Buy NAD+ — Nicotinamide Adenine Dinucleotide

Buy NAD+ (Nicotinamide Adenine Dinucleotide) from Mymetabolism for clinically supported cellular energy, anti-ageing, and metabolic benefits. NAD+ is a coenzyme found in every living cell — essential for converting food into usable energy, repairing DNA damage, activating longevity genes, and maintaining healthy cellular function. NAD+ levels naturally decline by up to 50% between the ages of 20 and 50, and this decline is now strongly associated with reduced energy, slower metabolism, cognitive decline, and accelerated ageing. Every vial of NAD+ we supply is HPLC-verified at 99% purity with a full Certificate of Analysis on every batch.

According to a **systematic review of NAD+ clinical research published in ScienceDirect**, oral and parenteral NAD+ supplementation consistently demonstrates biochemical target engagement — raising measurable NAD+ levels in blood and cells — alongside improvements in energy metabolism, mitochondrial function, and inflammatory markers. The **NHS guidance on healthy ageing** highlights the role of cellular energy and metabolic health in long-term wellbeing, the precise mechanisms that NAD+ supplementation is designed to support.

What is NAD+ and how does it work?

When you buy NAD+, you are replenishing one of the most fundamental coenzymes in human biology. NAD+ is involved in over 500 enzymatic reactions in the body. Its primary roles include converting nutrients from food into adenosine triphosphate (ATP) — the molecule your cells use as fuel — and activating sirtuins, a family of proteins known as longevity genes that regulate cellular repair, inflammation, and metabolic efficiency.

As NAD+ levels decline with age, these processes slow. Cells produce less energy, DNA damage accumulates more quickly, and the body’s repair mechanisms become less efficient. Restoring NAD+ levels through supplementation supports a return toward youthful cellular function. Injectable NAD+ delivers the coenzyme directly into the bloodstream, bypassing the digestive system and achieving significantly higher bioavailability than oral supplements — which typically absorb at only 10 to 20% compared to close to 100% for injectable forms.

What are the benefits of NAD+?

Clinical and preclinical research into NAD+ supplementation consistently identifies the following benefits when levels are restored:

Energy and fatigue. NAD+ is the primary driver of mitochondrial energy production. Restoring NAD+ levels supports faster and more efficient ATP synthesis, reducing fatigue and improving sustained energy throughout the day. Many customers who buy NAD+ report noticeable improvements in energy within the first few weeks of treatment.

Cognitive function. NAD+ supports the production of neurotransmitters and protects neurons from oxidative damage. Research links declining NAD+ levels to reduced mental clarity, brain fog, and impaired memory. Restoring levels supports sharper focus and cognitive performance.

Metabolic support. NAD+ plays a direct role in glucose metabolism and insulin sensitivity. Studies show that maintaining optimal NAD+ levels is linked to better metabolic regulation, improved body composition, and protection against age-related metabolic decline — making it a valuable complement to weight management programmes.

DNA repair and anti-ageing. NAD+ activates PARP enzymes — the primary defenders against DNA damage — and sirtuins, which regulate cellular ageing processes. Higher NAD+ levels are directly associated with more efficient DNA repair and a slower rate of biological ageing at the cellular level.

Inflammation reduction. Chronic low-grade inflammation is a key driver of most age-related diseases. NAD+ supplementation has been shown to reduce inflammatory markers and support the body’s natural anti-inflammatory pathways.

Who should buy NAD+?

NAD+ is suitable for adults seeking to support cellular energy, metabolic health, cognitive function, and healthy ageing. It is particularly beneficial for those experiencing fatigue, brain fog, or metabolic slowdown, those over 40 whose NAD+ levels have naturally declined significantly, those using GLP-1 weight loss medications who want to support their metabolic health alongside treatment, and practitioners incorporating NAD+ into IV therapy or wellness protocols. Contact our 24/7 support team before ordering if you have any existing medical conditions or are currently taking other medications.

How to use NAD+ injections

NAD+ is administered intramuscularly or intravenously depending on the protocol. Always follow the guidance of a qualified healthcare professional when administering NAD+ injections. The typical dosing range for intramuscular administration is 100mg to 500mg per session, two to three times per week during an initial loading phase, followed by a maintenance schedule of once weekly or as directed by your practitioner.

For intravenous administration, NAD+ is typically diluted in saline and infused slowly over 1 to 4 hours to minimise side effects such as flushing or nausea. Always reconstitute with sterile water for injection, use immediately after preparation, and dispose of all vials, needles, and syringes as clinical waste. Never reuse needles between injections.

Store NAD+ vials refrigerated at 2–8°C away from light. Do not freeze. Use within the timeframe stated on the vial once reconstituted.

Why buy NAD+ from Mymetabolism?

When you buy NAD+ from Mymetabolism you receive a fully verified, pharmaceutical-grade product sourced directly from manufacturers. Every batch is independently HPLC-tested and ships with a Certificate of Analysis confirming 99% purity. Our 24/7 support team is available to answer any questions about dosing, storage, or administration. Read our **verified customer reviews** to see how our customers rate our product quality. Browse our **full product range** for all available wellness and weight management products.

✓ HPLC-verified at 99% purity
✓ Certificate of Analysis on every batch
✓ Free discreet UK shipping
✓ 24/7 support team
✓ Direct from manufacturers
✓ 4.70★ from 847 verified customers.