★★★★★

1,200+ Verified Optimisers

Your NMN Is Missing Its Other Half.

Still taking NMN on its own?

A capsule split in two: NMN powder on one side, brown seaweed on the other

NMN provides the NAD+ fuel. Fucoidan is the SIRT6 activator that completes the protocol. One capsule a day, alongside the NMN you already take.

Half One · NMN The Fuel You've got this

Half Two · Fucoidan The SIRT6 Activator The missing piece

>95% Pure Fucoidan UK-Lab Verified Free UK Delivery

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Fucoidan Research Published & Reported In

Tap a logo to read the research.

The gap in most NMN protocols

Why NMN On Its Own Only Does Half The Job.

NMN tops up NAD+, the fuel. But fuel is only useful if the engine is running, and that is where SIRT6 comes in. Most protocols stop at the fuel. Fucoidan is the SIRT6 activator that completes the pair.

Half One · NMN The Fuel Tops up NAD+ You've got this

Half Two · Fucoidan The Engine SIRT6 activator The missing piece

The Result Complete Protocol Fuel and engine, working together

From 60p A day

You're already spending £40 to £80 a month on the fuel. Adding the engine costs from 60p a day: one capsule, taken alongside the NMN you already use.

Add The Other Half Free UK delivery · 30-day Fair-Try guarantee

Fuel vs Fuel + Engine

NMN On Its Own vs The Complete Protocol

Fucoidan doesn't replace your NMN. It adds the half your protocol is missing. Here's what changes when you take both.

Your protocol nowNMN on its own

RecommendedComplete protocolNMN + Fucoidan

The FuelNAD+ top-up

Covered

The EngineSIRT6 activation

Not covered

SIRT6 activator

Purity StandardWhat's in the capsule

Varies by brand

>95% fucoidan, UK-lab verified every batch

Daily RoutineWhat you actually do

Your NMN dose

Your NMN dose, plus one small capsule

Monthly CostTypical UK pricing

£40 to £80

Add from £18 a month

The Verdict

Half the job

Complete

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Customer Reviews

The Verdict From Serious Optimisers

5.0 average rating

NMN user · 2 years

★★★★★

The Missing Piece for my NAD+ Protocol

I've been on an NMN protocol for nearly two years, but I always felt like something was missing, I wasn't getting the energy levels I expected, adding Fucoidan was a real game changer!

David H. Manchester, UK · Verified customer

Sound familiar?

1

You started NMNThe fuel is covered.

2

Something still felt missingFuel on its own is only half the job.

3

Add the other halfOne capsule of Fucoidan alongside your NMN.

★★★★★

Finally, a SIRT6 Activator that Works

I've tried various brown seaweed extracts in the past, but most are just under-dosed or poor quality with fillers. You can tell this is different, the concentration is clearly high grade. It has become a non-negotiable part of my daily longevity stack.

James P. Hertfordshire, UK · Verified

★★★★★

Transparency I Can Trust

It's rare to find a brand that actually shows their working. I'm quite picky about what I put in my body, so seeing the 3rd party UK lab reports for every batch was the deciding factor for me. The solvent-free extraction makes me feel confident that I'm getting the purest form of Fucoidan available.

Sarah M. London, UK · Verified

★★★★★

No Fillers, Just Science

Most supplements are packed with junk you don't need. I love that this is just pure Fucus vesiculosus extract. It's simple, transparent, and backed by research. No marketing fluff, just results.

Mark B. Bedfordshire, UK · Verified

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Why Fucoidan

The Longest-Lived People On Earth Ate It Every Day.

In Okinawa, one of the world's original Blue Zones, brown seaweed has been a cornerstone of the diet for centuries. The same is true along the coasts of Japan and South Korea. These communities are renowned for some of the highest life expectancies on the planet.

Okinawa Coastal Japan South Korea

The molecule at the heart of brown seaweed is fucoidan, and it's the reason longevity researchers have been paying such close attention, including to its role as a SIRT6 activator.

The catch

You can't eat your way there. Raw seaweed alone can't reach the dose, and most "seaweed extracts" on the market contain under 20% fucoidan. So we isolated and standardised it.

Not all fucoidan is equal

How Much Fucoidan Is Actually In The Capsule?

Purity is the difference between taking fucoidan and taking seaweed powder. Here's how ours compares.

Typical "seaweed extract" <20%

Prime Ageing Premium Fucoidan >95%

>95%Standardised fucoidan purity

250mgStandardised dose per capsule

1Capsule a day, alongside your NMN

EveryBatch tested in a UK lab

No opacity. No fillers.

Four Standards Every Bottle Has To Meet

In a market full of hidden additives and vague labels, we show our working.

Traceable Origin

Wild-harvested Fucus vesiculosus from the cold, clean waters of the North Atlantic.

Clean-Water Extraction

Solvent-free water extraction preserves the precise molecular weight, with no harsh chemical residues.

UK-Lab Verified

Every batch independently tested in the UK for purity and heavy metals. COA available on request.

Zero Fillers

100% active fucoidan extract in a vegan HPMC capsule. No synthetic binders or additives.

Get The Purest Fucoidan From 60p a day · Your ad discount is applied automatically

Why SIRT6 matters

What The Research Links SIRT6 To

SIRT6 is one of the body's key longevity sirtuins, often called the "guardian of the genome". Fucoidan is a SIRT6 activator. Here's why researchers are so interested in it.

DNA Integrity & Genome Stability

Research links SIRT6 to maintaining the integrity of your DNA and the stability of the genome as you age.

A Healthy Inflammatory Response

SIRT6 helps regulate inflammatory signalling, and fucoidan's role in a balanced inflammatory response is widely studied.

Cellular Maintenance & Renewal

SIRT6 is involved in how cells maintain and renew themselves, and how well they cope with everyday stress.

Energy & Metabolic Balance

SIRT6 plays a role in regulating how cells use energy, which is why it pairs so naturally with NMN, the fuel.

What to expect

Your Protocol Timeline

Fucoidan isn't a stimulant. It works cumulatively, which is why the research runs over weeks, not days. Here's the journey when you add the other half.

Weeks 1 to 2

Switch On The Engine

Both halves of your protocol, covered.

One capsule each morning, alongside your NMN. No powders, no taste, five seconds a day.
Your daily SIRT6 activator is in place, so the fuel from your NMN finally has an engine to power.
The foundation phase: consistency is what counts, so keep the bottle next to your NMN.

The research

Lab research identified fucoidan from brown algae as a SIRT6 activator.

Rahnasto-Rilla et al., Marine Drugs, 2017

Weeks 3 to 6

Fuel Meets Engine

"Adding Fucoidan was a real game changer!" David H., NMN user

Daily fucoidan has been building for several weeks, the timeframe used in human studies.
Supporting a healthy inflammatory response, one of the most researched areas of fucoidan.
Helping your cells cope with everyday stress, alongside the energy your NMN provides.

The research

In older adults, 4 weeks of fucoidan was associated with stronger immune responses to the seasonal flu vaccine.

Negishi et al., Journal of Nutrition, 2013

Weeks 8 to 12+

Long-Term Resilience

"It has become a non-negotiable part of my daily longevity stack." James P.

You've reached the 12-week window that fucoidan studies use to measure results.
Ongoing support for DNA integrity and cellular maintenance, the heart of healthy ageing.
Fucoidan becomes part of your long-term routine, the way brown seaweed has been in Okinawa for centuries.

The research

A 12-week study found fucoidan intake improved grip strength in seniors, a widely used marker of healthy ageing.

Reported by NutraIngredients, December 2025

Give it the full 12 weeks. The 3-Month Protocol covers the whole timeline in one delivery, at £20 a bottle. No running out halfway.

Start My 3-Month Protocol

Research findings relate to the studies cited, which may have used different fucoidan sources and doses. Customer experiences are individual and results vary. Covered by our 30-day Fair-Try guarantee.

The Other Half Of Your NMN Protocol

Premium Fucoidan
>95% Standardised

30 Capsules Per Bottle · One Daily · Free UK Delivery

★★★★★ Rated 5 stars by our customers

One capsule a day, taken alongside the NMN you already use. Wild-harvested Fucus vesiculosus from the cold North Atlantic, water-extracted without solvents, and 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

ZERO FILLERS VEGAN (HPMC) COA ON REQUEST

Your discount is applied automatically at checkout. No code needed. Choose your supply below.

Choose your supply

For comparison: most NMN and NAD+ protocols in the UK run £40 to £80 a month.

Order before 2pm for same-day dispatch

Free UK Delivery

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30-Day Guarantee

🛡️ 30-Day Fair-Try Guarantee
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.

Prime Ageing Premium Fucoidan, >95% standardised, UK-lab verified

Before you order

Common Questions

Can I take it at the same time as my NMN?

Yes, that's exactly how it's designed to be taken. NMN is the fuel, fucoidan is the engine. Take one capsule in the morning with food, alongside your NMN.

Can I take it without NMN?

Yes. Fucoidan can be taken on its own. It's built to complete an NMN protocol, but you don't need to be taking NMN to use it.

Why can't I just eat seaweed or kelp?

To reach a 250mg dose of fucoidan through diet alone, you'd need to eat kilograms of seaweed every day. Our capsule gives you a >95% pure, lab-verified extract without the heavy metal risk that can come with raw seaweed.

How is Prime Ageing different from other fucoidan?

Most generic "seaweed extracts" contain under 20% fucoidan and are often made with chemical solvents. Ours uses a solvent-free water extraction to reach >95% purity, preserving the molecular weight that matters, and every batch is tested in a UK lab.

How long does one bottle last?

Each bottle holds 30 capsules, one a day, so a bottle lasts a month. The 3-Month Protocol covers 90 days and the 6-Month Protocol covers 180 days.

When will my order arrive?

We dispatch from the UK with free UK delivery, and most orders arrive within 1 to 3 working days. Bundles arrive together in one parcel.

How does the subscription work? Can I cancel?

Your first bottle is 25% off, then every bottle after that is 10% off, delivered every 30 days. You can skip, pause or cancel anytime from your account, with no fees and no minimum term.

What if it isn't for me?

Give it a full 30 days. If it isn't for you, our Fair-Try guarantee gives you a 100% refund on unopened bottles and a 50% refund on opened ones. No forms, just email us.

What's in the capsule?

250mg of standardised fucoidan from wild-harvested Fucus vesiculosus, in a vegan HPMC capsule. No fillers, no synthetic binders, no additives. A Certificate of Analysis is available on request.

Is it suitable if I have a thyroid condition?

Our extract is a natural source of organic iodine. If you have a thyroid condition, take any medication, or are pregnant or breastfeeding, please speak to your doctor before starting any new supplement.

Still have a question? Get in touch and a real person will reply.

Still taking NMN on its own?