Your cells are running on half-empty batteries
Your 37.2 trillion cells are powered by NAD+, a coenzyme that fuels energy production and repair throughout your body. NAD+ levels fall with age, lifestyle and stress, and by the time you're 70 your cellular fuel has dropped by up to 65%.
It's like trying to power your home on a generator running at half capacity. Some things shut off. Everything else runs slower.
NAD+ levels fall as we age
Every year, our bodies make less NAD+ than they did. We don't feel the first few years of it. Then one day the long walk needs consideration, and we put it down to age.
It's like trying to run your whole house on a phone charger.
What you'll notice
What customers typically tell us. Everyone is different, and results build over months, not days.
Morning energy feels more natural, less forced.
Clearer thinking returns. Steadier mood, better focus.
Physical activities feel achievable again.
Friends ask what you're doing differently.
Nature + neuroscience = Koru Revitacell
Revitacell works by supporting NAD+, the molecule that powers every cell in your body. What makes it different is that it supports the entire NAD+ cycle, not just one piece of it.
Formulated with a Cambridge University neuroscientist, made by our own team in Canterbury, and tested batch by batch by an independent laboratory in Christchurch.
Three phases of cellular energy. One capsule covers all three.
Twelve actives, each chosen for one job in the cycle. Two capsules in the morning with food.
12 actives to revitalise your cells
Every active, named and dosed on the label. Bioavailable forms throughout.
Direct NAD+ precursor, like premium fuel for your cells
Methyl donor that helps clear NAD+ by-products
The form your cells prefer; helps turn NAD+ into ATP
Supports skin hydration and joint comfort
Antioxidant that works in every part of the cell
Blueberry compound that supports the sirtuins
B1 (benfotiamine), B6 (P-5-P), methylated folate, B12
Shields cells during increased activity
Helps convert NMN into NAD+
Four things are quietly draining the tank
Your body spends NAD+ all day on DNA repair, energy production, cellular maintenance and its normal response to everyday stress. The trouble is what happens as we age:
That's why just adding more NMN is only part of the answer. Revitacell fills the bucket and patches the holes.
Real benefits for real life
Cellular energy isn't a number on a blood test. It's the difference between watching and joining in.
Praise for NAD+ from the experts
Public comments on NMN and NAD+. None of these researchers are affiliated with Koru Nutrition or endorse Revitacell.
"And what we've shown in mice at least is that if you give them this molecule that I'm taking, NMN, ... those mice could run 50 percent further."
"NAD+ levels are heavily influenced by lifestyle and particularly things that cause energy stress, like fasting, caloric restriction, and exercise, which all increase the NAD+:NADH ratio."
"There are some animal data suggesting that increasing NAD+ either by taking NMN can increase lifespan."
"I was surprised at just how much of a difference it made"
Verbatim from verified buyers on korunutrition.co.nz. Everyone is different; some customers tell us they felt nothing, and the guarantee is for them too.
"Certainly more energy, and I don't have that 3 o'clock slump anymore."
"I don't know whether it is a placebo thing or not. I don't want to stop taking them to find out. I feel alive, awake, alert, enthusiastic. That is a great way to start to the day."
"I am on my 2nd bottle now. Changes are retrospective as you don't always notice things as they happen but looking back you go 'oh yeah'. The afternoon siesta has gone. Give Revitacell a go but remember to stick at it as it does take time."
"Wouldn't be without it. It's true that it takes the first four bottles to feel the steady lift that you hear talked about by others. At 73 I wanted to give my system some good support, this seems to be the answer."
"I don't get as tired as I used to and when tired I pick up a lot quicker. I also have more energy. My husband and I take this product and would recommend."
"I have found it does make a difference to my memory. I was struggling to learn new line dances and found that it was much easier after I had been taking them."
Koru Revitacell is rated 4.4 out of 5 from 51 verified buyer reviews on korunutrition.co.nz (read 14 September 2026). Quotes trimmed for length only.
Five phases of Koru Revitacell
Benefits build with consistent use. This is the shape most customers describe.
- NAD+ levels begin rising
- Some notice better sleep
- Subtle energy improvements
- Morning energy more consistent
- Mental fog starts lifting
- Less afternoon fatigue
- Physical activities feel easier
- Recovery time improves
- Mood and motivation lift
- Sustained all-day energy
- Clearer thinking
- Overall vitality improved
- Benefits compound
- Cellular support continues
- Quality of life holds
What customers typically report. Everyone is different and results vary. That's why the guarantee runs for 60 days.
How Revitacell compares
Most NAD+ products on the shelf fall into one of three groups.
Category descriptions based on product labels we've reviewed. Always check the label of any product you're comparing.
Before you order, the honest bit
On any prescription medication? Ring our team on 0800 99 99 80 or ask your pharmacist. We'll email the full label so you can check together. Made in a facility that also handles fish and crustacean ingredients.
Choose your supply
Two capsules each morning. That's all it takes to begin supporting your cells.
GUARANTEE
Take it every morning for two months. If you're not fully satisfied, ring 0800 99 99 80 (Mon to Fri, 9am to 5pm) or email info@korunutrition.co.nz and we refund you, empty bottles included. If we can't help you feel better, we don't deserve your money.
Frequently asked questions
What's in Koru Revitacell? +
Twelve ingredients that work together to support cellular energy, in four groups.
Core NAD+ restoration. NMN 500mg, the star ingredient, which your cells convert directly to NAD+.
Methylation support. TMG 250mg to support healthy homocysteine levels; vitamin B6 as P-5-P 5mg; folate as 5-MTHF 200μg, the active form that works even with common genetic variants; vitamin B12 as methylcobalamin 50μg.
Mitochondrial energy. CoQ10 as ubiquinol 50mg, the spark plug that helps turn NAD+ into usable energy; alpha-lipoic acid 100mg, an antioxidant that protects energy production; vitamin C 250mg, which protects cells and regenerates other antioxidants.
Longevity and support. Pterostilbene 20mg to support the sirtuins; magnesium bisglycinate 50mg, needed by more than 300 enzymes including those that convert NMN; hyaluronic acid 50mg for skin hydration and joint comfort; benfotiamine (vitamin B1) 10mg for nerve and glucose metabolism support. Each is in a bioavailable form, and the formula is built so every component supports the others.
How is Revitacell different from other NMN supplements? +
Revitacell supports the complete NAD+ pathway. Most products provide NMN and stop there. We add methylation support to help clear the by-products, mitochondrial nutrients to turn NAD+ into energy, and pterostilbene for the sirtuins. It's the difference between adding fuel and tuning the whole engine.
How is this different from CoQ10 or other energy supplements? +
Most energy supplements work on the symptom. Revitacell includes CoQ10 alongside the other compounds so it can work on the root: how much energy your cells can produce in the first place.
Should I switch from NR to Revitacell? +
NMN needs fewer conversions than NR to become NAD+, and Revitacell includes the supporting nutrients that NR products leave out. Many customers who plateaued on NR tell us they noticed a difference on the complete formula.
When will I notice results? +
Initial changes (energy, sleep) typically start within 2 to 4 weeks. Mental clarity and endurance tend to follow around weeks 4 to 8, with the full picture by week 12. Benefits build gradually and last with consistent use. Everyone is different, so results naturally vary.
How do I know it's working? +
NAD+ blood tests exist but they're expensive and not widely available. The best indicator is how you feel: more energy, especially in the afternoon, clearer thinking, better stamina, better sleep and quicker recovery after exercise. Many customers also mention their skin and joints. Those day-to-day changes mean more than a number on a test.
What if I don't see results? +
Ring 0800 99 99 80 within 60 days, Monday to Friday 9am to 5pm, and our Rangiora team will refund you, empty bottles included. No forms, no returns.
Are there side effects I should watch for? +
Revitacell is well tolerated by most people. Occasionally someone gets mild digestive upset or nausea when starting, especially on an empty stomach, so take it with food. The B vitamins may make your urine brighter yellow, which is harmless. Some people report vivid dreams at first. Unlike niacin-based products there's no flushing. If anything unusual happens, drop to one capsule a day for a week, then go back to two.
How long should I take it? +
Most people continue long term, because NAD+ decline is ongoing. Think of it like exercise: the benefits continue with consistent use.
Can diet alone provide these benefits? +
Foods like broccoli, avocado and edamame contain NMN, but only in tiny amounts. You'd need to eat many kilograms of them a day to match one serve, and age reduces how well the body makes NAD+ from food anyway.
Am I too young at 45? +
No. NAD+ decline begins in your 30s. Starting earlier means supporting your levels before the drop gets steep.
Can I take this with my medications? +
All the ingredients are compounds your body already uses, and most people take Revitacell alongside their usual medicines without trouble. If you take blood thinners, statins or any prescription medicine, or you're going through medical treatment, check with your doctor or pharmacist first. We can email you the full label.
Do you ship outside New Zealand? +
Yes. We ship globally with DHL. Shipping costs vary from domestic NZ rates, and taxes or customs duties may be payable on entry depending on your country's rules.
The cellular energy crisis: a deeper dive
You've probably noticed it happening gradually. The long walks that were once effortless now need a bit of planning. The mental sharpness you've always prided yourself on occasionally feels clouded. The resilience that carried you through decades seems a little thinner.
This isn't just "ageing". It's a change in cellular energy production that science has only recently understood, and, more importantly, learned how to support.
The NAD+ story: your body's master molecule
To understand why you feel the way you do, we need to look at NAD+ (nicotinamide adenine dinucleotide), arguably the most important molecule you've never heard of. NAD+ isn't just another vitamin or nutrient. It's a coenzyme, a helper molecule that makes hundreds of reactions possible in every cell of your body. Without NAD+, life stops.
NAD+ has four big jobs. It drives energy production by shuttling electrons in your mitochondria, converting food into ATP, the cellular energy currency. It powers the PARP enzymes that repair the thousands of small DNA breaks that occur daily. It activates sirtuins, the proteins that help regulate how cells age. And it lets cells respond to stress and keep their balance. Think of NAD+ as both the fuel and the maintenance crew for your cellular machinery.
The decline: understanding your energy loss
Researchers have mapped how NAD+ falls with age in human tissue. The numbers tell the story of why you feel different than you did decades ago. At 20 to 30, your NAD+ levels are your baseline. By 40, tissue studies suggest you're down to about three quarters of that. By 50 you may be running on half, and by 70 on around a third of the NAD+ you had in your youth.
Imagine trying to run your whole household on half the electricity it needs. Some things get switched off. Everything else runs slower than it should.
Why NAD+ vanishes: the four thieves
The decline isn't random. Four mechanisms drive it, and they compound each other. The first is DNA repair. Every day your DNA takes thousands of hits from sunlight, normal metabolism and oxidative stress. PARP enzymes rush to repair the damage and burn through NAD+ doing it. As damage accumulates with age, more NAD+ goes to repair and less is left for energy. It's like having all your electricians fixing wiring instead of keeping the lights on.
The second is an enzyme called CD38, which rises with the low-grade inflammation that comes with age. CD38 consumes NAD+ quickly, and in animal and tissue studies it may be responsible for most of the age-related decline in some tissues. The third is mitochondrial efficiency. The power plants in every cell need more NAD+ to make the same energy, like an old car getting worse mileage, and tired mitochondria leak more free radicals, which cause more DNA damage, which burns more NAD+. The fourth, and the one most people overlook, is recycling. Your body has a salvage pathway that turns used NAD+ back into fresh NAD+. Its key enzyme, NAMPT, declines with age. It's like half the recycling plants shutting down while the rubbish keeps arriving.
The Revitacell approach: full-pathway support
This is where Revitacell parts ways with most NAD+ supplements. Rather than pouring more fuel into a system that's leaking, it supports the whole ecosystem NAD+ operates in. Raising NAD+ without addressing what depletes it is like filling a bucket with holes: you might see a lift, and then it drains away. Revitacell patches the holes while it fills the bucket.
The complete formula: what each component does
The foundation is NMN at 500mg per serve. NMN is the direct precursor to NAD+, one enzymatic step away from becoming active NAD+ in your cells. Nicotinamide riboside (NR) needs two conversions, so NMN skips a potential bottleneck. In the human trial we describe above, blood NAD+ rose significantly at every daily dose from 300mg, and 600mg gave the strongest result, so Revitacell's 500mg sits in the range that was actually tested in people.
Then comes the part most supplements ignore. When your cells use NAD+, they produce nicotinamide as a by-product. Nicotinamide has to be methylated to be cleared, and that uses up methyl groups. Revitacell includes trimethylglycine (TMG) at 250mg, which carries three methyl groups per molecule, alongside a complete active B complex: vitamin B6 as P-5-P, folate as 5-MTHF (the form that works even in people with the common MTHFR variant) and vitamin B12 as methylcobalamin. Together they support the methylation cycle so NAD+ recycling can keep running. We can thank our researchers and neuroscientist for that one.
Energy production is supported directly through the mitochondrial nutrients. Coenzyme Q10 as ubiquinol (50mg) is the spark plug in your mitochondrial engine, carrying electrons from used NAD+ to make ATP. Ubiquinol is the reduced form, and in human studies it raised blood CoQ10 more readily than standard ubiquinone, which matters more as we get older. Alpha-lipoic acid (100mg) is the "universal antioxidant", working in both the watery and fatty parts of the cell, regenerating vitamins C and E and supporting the enzymes that make energy. In aged animals it restored mitochondrial function in the lab. Vitamin C (250mg) protects cells from oxidative stress, supports collagen and helps regenerate the other antioxidants.
Pterostilbene (20mg) is a compound from blueberries, a close relative of resveratrol that is absorbed better and stays in the blood longer in animal studies. It supports SIRT1, the sirtuin that NAD+ fuels, so the fuel and the engine are looked after together. Hyaluronic acid (50mg) supports skin hydration and joint comfort, because feeling good isn't only about energy. Magnesium bisglycinate (50mg) is needed by more than 300 enzymes, including the ones that convert NMN to NAD+ and make ATP, and the bisglycinate form is gentle on the stomach. Benfotiamine (10mg), a fat-soluble form of vitamin B1, supports normal glucose metabolism in the brain and nerves.
The synergy: why the whole exceeds the sum
Each ingredient does its own job and makes the others work better. NMN raises NAD+; pterostilbene supports the sirtuins that use it. CoQ10 and alpha-lipoic acid support energy production while protecting the mitochondria from the extra oxidative stress that more energy creates. Vitamin C regenerates alpha-lipoic acid, which regenerates vitamin E and glutathione, a network that preserves the gains. And the methylation support stops the plateau many people describe with plain NMN, so benefits keep building over months rather than stalling after a few weeks.
What happens in your body, week by week
During weeks one and two the cells begin to wake up: NAD+ starts rising as NMN is converted, the mitochondria start working more efficiently, and the methylation pathways settle in. Many people notice small energy improvements or better sleep in this phase. Weeks three and four bring a metabolic shift as sirtuin activity picks up. This is when mental clarity often shows up, and the afternoon fog starts lifting. Weeks five to eight are about structural change: cells make new mitochondria to handle the improved output, and physical endurance builds noticeably. By weeks nine to twelve, tissue NAD+ has had time to settle throughout the body and the full picture arrives, which is why we say give it three months.
Real-world benefits: science meets life
For the cyclist who misses the hill routes, better mitochondrial function means more sustained effort. Think of Revitacell as a cellular assist, like an e-bike, giving you back some of the power to tackle the climbs under your own strength. For the gardener battling afternoon fatigue, steadier cellular energy means stamina that lasts the day. For the grandparent keeping up with energetic grandchildren, it means quicker recovery and staying mentally sharp through a long day of play.
More questions people ask
What about IV NAD+ therapy? Intravenous NAD+ gives an immediate lift, but it's expensive, invasive, time-consuming and short-lived. Revitacell builds NAD+ through your body's own pathways, at a fraction of the cost, and lets us include the supporting nutrients an IV can't.
Why NMN rather than NR? NMN is one step closer to NAD+ than NR, needing only one conversion. Recent research points to good bioavailability and muscle uptake, and the human trials showing walking-distance benefits used NMN. NMN is also stable and doesn't need the acidic formulation some find irritating in NR products.
What about niacin or nicotinamide? Both can raise NAD+, but niacin causes flushing many find intolerable, and nicotinamide at higher doses can dampen the sirtuins you're trying to support. NMN gives a cleaner lift.
Can I get NMN from food? Broccoli, avocado and edamame contain NMN in trace amounts. You'd need many kilograms a day to match one serve, and age-related enzyme decline limits how much NAD+ the body makes from food regardless.
What about the methylation concern with NMN? This is exactly why Revitacell includes TMG and active B vitamins. Most NMN products leave it out. The evidence that NMN meaningfully depletes methyl groups in people is still developing, so we'd rather include the support than assume it isn't needed.
The research foundation
Revitacell's formulation draws on a large body of peer-reviewed research. Well over a thousand scientific papers connect NAD+ decline with ageing, and NMN itself has now been through ten placebo-controlled human trials covering 437 people, where it was well tolerated. Each ingredient combination is based on published research, and the doses match the forms studied. The formula was developed with a neuroscientist from Cambridge University. This isn't a formula created by a boardroom trend analysis. It's built on how cells actually make and spend energy.
Your 60-day money-back guarantee
We stand behind Revitacell with a 60-day money-back guarantee because we're confident in the science and in what customers tell us. Try it for two full months. If you don't feel it's helping, contact our Canterbury team and we'll refund you. No complicated forms, no interrogation, no hassle. You have everything to gain.
