
Akkermansia muciniphila chewable
This chewable probiotic brings together live bacterial strains and complementary ingredients to support the gut microbiome from several angles at once.

£45.00
Tru Niagen is a nicotinamide riboside (NR) supplement designed to support NAD+ levels in the body.
Longevity SupplementsTru Niagen NAD+ 300mg
This chewable probiotic brings together live bacterial strains and complementary ingredients to support the gut microbiome from several angles at once.

Vitamin D3 + K2 Liquid Drops deliver two fat-soluble nutrients that are commonly considered together: D3 as cholecalciferol — the form most readily converted a…
Interested in more
personalised recommendations?
Set up your Wellness A\ Profile to connect your wearables, biomarkers and test results. Create a bespoke plan based on your unique biology. Expert-led, evidence-based.
Set up Profile nowTru Niagen is a nicotinamide riboside (NR) supplement designed to support NAD+ levels in the body. NAD+ — nicotinamide adenine dinucleotide — is a coenzyme found in every cell, where it plays a central role in energy metabolism and DNA repair. Levels decline naturally with age, and that decline is studied in the context of fatigue, cognitive sluggishness, and reduced cellular resilience. Nicotinamide riboside is one of the best-researched NAD+ precursors available; unlike direct NAD+ supplementation, NR is efficiently absorbed and converted into NAD+ within cells.
This supplement suits those in their late thirties and beyond who want to address age-related NAD+ decline, as well as individuals managing high physical or cognitive loads who feel their recovery and energy are no longer what they were. It fits neatly into a morning routine alongside other foundational supplements.
Tru Niagen is the branded NR ingredient with a notable body of human clinical research behind it — a meaningful distinction in a category where many products rely on preclinical data alone. If you are considering an NAD+ precursor and want a formulation backed by peer-reviewed human trials, this is a considered starting point. As with any supplement affecting cellular metabolism, those on medications or with existing health conditions should speak to a clinician before starting.
NAD+ booster for cellular health
Follow the dosage on the packaging. Tru Niagen is typically taken once daily, and most people find it easiest to take in the morning with or without food. Check the label for the specific serving size recommended by the manufacturer.
Nicotinamide riboside (NR) is a form of vitamin B3 that the body converts into NAD+ intracellularly. Taking NAD+ directly is not an efficient route — the molecule does not cross cell membranes readily. NR is absorbed and then synthesised into NAD+ inside the cell, which is why it is the preferred delivery form in most clinical research.
Human studies on NR typically measure NAD+ blood levels after two to four weeks of consistent use. Subjective changes — in energy or recovery — may take longer and are not guaranteed. NAD+ precursors are better thought of as foundational support than as fast-acting interventions.
NR is generally well tolerated, but if you are taking any prescription medications — particularly those affecting metabolism or cancer treatment — speak to your GP or a clinician before starting. This is standard advice for any supplement that influences cellular biochemistry.
It is most relevant for adults in their late thirties and older who are interested in addressing age-related NAD+ decline, as well as those experiencing persistent fatigue or reduced recovery that blood tests have not attributed to a specific deficiency. It is not a substitute for investigating underlying causes with a clinician.
The 300mg refers to the dose of nicotinamide riboside (NR), the precursor — not to NAD+ itself. Check the product packaging for the full supplement facts panel and any additional ingredients included in the formulation.
We offer physician-led talks and events to help you learn more about how to deal with stress through movement, mindfulness, and refocusing.
Learn about our next event
Overall sentiment
4 days ago
Gentle on a sensitive stomach, and I feel like myself again. I had tried two other glandulars before this and neither sat right.
1 week ago
I was sceptical about glandulars, but my mid-afternoon crash has genuinely eased. One capsule with breakfast and I forget about it.
2 weeks ago
Not a stimulant, which is exactly what I wanted. It took about ten days, then I realised I wasn’t dreading the afternoon any more.
3 weeks ago
Bought after a blood panel flagged a flat cortisol curve. Easy to take, no jitters, and the sourcing is refreshingly transparent.
1 month ago
Training hard through a stressful stretch and this has helped me bounce back between sessions. Already on my second bottle.
1 month ago
No frills, one ingredient, a sensible dose. I appreciate that it is designed to be used for a season rather than forever.
A blood test is the only way to know what your body actually needs. We’ll tell you which of these supplements is right for you.
Find your panel
A curated selection of products, tools and rituals, carefully chosen by our expert doctors, to benefit you on your wellness journey.
Loading the catalogue…