NAD+ Kits, Pens & Refills
The complete NAD+ range: at-home injection kits, the reusable pen, 500mg refills, vials and micro-needles. Pre-mixed, third-party tested to 99.5% purity, with free UK delivery.
The complete NAD+ range: at-home injection kits, the reusable pen, 500mg refills, vials and micro-needles. Pre-mixed, third-party tested to 99.5% purity, with free UK delivery.

Auto-injector pen, two 500mg cartridges, about five weeks at the usual rhythm. The complete way into the full NAD+ protocol.
NAD+ is the coenzyme your cells use to make energy and repair themselves. It falls year after year from your late twenties. This is the most direct way to put it back, with no device, no clinic and no drip.
NAD+ fuels the mitochondria, the engines inside every one of your cells. When you raise NAD+ levels, ATP production goes up. The result is sustained energy that doesn't depend on stimulants like caffeine.
The engine, not the stimulantNAD+ is a cofactor in the synthesis of dopamine, serotonin and other neurotransmitters tied to attention and mood regulation. Users report cleaner focus, less afternoon fog and more emotional stability across the day.
Physical and mental effort both deplete NAD+ stores. Replenishing them shortens the recovery window after training, travel, late nights and high-cognitive-load weeks. Less downtime, more output.
NAD+ activates sirtuins, a family of proteins associated with cellular longevity, DNA repair and metabolic regulation. This is the science quietly reshaping the longevity field.
Backed by sirtuin researchNAD+ helps regulate the circadian rhythm by interacting with the SIRT1 pathway. Restoring it supports cleaner sleep architecture: faster onset, more REM, mornings that don't feel borrowed.
Visible markers of aging, such as skin elasticity, tone and texture, are tied to cellular energy decline. Restoring NAD+ supports the cellular machinery that keeps skin and connective tissue functioning the way it did a decade ago.
The questions customers ask most before starting. Anything missing? Talk to us.
NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in every living cell. It's central to energy production, DNA repair and cellular signaling. NAD+ levels decline with age: by age 50, most people have roughly half the NAD+ they had at 20. Restoring it is the closest thing science currently has to a cellular reset.
Most oral NAD+ supplements are precursors (NR or NMN) that the body has to convert. They work, but slowly and partially, with bioavailability around 5–15%. Subcutaneous injection delivers NAD+ directly with bioavailability above 90%.
The [N+] auto-injector uses the same single-use cartridge mechanism that diabetics and GLP-1 patients have used for decades. Sterile, click-stop dosing, no exposed needle.
Most users report changes in sleep quality and morning energy within the first week. Sustained mental clarity and recovery improvements typically arrive around weeks 3–4. The deeper benefits, such as skin and longevity markers, accumulate over months.
Yes, anytime, from your account dashboard. No phone calls, no retention dance. You can also skip a month, swap your shipping date or upgrade to a longer cadence whenever you want.
The most common are temporary: mild warmth or flushing at the injection site for the first few minutes. NAD+ is not recommended during pregnancy or active cancer treatment. We include a full medical overview in your onboarding card.