Energy that lasts past 3pm
NAD+ is the coenzyme your mitochondria use to turn food into fuel. More of it, less of that heavy, dragging feeling.
Lab tested
Third-party verified · 99.5% purity
30-second ritual
Once daily, at home
Subscription-friendly
Pause or cancel anytime
Human support
Real people, under 2-min reply
01 — Shop
Buy NAD+
One protocol, three ways to start. Pick the kit if you're new, the subscription if you want it on autopilot, or refills and replacements once you know what you need.
Starter
THE [NAD] PROTOCOL
The [NAD] Protocol · Kit 01
Full starter kit. Auto-injector pen, two cartridges, alcohol wipes and onboarding card.
from £229 one-time
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Most popular
[NAD] SUBSCRIPTION
[NAD] Subscription · Monthly
Kit on first delivery, refills every month. Save 20%, pause or cancel anytime.
from £99 /month
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Refill
[NAD] REFILL
[NAD] Refill · Cartridges
Two 5 ml cartridges. Pairs with your existing [N+] auto-injector.
from £69 one-time
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Replacement
[N+] AUTO-INJECTOR
[N+] Auto-Injector
Replacement pen only. Anodized aluminum body, click-stop dose dial.
from £119 one-time
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02 — Support
How can we assist you?
Live and human support, every step of the way. Real people who understand the protocol, your subscription and your questions about NAD+.
< 2 min
Average reply time
7 days
A week, 9–18h CET
0
Bots or scripts
03 — Experience
Join The [NAD] Shop Experience
Your cells run on NAD+. Levels drop as you age. Here is what topping them back up is designed to support.
Skin that repairs itself
Supports DNA repair and cell signalling — the quiet maintenance work your skin does while you sleep.
A sharper, quieter mind
Clarity without the caffeine spike. Stay present, focused, and unbothered by the 2pm fog.
Ageing well, from the inside out
Real ageing happens at the cellular level. That's where we work — supporting the repair of damaged cells for a complexion that reflects how you actually feel.
![NAD+ auto-injector kit — The [NAD] Shop](https://cdn.shopify.com/s/files/1/1075/1587/1581/files/the-nad-shop-kit-2.png?v=1783864777)
![NAD+ auto-injector kit — The [NAD] Shop](https://cdn.shopify.com/s/files/1/1075/1587/1581/files/the-nad-shop-pen.png?v=1783864777)
![NAD+ auto-injector kit — The [NAD] Shop](https://cdn.shopify.com/s/files/1/1075/1587/1581/files/the-nad-shop-kit.png?v=1783864777)
![NAD+ auto-injector kit — The [NAD] Shop](https://cdn.shopify.com/s/files/1/1075/1587/1581/files/the-nad-shop-hand-4.png?v=1783864987)
04 — Benefits
NAD+ Benefits
NAD+ is the molecule that powers your cells. It declines with age, with stress and with modern life. Supplementing it directly is the closest thing science has to a cellular reset button.
01Cellular Energy
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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 stimulant
02Mental Clarity & Focus
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NAD+ 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.
03Faster Recovery
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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.
04Longevity & DNA Repair
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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 research
05Deeper Sleep
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NAD+ 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.
06Skin & Visible Aging
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Visible markers of aging — skin elasticity, tone, 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.
05 — FAQs
Frequently asked
The most useful questions our customers asked before they started. Anything missing? Talk to us.
What is NAD+ and why does it matter? +
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.
How is the injection different from oral NAD+ supplements? +
Most oral NAD+ supplements are precursors (NR or NMN) that the body has to convert. They work, but slowly and partially — bioavailability is around 5–15%. Subcutaneous injection delivers NAD+ directly with bioavailability above 90%.
Is the auto-injector safe? Is it medical-grade? +
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.
How long until I feel a difference? +
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 — skin, longevity markers — accumulate over months.
Can I pause or cancel my subscription? +
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.
Are there side effects or contraindications? +
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.
Still have questions?
Talk to a human