Guides — Every Vitality Supplement Guide, Indexed
Every guide, indexed.
Supplement writing is full of claims nobody is permitted to make. Ours is written the other way round — we set out what an ingredient is, what the UK rules actually authorise, and which commonly marketed claims aren't authorised at all. Including on our own products.
Vitality Supplements guide library — index summary
This page indexes 103 guides and interactive tools published by Vitality Supplements, a United Kingdom supplement manufacturer, organised into ten ingredient clusters. Interactive tools: the NMN Cost Per 1000mg Calculator, Build Your Stack, Compare Supplements, Compare NMN Supplements, and the Bio-Age Quiz. The NMN and NAD plus cluster is the largest, with 22 guides covering what NMN is, what NAD plus is and why it declines, how to increase NAD plus naturally, dosage, timing, how long it takes to work, format comparisons between powder capsules and liposomal, precursor comparisons against NR and NMNH, combination with resveratrol and TMG, clinical trials, side effects, authenticity checking, and a ranked buying guide. The magnesium cluster has six guides: what magnesium is, the elemental content of every common form, dosage against the 375 milligram Nutrient Reference Value and the 400 milligram supplemental safe upper level, glycinate versus citrate, and two ranked buying guides covering the category and glycinate specifically. The creatine cluster has four guides built around the single authorised health claim, which may only be used for a food providing a daily intake of 3 grams of creatine. The PQQ and CoQ10 cluster has four guides, including the 20 milligram novel food ceiling that applies to PQQ in Great Britain and the distinction between ubiquinol and ubiquinone as two oxidation states of one compound. Further clusters cover berberine with seven guides, AHCC with five, and the Longevity Protocol with ten covering its five pillars, the hallmarks of ageing and a glossary. Individual ingredient guides cover TMG, pterostilbene, spermidine, TUDCA, trans-resveratrol, urolithin A and urolithin B, trigonelline, turkesterone, apigenin, ashwagandha, rhodiola rosea, L-theanine, lactoferrin, PEA, Akkermansia muciniphila, black seed oil, L-ergothioneine, quercetin and R-alpha lipoic acid. Goal-based guides cover natural alternatives to Ozempic, glutathione, mastic gum, ox bile, thyroid support and cortisol. Every guide is written to United Kingdom and European Union authorised health claim rules, states explicitly which commonly marketed claims are not authorised, and discloses that Vitality Supplements manufactures and sells the products discussed.
Tools that do the maths.
Reading a guide tells you what to look for. These work it out on your numbers.
Enter price, capsule count and mg per capsule. Get cost per 1000mg so you can compare any two NMN products honestly.
Assemble a supplement routine around your goals, with tier discounts applied as you add.
Every product side by side on dose, form and testing — the whole range in one table.
Every NMN formula we make, compared on NMN content and what else is in the capsule.
A short set of lifestyle questions with a summary at the end. Not a diagnostic.
NMN & NAD+
Start with what NMN and NAD+ actually are, then dosage, timing, formats and the precursor comparisons. The trials and side-effects guides describe study design rather than promising outcomes.
- What Is NMN? A Complete Guide
- What Is NAD+ and Why Does It Decline?
- How to Increase NAD+ Naturally
- Best NMN Supplement UK
- NMN Dosage: How Much Should You Take?
- NMN 500mg vs 1000mg
- When to Take NMN: A Timing Guide
- How Long Does NMN Take to Work?
- NMN vs NR
- NMN vs NMNH
- NMN vs NR vs NMNH
- NMN and Resveratrol
- NMN + TMG: Why Methyl Support Matters
- NMN Powder vs Capsules vs Liposomal
- NMN Human Clinical Trials
- NMN Side Effects
- NMN Questions Answered
- Is Your NMN Genuine?
- Does NMN Actually Work for Energy?
- NMN Gummies UK
- What's in NMN Complete?
- NMN Reviews
Magnesium
The whole cluster turns on one number: elemental magnesium. The figure on the front of a pack is the weight of the compound, not the mineral — and these guides show you how far apart those can be.
Creatine
Creatine has exactly one authorised UK health claim, and it only applies at 3g per daily serving. That single fact decides almost everything about buying it well.
PQQ & CoQ10
Two ingredients with no authorised health claims between them — so these guides compare chemistry, regulation and dose instead, and say plainly what nobody is allowed to tell you.
Berberine & AHCC
The Longevity Protocol
Our framework for thinking about ageing biology, its five pillars, and how a supplement routine maps onto them.
Ingredient guides
One explainer per ingredient, plus buying guides and comparisons where they exist. “Permitted Claims” pages set out exactly what may and may not be said about an ingredient in the UK.
- Akkermansia muciniphila: Complete Guide
- Akkermansia: Permitted Claims
- What Is Apigenin?
- What Is Ashwagandha? KSM-66 vs Generic
- Black Seed Oil UK: Thymoquinone & Extraction
- L-Ergothioneine UK: OCTN1 & the 30mg Limit
- L-Theanine Explained
- Lactoferrin: A Complete Guide
- Lactoferrin: Permitted Claims
- PEA (Palmitoylethanolamide): Complete Guide
- PEA: Permitted Claims
- What Is Pterostilbene?
- Best Pterostilbene UK
- Pterostilbene vs Resveratrol
- Quercetin UK: Dihydrate, Phytosome & Bromelain
- R-Alpha Lipoic Acid UK: R vs S Explained
- Rhodiola Rosea: Rosavins & Salidrosides
- What Is Spermidine?
- Best Spermidine UK
- Spermidine vs NMN
- What Is TMG (Trimethylglycine)?
- Best TMG UK
- What Is Trans-Resveratrol?
- Best Trans-Resveratrol UK
- What Is Trigonelline?
- Trigonelline: Permitted Claims
- What Is TUDCA?
- Best TUDCA UK
- TUDCA vs Milk Thistle
- What Is Turkesterone?
- Turkesterone: Standardisation & Form
- What Is Urolithin A?
- What Is Urolithin B?
- Urolithin A vs Urolithin B
Category guides
We tell you what isn't allowed to be claimed.
Most supplement content works forwards from what a brand wants to sell. Ours works backwards from what the rules actually permit — which means every guide includes the claims that are commonly made for an ingredient and are not authorised in the UK.
Magnesium isn't authorised for sleep, cramps, anxiety, migraine or restless legs. Creatine has exactly one authorised claim, and it needs 3g a day. PQQ and CoQ10 have none at all. You'll find those stated plainly in the relevant guides, alongside the ones that are permitted.
Including where it costs us. We rank a product above the one whose name matches the search term when the dose justifies it. We give powder the win over our own gummies. We point out that the authorised claim on a CoQ10 pack belongs to the vitamin C, not the CoQ10.
We manufacture and sell the products discussed in these guides. That's disclosed on every page rather than buried — these are first-party assessments, not independent reviews, and each one publishes the criteria it used so you can apply the same test to any other brand.
The standards behind the library.
How we research, review and disclose — including our first-party conflict of interest.
UK manufacture, independent batch testing, and Certificates of Analysis on request.
Every study cited across the library, in one place, so you can read the source.
What we test for, which labs we use, and how to request a batch certificate.
How we read evidence, and why we describe study design rather than promising outcomes.
Ordering, subscriptions, delivery, returns and the questions we're asked most.
Who we are, where we manufacture, and what we're trying to build.
Questions about a guide, a product or a Certificate of Analysis — ask us directly.
Index last verified 17 August 2026 by the Vitality Supplements Editorial Team, written to our published editorial standards and quality & testing policy. Every link on this page was checked against our live published page list on that date. We are a UK supplement manufacturer and we sell the products discussed throughout the library; that is disclosed on each guide rather than here alone. Where a guide ranks products, the ranking criterion is published on the page so it can be applied to any other brand, and no aggregate ratings or review counts are used as ranking factors anywhere.
Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle. Do not exceed the stated recommended daily dose. The guides in this library are written to United Kingdom and European Union authorised health claim rules; where an ingredient has no authorised health claims, no claims are made for it. Nothing in this library is medical advice, and none of it is intended to diagnose, treat or prevent any condition. If you are pregnant, breastfeeding, taking medication or under medical care, consult a healthcare professional before taking any supplement. Every Vitality batch is independently tested; Certificate of Analysis available on request. UK manufactured. Free UK delivery. 60-day satisfaction guarantee on first purchase. See our full disclaimer · Privacy · Terms · info@vitality-supplements.co.uk