NAD+ Trial Kit · 500mg — the box, the pen and one 500mg cartridge on a stone kitchen counter in the morning

NAD+ Trial Kit · 500mg

£175.00
£175.00 £220.00
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NAD+ Trial Kit · 500mg — the box, the pen and one 500mg cartridge on a stone kitchen counter in the morning
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  • NAD+ Trial Kit · 500mg — the box, the pen and one 500mg cartridge on a stone kitchen counter in the morning
  • NAD+ Trial Kit · 500mg — the capped pen standing on an oak desk beside a notebook
NAD+ Trial Kit · 500mg

NAD+ Trial Kit · 500mg

£175.00
£175.00 £220.00

The smallest honest way to find out what NAD+ does for you. A real pen, a real 500mg cartridge, ten full doses — around two and a half weeks. Long enough to feel the difference, short enough that you're not betting a month on a maybe.

What's in the box

  • 1 × refillable auto-injector pen with click-stop dosing
  • 1 × 500mg / 3ml NAD+ cartridge (10 doses of 50mg)
  • 10 × sterile, individually wrapped micro-needles
  • 10 × antibacterial wipes
  • Step-by-step instructions printed inside the lid

Everything arrives in our rigid presentation box, each piece in its own place, with the full dosing sequence printed inside the lid so it is there every time you open it.

Feel better, longer.

Food supplement for adults. These statements have not been evaluated by a regulatory body and are not intended to diagnose, treat, cure or prevent any disease.
The pen is yours to keep Refills fit it from here on
10 full doses 500mg — about 2.5 weeks
Nothing else to buy Needles, wipes and sharps bin included
Cold-chain shipping Insulated packaging, free UK express
01 — Essentials

Before you start

How to dose, how to store it, and whether it's right for you.

How to use it

Start with one 0.3ml dose daily for the first three days, then move to every other day — ten doses, roughly two and a half weeks. Some people settle at once or twice a week after that; there's no prize for going faster. Let the cartridge warm up out of the fridge for 20–30 minutes first, dose at 45° into the stomach, hip or outer thigh, and rotate the site each time.

This protocol reflects common practice and what customers tell us, not clinical proof. Confirm your dose with a licensed prescriber. The reasoning behind the 50mg dose is in our NAD+ dosage guide.

Good to know

  • What's in the cartridge: pure nicotinamide adenine dinucleotide and sterile solution. Nothing else.
  • Storage: cartridge in the fridge; pen, case and consumables at room temperature.
  • Shelf life: 12 months unopened.
  • How it feels: most people report feeling alert rather than anything dramatic. A brief warmth or mild sting during the dose is common and passes in seconds.
  • The pen is yours to keep — refills fit it from here on.

Is it for me?

Adults 18+. Not suitable during pregnancy or breastfeeding, or if you have a current or previous cancer diagnosis, an organ transplant, immunosuppression, a heart-rhythm condition such as atrial fibrillation, a recent skin graft, or significant liver or kidney impairment. If you take prescribed medication or you're unsure, speak to your doctor before starting.

Not sure which kit?

Compare the Trial, Discovery and Injection kits side by side: how many doses each holds, how long it lasts, pen or syringe, and the cost per dose. Read the kit comparison.

02 — Benefits

Why NAD+

Before you commit to a month, it's fair to want to know what you're committing to. Here's what NAD+ does — and this kit is the smallest honest way to find out whether it does it for you.

01

Cellular Energy

+

NAD+ fuels the mitochondria — the engines inside every one of your cells. Raising NAD+ lifts ATP production for sustained energy that doesn't depend on stimulants.

The engine, not the stimulant
02

Mental Clarity & Focus

+

NAD+ is a cofactor in the synthesis of neurotransmitters tied to attention and mood. People report cleaner focus and less afternoon fog.

03

Faster Recovery

+

Effort depletes NAD+ stores. Replenishing them shortens the recovery window after training, travel and high-load weeks.

04

Longevity & DNA Repair

+

NAD+ activates sirtuins — proteins associated with cellular longevity, DNA repair and metabolic regulation.

Backed by sirtuin research
05

Deeper Sleep

+

NAD+ helps regulate the circadian rhythm via the SIRT1 pathway, supporting cleaner sleep and mornings that don't feel borrowed.

06

Skin & Visible Ageing

+

Visible markers of ageing track cellular energy decline. Restoring NAD+ supports the machinery that keeps skin functioning the way it did a decade ago.

03 — How to use

How to use your NAD+ Trial Kit

Everything here is the same as the full kit, just at trial size. Your first dose will be the hardest, and it won't be hard.

  1. 01

    Take the cartridge out of the fridge

    Twenty to thirty minutes before your first dose. Warm solution is far more comfortable than cold.

  2. 02

    Seat the cartridge

    Open the pen, drop the 500mg / 3ml cartridge in and screw it closed. It stays there for all ten doses.

  3. 03

    Fit a fresh needle

    A new sterile micro-needle every single time. Ten are included — one per dose.

  4. 04

    Dial and prime

    Set the pen to 0.3ml and prime until a small bead appears at the tip, clearing any air.

  5. 05

    Clean, pinch, inject

    Wipe a fatty area — lower stomach, hip or outer thigh — pinch a fold of skin, go in at 45° and press the plunger fully. Hold a few seconds, then withdraw. Rotate the site each time.

  6. 06

    Dispose safely

    Needle into the sharps bin, pen back in its place, cartridge back in the fridge.

Protocol: one dose daily for the first three days, then every other day — ten doses, roughly two and a half weeks. Keep the cartridge refrigerated; the pen and consumables are fine at room temperature.
04 — FAQs

Frequently asked questions

The questions customers ask most before starting. Anything missing? Talk to us.

What exactly do I get? +

A refillable auto-injector pen, one 500mg / 3ml NAD+ cartridge (ten 50mg doses), ten sterile micro-needles, ten antibacterial wipes, a sharps bin and a quick-start guide, all packed in a compact zip case. Nothing else to buy to get started.

Is the NAD+ the same as in the full kit? +

Identical. Same cartridge, same pen, same protocol — there's just one cartridge instead of two. The only thing you're trying at a smaller scale is the commitment.

Will ten doses be enough to tell? +

For most people, yes. Two and a half weeks is long enough to notice whether your energy and focus have a different floor. Some effects — recovery, sleep, skin — build over longer use, so a first cartridge tells you whether it's worth continuing rather than the full story.

What do I buy next? +

You keep the pen, so from here you only ever buy NAD+. Most people move to the two-cartridge Refill Kit; if you dose lightly, a single 500mg cartridge may be all you need.

What's in the cartridge? +

Pure nicotinamide adenine dinucleotide and sterile solution. Nothing else added.

Does it hurt, and will I feel odd afterwards? +

The needles are ultra-fine and go into fatty tissue — most people feel a light pinch. During the dose a brief warmth or flush is common and passes in seconds. Most people report feeling alert rather than anything dramatic.

Who shouldn't use it? +

Adults 18+ only. Not suitable during pregnancy or breastfeeding, or if you have a current or previous cancer diagnosis, an organ transplant, immunosuppression, a heart-rhythm condition such as atrial fibrillation, or significant liver or kidney impairment. This product is not intended to diagnose, treat, cure or prevent any disease. If you take prescribed medication or you're unsure, speak to your doctor before starting.

Still have questions? Talk to a human
05 — Reviews

What our customers say

4.7 / 5 based on 61 reviews
★★★★★

Exactly what a trial should be

Ten doses was enough to decide. Ordered the refill on day twelve.

Laura N.✓ Verified customer
★★★★★

Glad I didn't start with the big kit

Wanted to know I'd actually stick with it before spending three hundred quid.

Ben A.✓ Verified customer
★★★★★

Noticeable by week two

Nothing dramatic on day one. By the second week I was clearly sharper in the mornings.

Sofia R.✓ Verified customer
★★★★★

Keeping the pen makes it a no-brainer

You're basically paying for the NAD+ and getting the hardware thrown in.

Michael O.✓ Verified customer

Reviews shown are illustrative placeholders and will be replaced with verified customer feedback.

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