4.9/5 323 VERIFIED REVIEWS

Doing everything right. Deep sleep still stuck.

After 40, your body produces less of the compound that makes deep sleep possible.

Most people aren't sleeping badly because of stress or screens. It's a cellular shift, and Primeadine® was built to address it.

Sleep is when cellular repair peaks, spermidine supports that process.

Whole-food spermidine, not synthetic.

Third-party tested in Japan and the US.

AS SEEN IN

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MOST SLEEP SOLUTIONS MISS THE POINT

They target the symptom.

Spermidine works on the reason.

Poor sleep isn't just tiredness. It's a sign your cells aren't repairing the way they used to. During sleep, your body runs its most important renewal processes, and spermidine is the compound that drives them. The less of it you produce, the lighter and less restorative your sleep becomes.

SLEEP

Cellular repair peaks at night. Poor sleep means incomplete cellular repair. The restorative rest you used to count on becomes harder to reach.

ENERGY

Poor sleep means your cells start the next day already behind. Energy dips that follow don't fully recover.

What our customers say

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THE SCIENCE

Meet spermidine.

Your cells already know it.

Spermidine is a naturally occurring compound found in every cell in the body. It plays an important role in autophagy, the body’s natural process for clearing and renewing cellular components.

As spermidine levels decline with age, the body’s ability to support this cellular renewal process may also become less efficient.

INTRODUCING PRIMEADINE

Wholefood spermidine

Built around this science

Most spermidine supplements are synthetic. Primeadine® uses food-derived spermidine concentrated from whole wheat germ sourced in Japan — in the form your body was designed to recognise.

Whole-food. Food-derived.

Concentrated from whole wheat germ: not synthetic, not isolated. The form your body was designed to recognise.

Sourced and manufactured in Japan

From a JHFA-certified facility, to Japan's highest food-safety standards.

Independently tested: twice

Every batch tested in Japan and the USA for heavy metals, pesticides, mycotoxins, and potency.

Guided by Oxford science

Developed with guidance from scientists at the University of Oxford, ensuring every decision is informed by rigorous academic research.

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Rated 4.9/5 from 323 Reviews

Primeadine® Original Whole-Food Spermidine Supplement

Primeadine® Original is a premium, whole-food spermidine supplement made from concentrated, defatted wheat germ, carefully sourced in Japan.

It is designed to support the body’s natural cellular maintenance processes, which play an important role in how we age, feel, and function over time.

Support sleep quality.

Maintain energy & vitality.

Support healthy aging.

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*We recommend 3-6 months of consistent use for best results

FAQ

Questions? We got you covered.

What is spermidine?

What are the benefits of spermidine?

What's the difference between food-derived and synthetic spermidine?

What is the best spermidine dose to take?

What makes Primeadine® superior to other spermidine supplements?

How long does it take to notice results?

Recommended by trusted health professionals

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The Primeadine difference

Spermidine supplements aren't all made the same. Here's how Primeadine compares.

SOURCE

TESTING

POLYAMINE MATRIX

SCIENCE

DOSAGE

CLINICAL FORM

PRIMEADINE

100% natural whole-food from Japan

Every batch 3rd party tested in both US and Japan.

Full: spermidine, spermine and putrescine, as in nature.

Oxford advisory board guides every formulation.

1mg, aligned with published research.

Mirrors the whole-food spermidine used in leading human clinical studies.

Other Brands

Synthetic or synthetically enriched; typically China.

Often opaque, no certification publicly available.

Spermidine alone, without key supporting compounds.

Ingredient lists driven by trends, not evidence.

Often high-dose at low cost; most trials used 1 mg.

Different form than human trials proved effective.

The Primeadine difference

Spermidine supplements aren't all made the same. Here's how Primeadine compares.

100% natural whole-food

Every batch third-party tested

Full polyamine matrix

Backed by science

Dosage aligned with clinical research

Defatted for better stability

PRIMEADINE

Other Brands

Start your
90-day cellular reset.

Your body's renewal process, supported daily.

Whole-food spermidine, not synthetic.

Third-party tested in Japan and the US.

Guided by Oxford research.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary.