All PeptidesCellular Energy & Longevity

NAD+ Therapy: Injectable Support for Cellular Energy and Metabolic Health

NAD+ is a coenzyme essential for cellular energy, DNA repair, and metabolic function. Injectable NAD+ therapy replenishes declining NAD+ levels efficiently — physician-prescribed in San Antonio & Boerne, TX.

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Medically reviewed by Dr. Jamie Lynn Jaqua, MD · Board-Certified Family Medicine · Vitality Texas

Delivery method note: Vitality Texas offers NAD+ as a subcutaneous injectable peptide protocol. For NAD+ IV infusion therapy — the same molecule administered directly into the bloodstream at our clinic — see our IV therapy program.

How It Works

Why NAD+ Levels Matter — and What Injectable NAD+ Does

NAD+ (nicotinamide adenine dinucleotide) is present in every cell in your body. It is essential for the mitochondrial processes that produce ATP — the energy currency of the cell — and for activating PARP enzymes, which are critical for DNA repair. NAD+ also regulates sirtuins, a class of proteins studied in the context of cellular stress response and longevity.

Research documents that NAD+ levels decline significantly with age — typically by 40–60% between the ages of 40 and 60. This decline is associated with reduced cellular energy production, impaired DNA repair capacity, and changes in metabolic function. Oral NAD+ precursors (NMN, NR) are available, but they must be converted by the body before use, and absorption is less efficient than injectable or IV delivery.

Injectable subcutaneous NAD+ bypasses first-pass metabolism, delivering the coenzyme systemically more efficiently than oral supplements. Physicians prescribe injectable NAD+ protocols to support cellular energy, metabolic health, and cognitive function in adults experiencing age-related decline or seeking longevity optimization.

Benefits

What NAD+ Injectable Therapy Supports

Benefits are supported by emerging research and physician-reported outcomes. Language reflects supported, not guaranteed, outcomes.

Cellular Energy

  • Supports mitochondrial ATP production
  • Patients report improved sustained energy levels
  • Addresses age-related NAD+ decline at the cellular level

Cognitive Support

  • NAD+ involved in neuronal function and signaling
  • Emerging research in cognitive aging and brain health
  • Patients report improved mental clarity

Metabolic Health

  • Supports insulin sensitivity signaling pathways
  • Studied alongside weight management and metabolic protocols
  • Commonly paired with GLP-1 therapy for metabolic optimization

DNA Repair & Longevity

  • PARP enzymes (critical for DNA repair) require NAD+
  • Growing longevity research interest in NAD+ restoration
  • Supports sirtuins — proteins involved in cellular stress response
Who Benefits

Good Candidates for Injectable NAD+ Therapy

Adults experiencing age-related energy decline — persistent fatigue, reduced cognitive sharpness, or slower recovery — are common candidates for injectable NAD+ therapy. Patients seeking metabolic optimization alongside TRT or GLP-1 medications often include NAD+ as part of a comprehensive longevity protocol.

Injectable NAD+ is a component of our full peptide therapy program. For patients who prefer clinic-administered delivery, we also offer NAD+ IV infusion therapy — the same molecule delivered intravenously for a different pharmacokinetic profile. Dr. Jaqua discusses which delivery method is appropriate for your goals.

Every NAD+ protocol at Vitality begins with a physician evaluation and appropriate labs. Dr. Jaqua reviews your metabolic panel and medical history before prescribing any protocol.

A Note on Regulatory Status

NAD+ is available via licensed compounding pharmacy with a physician's prescription. It has not received drug approval from the FDA. Importantly, NAD+ was not subject to the peptide compounding restrictions that affected peptides such as BPC-157 and TB-500. NAD+ was never on the Category 2 restricted list and does not require reclassification — it has remained available through licensed 503A compounding pharmacies.

At Vitality, injectable NAD+ is sourced from licensed compounding pharmacies and prescribed by Dr. Jaqua following a comprehensive evaluation. Off-label use is discussed transparently at your consultation.

FAQ

NAD+ Injectable Therapy Questions & Answers

Everything you need to know about injectable NAD+ therapy at Vitality Texas.

References

  1. Rajman L, Chwalek K, Sinclair DA. “Therapeutic Potential of NAD-Boosting Molecules: The In Vivo Evidence.” Cell Metabolism. 2018;27(3):529–547.
  2. Schultz MB, Sinclair DA. “Why NAD+ Declines during Aging: It's Destroyed.” Cell Metabolism. 2016;23(6):965–966.
Get Started Today

Ready to Support Cellular Energy and Longevity?

Injectable NAD+ therapy starts with a physician evaluation. Book your free consultation with Dr. Jaqua to discuss whether NAD+ is right for your goals.

Request Appointment(830) 368-4122

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