
Vitamin D3 + K2 liquid drops
Vitamin D3 + K2 Liquid Drops deliver two fat-soluble nutrients that are commonly considered together: D3 as cholecalciferol — the form most readily converted a…

£45.00
Tru Niagen is a nicotinamide riboside (NR) supplement from ChromaDex, the company that holds the foundational patents on NR as a distinct form of vitamin B3.
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ChromadexTru Niagen - 300 mg
Vitamin D3 + K2 Liquid Drops deliver two fat-soluble nutrients that are commonly considered together: D3 as cholecalciferol — the form most readily converted a…

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Tru Niagen is a nicotinamide riboside (NR) supplement from ChromaDex, the company that holds the foundational patents on NR as a distinct form of vitamin B3. NR is a precursor to NAD+, a coenzyme involved in cellular energy metabolism, DNA repair, and the activity of sirtuins — proteins studied for their role in healthy ageing. NAD+ levels decline naturally with age, and supplementing with a precursor such as NR is one of the more researched strategies for supporting those levels.
This formulation delivers 300 mg of nicotinamide riboside per capsule. It suits people who want to address age-related cellular decline, those in demanding physical or cognitive routines, and anyone whose clinician has flagged NAD+ support as relevant to their health picture. It is not a quick-fix; consistent daily use over weeks is how most people approach it.
ChromaDex uses a patented form of NR called Niagen, which has been the subject of peer-reviewed human studies examining its ability to raise blood NAD+ levels. The ingredient has a more substantial evidence base than many NAD+ precursors on the market, which is a meaningful distinction in a category full of loosely substantiated products. For those serious about cellular health and longevity science, this is one of the more credible starting points.
Nicotinamide Riboside 300mg

Take one capsule daily. It may be taken with or without food. Consistency matters more than timing — pick a time of day you can stick to and maintain it for several weeks before assessing any effect.
Nicotinamide riboside (NR) is a form of vitamin B3, as is niacin. The key difference is the pathway each takes to raise NAD+ levels. NR converts to NAD+ via a distinct enzymatic route and, unlike high-dose niacin, is not associated with the skin flushing that many people find uncomfortable.
NAD+ precursors tend to work gradually at the cellular level rather than producing noticeable day-one effects. Most human studies run for several weeks. It is reasonable to commit to daily use for four to eight weeks before drawing conclusions, and some people track progress alongside a blood panel.
NR is generally well tolerated, but if you are on any prescription medication — particularly those affecting liver metabolism — it is worth checking with your GP or clinician before adding it. As with any supplement, do not exceed the recommended dose without professional guidance.
Check the packaging for full excipient and capsule details, as we cannot confirm the shell composition from the information available here.
Some individuals take higher amounts under clinical guidance, but the established daily dose for this product is one capsule. Do not adjust the dose without speaking to a clinician — more is not automatically better, and the evidence base is built around studied amounts.
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Overall Sentiment
4 months ago
Been on this about three months now, one capsule in the morning with breakfast. Hard to attribute anything specific to a single supplement but my afternoon slumps have noticeably eased. I stack it with a B-complex and CoQ10. Won't pretend it's a miracle, but it's stayed in my routine for good reason.
4 months ago
Switched to this from a cheaper NR brand after reading up on the research. The patent situation and the human studies were what clinched it for me. It's pricier but I'd rather have something that's been properly studied.
5 months ago
I do think it's doing something — better mental clarity in the mornings than I had a few months back — but at £40.99 for a single month's supply it's a stretch. I wish they did a 60-count bottle at a proportionally lower per-capsule cost. Will keep buying for now but it's the value-for-money that holds back a fifth star.
5 months ago
My GP mentioned NAD+ support after some routine bloodwork flagged a few things. She recommended this specifically. Six weeks in and feeling more even-keeled energy-wise. Happy to continue.
5 months ago
Take this alongside resveratrol and a good omega-3. I'm in my late fifties and started thinking more seriously about cellular health last year. I can't point to one dramatic change but overall I feel like I'm doing right by my future self. The research behind this particular form of NR is more reassuring than the cheaper alternatives.
6 months ago
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