Guide
NADH tested: the best products compared (2026)
Last updated: 27 July 2026
Written by
Health Tested Editorial Team
From their mid-30s, many people find their energy isn't as steady as it used to be. You tire more quickly, and daily life takes more out of you than it should.
One reason may lie in your body's natural NADH levels. NADH (nicotinamide adenine dinucleotide hydride) is the active, reduced form of NAD⁺.
It's found in almost all living cells and supports processes that matter for energy, metabolism and the function of healthy cells.¹
Your body's own levels fall markedly with age. Studies report levels up to 50% lower by the age of 60.²
You may notice this in your drive, your resilience, your concentration and your performance.
That's why NADH is attracting more and more attention. Many people are looking for specific ways to support their natural reserves so they feel more productive and balanced again from day to day.
In this article you'll find out what NADH really does and which product came out on top in our 2026 comparison.
There are countless NADH supplements on the market, but not all of them are effective.
The key to energy and healthy cells
NADH is far more than a source of energy. It's the active form of NAD⁺ and is directly involved in many important enzymatic processes. These include repair mechanisms in your cells, as well as detoxification and the regulation of metabolic processes.
NADH is particularly relevant to the function of sirtuins, proteins that may slow down ageing and support cell health.
Your body's own NADH levels fall markedly with age, which can have a negative effect on cell function and regeneration. Specific support for your NADH levels may therefore help to counteract age-related decline and increase your overall vitality.³
What is NADH?
NADH stands for nicotinamide adenine dinucleotide hydride. It's a molecule your body makes itself, found in all living cells. More than 500 enzymatic processes depend on it.⁴ It plays a central role in your health, especially in:
- energy production in the cells
- repairing damaged DNA
- regulating cell metabolism
- activating longevity enzymes such as sirtuins
Without NADH, your cells could not survive. Your body produces it itself, but this ability declines markedly with age. From the age of 30, NADH levels fall measurably, and in later life they can fall by as much as 50%, sometimes more.
Studies link this decline to lower energy, faster cell ageing, sleep problems and a weakened immune system.
When your body produces less energy, many other processes are affected: sleep quality, mental wellbeing, metabolism. Low NADH levels can be the reason for this lack of energy.
The different forms of NADH, simply explained
Your body contains several related forms of NADH, each with its own job. The most important are:⁵
NAD⁺ (oxidised form)
- This is the 'active' form of NAD.
- It's used directly in the mitochondria (the powerhouses of the cell) to produce energy.
- NAD⁺ is crucial for the body's repair mechanisms, especially when DNA is damaged.
- It activates sirtuins, enzymes that may slow down the ageing process.
NADH (reduced form)
- This form is created when NAD⁺ has taken up electrons.
- It's far more stable than NAD⁺ and can therefore be used directly by the body.
- NADH provides instantly available energy and supports metabolism and cellular performance.
- NADH can top up the body's NAD⁺ reserves, so you benefit indirectly from what NAD⁺ does.
NADP⁺ and NADPH
- These variants also contain a phosphate molecule.
- They're important for antioxidant processes, the production of fatty acids and protection against cell damage.
- Their functions are specialised and complement the effects of NAD⁺.
NMN (nicotinamide mononucleotide) and NR (nicotinamide riboside)
- These substances are precursors of NAD⁺ and can be taken as supplements.
- Your body converts them efficiently into NAD⁺.
- NMN in particular is being studied as a promising anti-ageing ingredient.
Why NADH is the better choice for supplements
In your body, NAD⁺ is the key form. It's involved in over 500 processes, from DNA repair and the activation of longevity enzymes to the regulation of metabolism. Without NAD⁺, your cells could not survive.
The problem is that NAD⁺ is extremely unstable and your body can't absorb it when it's taken as it is. It breaks down in the digestive tract and doesn't reach the cells in a usable form.
This is where NADH comes in. NADH is the stable, reduced form of NAD⁺ and can safely be taken as a supplement. In the body, NADH is used directly for energy production and converted into NAD⁺ at the same time. In this way, it supports the processes that depend on NAD⁺.
This means:
Your body needs NAD⁺, but it can absorb and use NADH much better.
When you take NADH, your body gets not only instantly available energy but also the building block it needs to raise its NAD⁺ levels.
In short: NADH is the most practical and effective form for supplements. It provides noticeable energy and at the same time helps you get all the benefits associated with healthy NAD⁺ levels.
How much NADH should you take a day?
There's currently no official recommended daily intake for NADH itself,⁶ because, like NAD⁺, it's a substance your body makes itself and isn't one of the classic vitamins or minerals.
According to studies, the optimal dose depends on your individual goal:
- Energy and focus: 20–50 mg
- Recovery and cell protection: 50–100 mg
- Physical performance: up to 150 mg
Some products also contain liposomal NADH, which can increase bioavailability significantly. With these, medium to high doses (50–100 mg) are enough to achieve a strong effect.
The key benefits of NADH
NADH is the reduced, active form of NAD⁺ and can be taken directly as a supplement. It supports your body's own NAD⁺ levels and with them a wide range of vital processes:
- hormone regulation and support for fertility
- support for muscle mass
- energy production
- reduced inflammation
- lower cholesterol and blood pressure
- better brain function
- blood sugar regulation
- weight regulation
- antioxidant protection
- protection against age-related diseases such as dementia
- support for the cardiovascular and nervous systems
- anti-ageing effects
With all the talk of creams, hyaluronic acid and collagen, one substance is often overlooked when it comes to healthy, fresh-looking skin: NADH. It not only protects cells but may also support their regeneration.
NADH and anti-ageing: supporting cell repair and longevity
One of the most fascinating aspects of NADH is its influence on cell health. NADH is essential for activating enzymes called sirtuins, which are considered 'protective factors' against the ageing process. Sirtuins regulate cell repair mechanisms, protect DNA from damage and support the breakdown of cellular waste.⁸
As NADH and NAD⁺ levels fall with age, these repair processes become less efficient too. You feel drained and less resilient, and your body no longer responds the way it used to.
Raising your NADH levels can slow this process down.Scientific research suggests that specific support for NAD⁺ can have positive effects on cell health, the immune system and overall vitality.
NADH has therefore become an important focus of anti-ageing research aimed at influencing biological age.
More energy for body and mind
NADH plays a key part in how your body obtains and uses energy. As a coenzyme, its oxidised form NAD⁺ plays a central role in the redox reactions in your cells, helping to convert the energy from food (fats, carbohydrates, proteins) into the form your cells can actually use: ATP.⁷
As NADH levels fall, energy production often declines too. This can lead to tiredness, reduced performance and concentration problems. Getting enough NADH may therefore help to reduce these symptoms and maintain cellular energy.
Studies show that supporting NADH levels, whether with supplements or with specific lifestyle changes (such as enough exercise and a healthy diet), can improve physical and mental performance. So NADH doesn't just support your energy from day to day. It may also help to counteract exhaustion and poor concentration.
Signs of NADH deficiency
Because NADH is involved in so many body functions, a deficiency can show up in many ways. Bear in mind that the same symptoms can also be caused by other deficiencies or by illness:
- persistent tiredness
- concentration problems and mental exhaustion
- reduced muscle strength
- lower endurance
- greater susceptibility to inflammation
- impaired wound healing
- loss of skin elasticity and early signs of ageing
- memory problems
- metabolic disorders, such as insulin resistance or raised blood sugar
There are several factors to consider when choosing the right supplement.
What to avoid when buying an NADH supplement
If you decide to take a supplement, watch out for the following:
- low bioavailability
- products with too low a dose
- capsules containing gelatine
- fillers and anti-caking agents
- allergens (lactose, gluten, soya)
- unnecessary additives
- sugar, alcohol or flavourings
- inflated prices
Forms: how can you take NADH?
NADH supplements come in many different forms, including capsules, tablets, liquids, powders and granules. Many of them, however, contain additives such as fillers, flavourings, colourings or sugar.
That's why we focus on the forms that have proved their worth in practice.
The most common forms are:
- capsules/tablets
- powder
- drops/liquid extracts
- liposomal formulations (capsules or liquids)
Capsules
Pros
Easy to take: just swallow
Convenient on the go and when travelling
Easy to dose (each capsule contains the same amount)
No unpleasant taste or smell
Can be combined with other active ingredients
Cons
Stomach acid can affect absorption of the active ingredient
Digestion can partly break down the active ingredient
Bioavailability of the active ingredient can vary
Capsule shell may contain gelatine
Often contain additives
Unsuitable for people who have difficulty swallowing
Low-dose products may mean taking several capsules
Drops
Pros
Easy to dose
Fast absorption of the active ingredient (through the mucous membranes)
Well suited to people with swallowing difficulties or stomach problems
Versatile: can be mixed into drinks or food
Cons
The drops may taste unpleasant
Exact dosing can be difficult, as the number of drops varies
The liquid can drip or spill
Short shelf life
Liposomal form
Pros
Higher bioavailability of the active ingredient
Better absorption by bypassing stomach acid
Lower dose needed for the same effect (usually just 1 capsule)
Can mask the taste of the active ingredient
No additives
Cons
May cost more because of the more complex manufacturing process
May be harder to find
Making liposomes can be difficult and requires specialist technology
Smaller choice, as not all manufacturers use the process
Liposomal NADH: developed for better absorption
Many conventional NADH products share a fundamental problem: the molecule is sensitive and is easily broken down in the digestive tract. As a result, only part of the NADH they contain actually reaches the cells.
Liposomal products tackle exactly this problem. The NADH is embedded in tiny fat droplets called liposomes.
This coating protects the sensitive substance from being broken down by stomach acid and digestive enzymes.At the same time, your body can absorb liposomes particularly easily, because their structure resembles that of the cell membrane.
The result: your body absorbs and uses liposomal NADH much more efficiently. This means lower doses may be enough to support your energy metabolism.
Gentle on the stomach and gut
Liposomal supplements are not only more effective but also particularly well tolerated. Liposomes stop the nutrients from coming into direct contact with the sensitive stomach lining, so they irritate the digestive tract less. This lowers the risk of side effects such as an upset stomach.
These properties make liposomal supplements ideal if you have a sensitive stomach or react badly to conventional supplements.
Simplified model of a liposome. A liposome is like a tiny bubble with a layer of fat on the outside and a watery chamber on the inside. This structure makes liposomes particularly effective, as they can transport and release active ingredients selectively. Thanks to this innovative technology, liposomes have become increasingly important in medicine and cosmetics. They allow active ingredients to be absorbed effectively, protect them from breaking down and have a wide range of uses.
Top 3: the best NADH products of 2026
There are countless NADH products on the market today. We've assessed them against the following criteria to find the best:
How is the supplement formulated?
Are there any study or research results?
How high is the dose of each nutrient?
Does it contain any allergens?
How good is the value for money?
Is there anything special about the formulation or manufacturing?
What to look for when choosing an NADH product
When you buy an NADH supplement, it's worth checking the following points to make sure it's both safe and effective:
1. Absorption and bioavailability
- Conventional NADH is often only partly absorbed in the digestive tract.
- Liposomal formulations or gastro-resistant capsules improve stability and increase bioavailability significantly.
2. Quality and manufacturer
- Look for quality-tested products with stabilised, pure raw materials and ideally packaging that protects against oxidation.
- Supplements made in Europe, or with ingredients shown to be quality-controlled, are generally a safer choice.
product review
TESTED
our quality criteria
MELINAVA Liposomal NADH
by MELINAVA
Pros
- 1 capsule a day
- High-strength: 100 mg of NADH per daily dose
- Maximum bioavailability thanks to liposome technology (up to 64 times better absorbed)
- Longer-lasting effect
- Better tolerated
- Supports the cells' natural energy production
- Free from soya, gluten and lactose
- Gelatine-free capsule
- No additives
- Made in Europe (France)
- Comes in a high-quality glass bottle you can reuse at home, for example for spices
Cons
- Only available online
- Often sold out
- Only available as capsules
Verdict
Melinava Liposomal NADH achieved the highest overall score and therefore came out on top in our test.
The Melinava capsules contain 100 mg of NADH in a highly effective liposomal form. This is the optimal daily dose for an adult.
The liposomal coating increases bioavailability significantly. This means lower doses are needed to achieve the same effect.
Users report more energy, better concentration and improved performance, especially when daily life is stressful or demanding. Many also say that after taking it regularly they feel less tired and more balanced.
MELINAVA puts purity and quality first: the supplement is free from gluten, lactose, soya and unnecessary additives. Made in Europe and delivered in a reusable glass bottle, it combines maximum effectiveness with sustainability.
Customers have also praised Melinava Liposomal NADH for its simple dosage of one capsule a day.
One pack contains 30 capsules.
Melinava takes first place in our test (as of October 2025). The manufacturer takes the product's tolerability very seriously, which is why the supplement is completely free from unwanted additives.
You can find more information on the manufacturer's website. A one-month course of Melinava costs 509 kr (discounts are available when you buy 2 or 3 packs, as of October 2025).
Vanosan NAD
by VANOSAN
Pros
- 300 mg nicotinamide riboside
- With added grape seed extract and organic piperine
- Soya-free and gluten-free
- Vegan
- Laboratory-tested
- Made in Germany
Cons
- Only available online
- No enhanced bioavailability
Verdict
Vanosan NAD contains nicotinamide riboside as a precursor of NADH, together with vitamin B3 (niacin) and supporting ingredients such as grape seed extract and organic piperine for better absorption.
At 300 mg of nicotinamide riboside a day, the dose is sensible.
The capsule form is practical, but absorption may be limited compared with liposomal forms.
Some people with sensitive stomachs also say they find the two-capsule daily dose 'noticeable'.
The product is made in Europe and delivered within 1 to 3 working days.
The recommended dose is two capsules a day.
One pack contains 60 capsules.
MoleQlar NAD Booster
by MOLEQLAR
Pros
- Combined with other active ingredients such as L-tryptophan
- Certified and tested
- Vegan
- Only two capsules a day
- Made in Germany
Cons
- Poor value for money
- Some customers doubt its effectiveness
- Only available online
- Contains only niacin as a precursor of NAD⁺
- Unclear dose per capsule
Verdict
The NAD Booster from MoleQlar contains nicotinamide riboside, a precursor of NADH that is meant to support cell metabolism and energy production in the body. The formula is based on scientifically relevant ingredients, contains no unnecessary additives and is made in Germany.
However, the exact dose of the active ingredient per capsule is unclear, which makes it hard to judge how effective it is. There are also no independent laboratory analyses, which many health-conscious users will see as a drawback.
Customer reviews are mixed: while some users report more energy, better focus and restful sleep, others notice no effect at all, despite taking it regularly. Some customers also criticise the relatively high price for an uncertain effect.
The recommended dose is two capsules a day.
One pack contains 60 capsules.
Healthy NADH levels are important so that your metabolism runs smoothly and your body can turn food into energy.
Metabolism: NADH as natural energy support
Your body makes NAD⁺ itself and can't run its cell metabolism without it, but it's NADH that you can take directly as a supplement. In the body, it's quickly converted back into NAD⁺ to support energy production.
As you get older, NAD⁺ levels fall, which can lead to tiredness, lethargy and declining performance. Taking NADH can effectively top up your natural NAD⁺ levels and improve the energy supply to your cells again.
Longevity: NADH for healthy cells
NADH isn't only important for energy production. It also activates enzymes such as sirtuins, which are responsible for DNA repair, cell protection and healthy ageing. Sufficient NADH levels may help to reduce oxidative stress and support cell regeneration. Studies show that stable NADH levels are associated with healthier ageing and more vitality from within.
Brain: think more clearly with NADH
Your brain is one of the organs with the highest energy needs in the body. NADH plays a central role here, because it's involved in cellular energy production. Sufficient NAD⁺ and NADH levels ensure that nerve cells work optimally, which shows up as better concentration, faster reactions and greater mental performance. Especially during periods of stress or heavy mental strain, and in later life when levels fall naturally, the right support may help to reduce mental fatigue and maintain cognitive performance. In this way, NADH helps to keep your mind clear and focused, even in demanding situations.
Your brain works around the clock, without a break. As an energy producer, NADH is therefore also crucial for cognitive performance.
Our verdict: NADH, the key substance
NADH is indispensable for many key processes in the body, from energy production to cell repair. With age or under heavy strain, your natural NADH levels fall, which can lead to a decline in physical and mental performance.
A dedicated NADH supplement may help to support energy, concentration and cell health effectively. Studies show that greater NADH availability improves cell function and counteracts age-related decline. If you're looking for more vitality and better performance, NADH is a strong, natural way to support your wellbeing and an active lifestyle.
See the NADH products we tested* We may earn a commission from some of the companies featured. This is how we keep our comparisons free to read.
Some of these companies are our commercial partners.
Sources
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