NAD+ Therapy at Longevity Clinics (2026)
Nicotinamide adenine dinucleotide (NAD+) is a coenzyme found in every living cell, essential for energy metabolism, DNA repair, and cellular signaling. NAD+ levels decline dramatically with age — by age 50, most people have half the NAD+ they had at 20. NAD+ therapy replenishes these declining levels through intravenous infusion of NAD+ precursors (typically nicotinamide riboside or nicotinamide mononucleotide) or direct NAD+ administration.
How NAD+ Therapy Works
NAD+ works through several key pathways relevant to longevity: (1) It activates sirtuins (SIRT1–7), a family of proteins that regulate cellular health, DNA repair, and mitochondrial function — often called the "longevity proteins." (2) It supports PARP enzymes that repair damaged DNA. (3) It fuels mitochondrial energy production through the electron transport chain. (4) It modulates the immune system and reduces age-related inflammation ("inflammaging"). IV administration bypasses digestive breakdown, achieving 5–10x higher blood concentrations than oral supplements.
Scientific Evidence
A landmark 2022 study in Nature Metabolism showed that NAD+ precursor supplementation improved muscle insulin sensitivity in older adults. A 2023 Cell Metabolism trial demonstrated that NR supplementation reduced biological age markers by 2–3 years over 12 weeks in healthy middle-aged adults. However, direct evidence that NAD+ IV therapy extends lifespan in humans remains limited — most longevity claims are extrapolated from animal studies. A 2025 systematic review in Nutrients found consistent improvements in biomarkers but called for larger, longer human trials.
Pricing Overview
NAD+ IV therapy sessions typically cost EUR 200–500 (or USD 250–600) per session in Europe, and USD 300–1,500 in the US. Most clinics recommend 4–8 sessions for initial optimization, then monthly maintenance. Some clinics include NAD+ as part of comprehensive programs rather than charging per session.
Clinics Offering NAD+ Therapy (11)
Filtered from 55 clinics worldwide based on published treatment availability.
Progevita
SHA
Eterna
Next Health
AEON
Chi
LONVIDA
Biocure
10X Health
Longevity Lab
Forever Health
Frequently Asked Questions
Common questions about NAD+ Therapy at longevity clinics.
Does NAD+ therapy actually work for anti-aging?
NAD+ therapy shows strong promise in biomarker improvement. Studies consistently show increased cellular NAD+ levels, improved mitochondrial function, and enhanced DNA repair capacity. However, direct evidence of lifespan extension in humans is not yet available. The strongest evidence supports metabolic benefits (insulin sensitivity, energy levels) rather than dramatic age reversal.
How long does a NAD+ IV session take?
A typical NAD+ IV infusion takes 2–4 hours. Some clinics offer accelerated protocols (1–2 hours) at higher concentrations. Oral NAD+ supplements take seconds but achieve lower blood levels. Most longevity clinics recommend starting with 4–6 IV sessions over 2–4 weeks.
Are there side effects of NAD+ therapy?
NAD+ IV therapy is generally well-tolerated. Common side effects include mild nausea, flushing, and a sensation of chest pressure during infusion. These can usually be managed by slowing the drip rate. Oral supplements may cause mild gastrointestinal discomfort. There is no evidence of serious adverse effects in clinical trials to date.
Which clinics offer the best NAD+ therapy?
Progevita (Spain), SHA Wellness Clinic (Spain), and Eterna Health (Canada) are among the highest-rated clinics offering NAD+ therapy with comprehensive monitoring. Compare all 11 clinics offering NAD+ therapy on World Longevity Clinics.
Can I take NAD+ supplements instead of IV therapy?
Oral NAD+ precursors (NR, NMN) are widely available and show measurable NAD+ level increases in blood tests. However, IV therapy achieves significantly higher peak concentrations. Many longevity specialists recommend a combined approach: oral supplements for daily maintenance and periodic IV sessions for optimization.