medical advice. Speak with a licensed clinician about whether a treatment is right for you.
Clinically reviewed by
Amelia Baweja
