Cellular Energy
NAD+ fuels mitochondria, your cells’ power plants. Higher levels mean more sustained energy throughout the day without stimulants.
NAD+ The One
£199.00
One formula, made properly. A weekly 1000mg NAD+ dose to support cellular energy, clarity and recovery — delivered in a sterile vial with a guided pen.
Complimentary chilled UK delivery · 30-day returns
Third-Party Tested
99.5%+ purity verified
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Next-day DPD tracked
An all-in-one NAD+ kit for use at home. Each box carries four sterile 1000mg vials and a guided pen, so a full month of the protocol arrives ready to use with close to 100% bioavailability.
Four sterile 1000mg NAD+ vials, one guided dosing pen, micro needles, alcohol swabs and a sharps bin — everything needed for the month in a single box.
Bring the vial to room temperature. Attach the pen, dial to 1000mg and administer into the abdomen or thigh. One dose weekly, ideally the same day each week.
Every batch is third-party tested for purity and endotoxins, verified at 99.5% or above. The certificate of analysis for your batch number is available on request.
Complimentary next-day DPD delivery in chilled packaging, dispatched within one working day. Refrigerate on arrival between 2–8°C. Unopened boxes may be returned within 30 days.
The science
Why Your Body Needs NAD+
NAD+ helps support cellular energy, repair pathways, and healthy ageing. Levels naturally decline with age.
DNA Repair
NAD+ activates sirtuins and PARP enzymes responsible for repairing damaged DNA, a key factor in healthy ageing and longevity.
Longevity Support
Published research links NAD+ to improved metabolic function, better sleep, sharper cognition, and reduced inflammation.
Your NAD+ is declining, with or without you.
Research suggests NAD+ levels naturally decline with age. Lower levels have been associated with reduced cellular energy and slower recovery.
65%
NAD+ decline by age 70
| Age | Relative NAD+ level |
|---|---|
| 20 | 100% |
| 30 | 80% |
| 40 | 60% |
| 50 | 45% |
| 60 | 35% |
| 70 | 25% |
Source: Massudi et al. (2012), PLoS ONE
One molecule, three things you feel.
Pharmaceutical-grade NAD+, selected for purity, absorption, and real results.
+ Learn more about NAD+
Sustained energy
NAD+ fuels mitochondria, your cells’ power plants, helping your body function at its best.
Mental clarity
Supports brain cell repair and neurotransmitter function for sharper focus and cognition.
Recovery & repair
Activates sirtuins and PARP enzymes that repair damaged DNA, key to healthy ageing.
Better sleep
Regulates circadian rhythm and cellular processes linked to deeper, more restorative sleep.
How The One Compares
| Measure | The One | IV Clinic (250mg) |
|---|---|---|
| Bioavailability | ~100% | ~100% |
| Cost per 1000mg from | £40 | £1,000–2,000 |
| At home | ||
| Time per session | 1 minute | 2–4 hours |
| 3rd party lab tested | Varies | |
| 99.5%+ purity | Varies |
The ritual
Everything arrives ready. Nothing else required.
Four sterile vials, one guided pen and the alcohol swabs you need for the month — presented in a single box, so the protocol takes under a minute a week.
Customer reviews
Rated 5.0 out of 5
Based on 6 verified purchases
Charlotte M.
London · August 2026
Steady energy, no crash
Three months in and the afternoon slump has gone. It’s the only thing I’ve changed, and the difference is unmistakable.
Verified purchase
Rupert A.
Edinburgh · July 2026
Simple enough to keep up
One dose a week, done in under a minute. I’ve abandoned every other supplement I’ve tried — this one has stayed.
Verified purchase
Priya S.
Manchester · July 2026
Recovery is noticeably faster
I train five days a week and travel constantly. My legs recover quicker and jet lag is far less brutal than it used to be.
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Elena V.
Bath · June 2026
Sleeping properly again
I fall asleep faster and wake up clear-headed. The packaging and the pen feel genuinely considered, too.
Verified purchase
James O.
Bristol · June 2026
Worth every penny
£199 felt steep until I compared it with a clinic drip. Same strength, at home, on my own schedule.
Verified purchase
Dr. Naomi K.
Leeds · May 2026
Clean formulation
As a clinician I read labels closely. No fillers, no preservatives, honest dosing. I recommend it to patients.
Verified purchase