They Weren't Taking NMN.
They Were Eating Seaweed.
Okinawa. South Korea. Coastal Japan. Brown seaweed, every single day, for centuries. In 2017 researchers finally isolated the compound responsible: fucoidan.
Standardised to >95% fucoidan. Most "seaweed extract" on the market is under 20%. You are paying for the molecule, not the filler.
Wild-harvested North Atlantic. Fucus vesiculosus from cold, low-contaminant waters. Solvent-free water extraction.
UK-lab verified, every batch. Third-party tested for purity and heavy metals. Certificate of Analysis on request.
First month £30.00£22.50 with code NEWSUB25
Then £27/month — just 90p a day. One capsule daily, 30-day supply. Skip, pause or cancel anytime.
Fucoidan Research Published In
The Diet Came First.
The Science Followed.
The world's longest-lived populations were never taking supplements. They were eating brown seaweed — daily, as an ordinary part of the meal, for generation after generation.
Researchers spent decades asking what these populations had in common. Genetics didn't explain it. Climate didn't explain it. The diet kept pointing back to the same place — the seaweed.
In 2017, a research team finally isolated the compound responsible. A complex sulfated polysaccharide found in the cell walls of brown seaweed, most abundantly in Fucus vesiculosus.
Its name is fucoidan. It has since become one of the most rigorously studied marine molecules in human research.
"The tradition ran for six hundred years before anyone tested it. The diet came first. The science followed."
Then Someone Worked Out What It Was Doing.
A diet tradition is interesting. It isn't evidence. The obvious question is what fucoidan is actually doing inside a cell — and in 2017, a research team screening marine compounds found an answer nobody expected.
Fucoidan was identified as a direct activator of an enzyme called SIRT6. Not a precursor. Not a substrate that feeds it. A direct activator, acting on the enzyme itself — the first compound shown to do so.
The Protein That Repairs Your DNA.
SIRT6 is one of seven sirtuin proteins. It has a specific job: keeping your DNA intact. Every day, in every cell, it repairs breaks, protects the caps on your chromosomes, and silences disruptive genetic elements that would otherwise destabilise the genome.
Here is the part that matters. Published research consistently reports that SIRT6 activity declines with age. Not suddenly — steadily, across decades, long before anything is noticeable from the outside.
Peak. Maximum reported activity.
Declining. Measurably lower.
Reduced. A fraction of peak.
Centenarians Carry A More Active SIRT6.
When researchers looked at the genetics of people who reach one hundred, they found something specific. A notable proportion carry a naturally occurring variant of the SIRT6 gene producing a more active version of the protein — one that repairs DNA more efficiently than the common form.
Three Findings. One Obvious Question.
SIRT6 declines with age. Centenarians carry a more active version of it. Fucoidan was identified as a direct activator of it.
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So Why Not Just
Eat The Seaweed?
It is a fair question, and it has a straightforward answer. Raw brown seaweed contains fucoidan in small and highly variable amounts — the concentration shifts with species, season, water temperature and harvest location. Two handfuls from the same coastline can differ substantially.
The intakes used in published research are simply not reachable through diet in any practical way. Eating your way there would mean consuming seaweed in quantities no one outside a coastal food culture is realistically going to manage — and bringing everything else in the seaweed along with it.
The part most people miss
Seaweed is a natural accumulator. It draws in whatever is in the water around it — including iodine and heavy metals. That is exactly why sourcing water matters, why extraction method matters, and why third-party testing is not optional.
So we did what the research did. We isolated the molecule, standardised it to a known concentration, and had it verified independently — so that every capsule delivers the same 250mg, every single time.
>95% Standardised
Not "seaweed powder." A known concentration of the actual molecule, batch after batch.
Solvent-Free Extraction
Clean water process. No chemical solvent residues carried into the finished capsule.
Cold North Atlantic
Wild-harvested Fucus vesiculosus from low-contaminant northern waters.
Independently Tested
UK third-party lab verification for purity and heavy metals. COA on request.
What Our Customers Say
Not All Fucoidan
Is Created Equal.
"Seaweed extract" is not a regulated term. Two bottles on the same shelf can contain wildly different amounts of the actual molecule — and most labels will never tell you which is which. Here is exactly what separates ours.
| Specification | Typical Seaweed Extract | Prime Ageing Fucoidan |
|---|---|---|
| Active Fucoidan | Commonly under 20% | >95% Standardised |
| Species Declared | Often a generic "kelp blend" | Fucus vesiculosus |
| Source Waters | Frequently unstated | Wild-harvested, North Atlantic |
| Extraction Method | Chemical solvent common | Solvent-Free Water Extraction |
| Third-Party Testing | Rarely published | UK Lab Verified, Every Batch |
| Heavy Metals & Iodine | Seldom disclosed | Tested & Declared — COA On Request |
| Fillers & Binders | Bulking agents common | Zero. Vegetable Capsule Only. |
| Daily Protocol | Often 3–6 capsules | One Capsule. 250mg. |
| The Verdict | You cannot know what you bought | Verified |
Commonly under 20%
>95% Standardised
Rarely published
UK lab verified, every batch
Often a generic "kelp blend"
Fucus vesiculosus
Chemical solvent common
Solvent-free water extraction
Seldom disclosed
Tested & declared, COA on request
Bulking agents common
Zero. Vegetable capsule only.
Often 3–6 capsules
One capsule. 250mg.
You cannot know what you bought
Verified
"Typical seaweed extract" reflects commonly available unstandardised products where fucoidan content and testing data are not disclosed on the label. We publish ours. If you want to see the Certificate of Analysis for the batch you receive, ask us and we will send it.
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>95% Standardised
The same molecule the longest-lived populations on Earth ate every day — isolated, standardised, and independently verified. Wild-harvested Fucus vesiculosus from the cold North Atlantic, water-extracted without solvents, tested in a UK lab before it reaches you.
Specification
| Active Fucoidan Purity | >95% (UK Lab Verified) |
| Standardised Dose | 250mg Per Serving |
| Species | Fucus vesiculosus |
| Extraction Method | Solvent-Free Water Extract |
| Origin | Wild-Harvested, North Atlantic |
Stocking up saves you more. Three bottles works out at £20 each — £7 a bottle less than the monthly price after your first month.
Works out at 75p a day this month — then 90p a day.
For comparison: most NMN and NAD+ protocols in the UK run £40 to £80 a month.
Give it a full 30 days. If it isn't for you, return an unopened bottle for a 100% refund, or an opened one under our 50% Fair-Try refund. No forms, no friction — just email us.
So What Has The Research Actually Looked At?
A fair question, and one most supplement brands dodge. Fucoidan has been studied across three distinct areas. Here is what those researchers were investigating — described plainly, without us pretending the science says more than it does.
The Gut Barrier
This is the part most people miss. Fucoidan's sulfated structure resists stomach acid, so a meaningful portion reaches the lower intestine intact. Research here has focused on the intestinal lining itself — the mucus layer that separates gut bacteria from the gut wall — rather than on the bacteria a probiotic would target. Traditional use of bladderwrack for digestive and intestinal health long predates any of this work.
Inflammatory Pathways
A substantial share of published fucoidan research examines how the molecule interacts with signalling pathways involved in the inflammatory response — NF-κB among them. Much of this work is laboratory and animal research rather than human trials, which is exactly why we're telling you that rather than showing you a graph.
SIRT6 & Genomic Stability
SIRT6 is one of seven sirtuin proteins, and the one most closely associated with DNA repair and genomic maintenance. In 2017 a research team identified fucoidan as a direct activator of the SIRT6 enzyme. In 2025 a follow-up paper reported effects in living organisms rather than cell culture.
How To Take It
No loading phase. No cycling. No powder to choke down.
One Capsule
250mg standardised fucoidan. Taken with food, morning or evening — whichever you'll actually remember.
Every Day
Consistency is the whole point. Anchor it to something you already do and a missed day is no setback.
Alongside Your Stack
Sits comfortably with NMN, resveratrol, vitamin D or omega-3. No known interactions between them.
Common Questions
Straight answers. If yours isn't here, email us and a human will reply.
Speak to your GP or pharmacist first. Fucoidan is a sulfated polysaccharide with a structure related to heparin, and it has been studied for anticoagulant activity. If you are taking warfarin, apixaban, rivaroxaban, clopidogrel, aspirin or any other blood-thinning medication — or if you have a bleeding disorder or surgery scheduled — do not start without medical advice. We would rather lose the sale than have you take something that isn't right for you.
The most honest answer we can give you: 250mg of a compound that has been studied more seriously than almost anything else on the longevity shelf, at a purity most brands won't match and won't disclose. What we can promise precisely is what's in the capsule, where the seaweed was harvested, how it was extracted, and who tested it — all of which we'll show you in writing. What we won't do is promise you a specific outcome by a specific date, because the honest state of the evidence doesn't support that and anyone telling you otherwise is guessing. If that candour doesn't appeal, we're probably not the brand for you — and that's a reasonable conclusion to reach.
We won't give you a countdown, because we'd be inventing it. Fucoidan is not a stimulant and there's no credible "by day fourteen you'll feel X." Think of it the way the populations who inspired this product did — seaweed wasn't a fortnight's intervention in Okinawa or coastal Korea, it was something eaten daily across a lifetime. Most of our subscribers treat it as long-term cellular maintenance rather than a short-term fix. Our guarantee runs for 30 days precisely so you can decide for yourself whether it earns a place in your routine, with nothing at stake if it doesn't.
Seaweed naturally contains iodine, and our extract is no exception — we test and declare the iodine content of every batch, and the Certificate of Analysis is available on request. If you have hypothyroidism, hyperthyroidism, Hashimoto's, a history of thyroid nodules, or you take levothyroxine or carbimazole, please check with your doctor before starting and take the COA figure with you. The same applies if you are pregnant or breastfeeding.
Yes. Fucoidan is a distinct compound and there is no known reason it cannot sit alongside NMN, NR, resveratrol, vitamin D, magnesium or omega-3. Most of our customers take it in the morning with the rest of their routine. If you are on prescription medication of any kind, check with your pharmacist first — that advice applies to every supplement, not just ours.
You can, and coastal populations have done exactly that for centuries. The difficulty is consistency: fucoidan content in raw seaweed varies enormously by species, season and harvest location, and seaweed also accumulates iodine and heavy metals from the water around it. A standardised extract gives you the same 250mg, from a declared species, from tested waters, every single day — which is something a bag of dried kelp cannot.
Three things. Purity — ours is standardised to over 95% fucoidan, where a lot of "seaweed extract" on the market is well under 20% and does not declare the figure at all. Extraction — we use a solvent-free water process, so there is no chemical solvent residue carried into the capsule. Verification — every batch is tested by an independent UK lab, and we will send you the Certificate of Analysis for your batch if you ask for it. Most brands will not.
250mg of fucoidan extract standardised to over 95%, from wild-harvested Fucus vesiculosus, in a vegetable (HPMC) capsule. That is the complete list. No bulking agents, no flow agents, no magnesium stearate, no rice flour, no "proprietary blend." Suitable for vegans and vegetarians.
Your first month is 25% off, then 10% off for as long as you stay. A fresh 30-day supply ships automatically before you run out, with free UK delivery every time. You can skip a month, change the delivery date, or cancel entirely from your account in two clicks — no phone call, no retention script, no notice period. Cancel after one bottle if you want to.
Our 30-Day Fair-Try Guarantee: return an unopened bottle for a full refund, or an opened one for a 50% Fair-Try refund. Email us and we will sort it — no forms, no interrogation.
The Diet Came First.
The Science Followed.
>95% standardised fucoidan. Wild-harvested from the North Atlantic. Verified by a UK lab, batch after batch. One capsule a day.
Start My Protocol — 25% Off From 75p a day · Free UK delivery · Cancel anytime