Primeadine® Original Whole-Food Spermidine Supplement

HEALTHY AGING | CELL HEALTH | RADIANCE
4.9
Rated 4.9 out of 5 stars
4.9 Stars (171 Reviews)

A science-led, whole-food spermidine supplement designed to support healthy aging, cellular maintenance, and everyday vitality. Made from concentrated, glyphosate-free wheat germ extract, sourced in Japan.

AMOUNT: 365 Days
30 Days60 Days90 Days180 Days365 Days
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High quality & standards

Primeadine® undergoes rigorous third party testing, both in the Japan (which has the strictest food quality and safety standards in the world) and in the USA. It is free from heavy metals, mycotoxins, pesticides, and herbicides.

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Lab tested
Benefits timeline

When to expect results

Primeadine® supports natural cellular processes that take time. Activity begins from day one, but cellular renewal is quiet and cumulative, building steadily with each passing month.

Most customers report more meaningful changes after 3 to 6 months. Anything shorter simply doesn't give those processes a fair chance, which is why 90 days is the honest minimum we recommend.

Mo
1
Cellular activity begins The work starts from day one. Quietly, at a cellular level.
Mo
2–3
Early signals Some customers notice subtle shifts in sleep or energy. Many notice nothing yet, both are normal.
Mo
3–4
The shift Most customers begin to notice meaningful change: sleep, hair, skin, and energy most commonly.
Mo
5+
Building & consolidating Benefits deepen with consistent use. The longer you give it, the more your cells benefit.

Backed by Oxford science. Trusted by clinicians.

Our work is guided by an international network of scientific and clinical advisors, many of which are affiliated with the University of Oxford, across physiology, immunology, longevity science, and clinical nutrition.

This ensures our approach remains grounded in the latest research and scientific integrity, not hype and trends.

Prof Denis Noble (University of Oxford)

Emeritus Professor of Physiology and pioneer in systems biology.

Dr. Ghada Alsaleh (University of Oxford)

Researcher in immunology and autophagy, with a focus on aging and immune function.

Dr. Katja Simon (Max Delbrück Center, Berlin)

Leads research into autophagy in the immune system, including its role in cellular maintenance.

Dr Sasi Senga | Oxford Healthspan

Dr. Sasi Senga (University of Oxford)

Neurosurgical oncologist and researcher focused on cancer biology.

Dr. Olivia Lesslar

Celebrity longevity doctor specializing in complex chronic conditions and integrative approaches to health.

Dr. Sandra Kaufmann

"Best in medicine" longevity doctor and researcher with a background in cellular biology and aging.

Dr Paul Ch'en | Oxford Healthspan

Dr. Paul Ch'en (University of Oxford)

University of Oxford college GP and co-founder of the Oxford Longevity Project, with interests in preventative and holistic care for cancer.

Amy Lamotte | Oxford Healthspan

Amy Lamotte

Clinical nutritionist specializing in personalised nutrition and immune health.

Recommended by trusted health professionals

Dr. Olivia Lesslar

@drolivialesslar

Celebrity Anti-Aging Doctor & Psychoneuroimmunologist

Primeadine is an exceptional quality spermidine that I use in many protocols, especially when I am trying to induce autophagy. These include such diverse protocols as those for tinnitus, post-viral syndromes, 'autoimmunity', and graying hair! I am especially pleased to have a gluten-free version to offer patients.

Dr. Jeff Armstrong

@theagingwellpodcast

Host, Aging Well Podcast and Prof of Exercise Science at Western Oregon University in Portland

I started Primeadine last night. Impatient as I am, I started at 3 capsules. Despite disrupted sleep, I had my best recorded REM sleep (1:35, 24%) and good restorative sleep. I am impressed! My “Biocharge” on my Helio Strap has been low. I was still “low” but significantly improved considering I went to bed at a 5 (drained)… [it] is the highest I have been in a while.

Nadine Artemis

@nadineartemisofficial

Beauty Philosophist, Author & Founder of Living Libations

My renegade beauty secret for deeper sleep, stronger nails, longer lashes, fuller hair, smoother skin, and fading freckles.

Tim Gray

@timbiohacker

Europe's Leading Biohacker & Founder of the Health Optimisation Summit

Primeadine by Oxford Healthspan is my go-to spermidine supplement. Made with rigorously tested Japan-sourced ingredients and a unique prebiotic to boost gut production, it’s unmatched in quality and effectiveness and doesn't have the nasty additional bulking agents like other brands.

Dr. Sandra Kaufmann

@kaufmannantiaging

Longevity Doctor & Author of The Kaufmann Protocol: Why We Age and How to Stop It

There is no question that spermidine is a crucial component to any longevity program. Thankfully, Oxford Healthspan offers an unparalleled product line. The quality is unprecedented, derived from naturally-sourced materials and manufactured in Japan. As a result, the products contain not only spermidine, but related polyamines which provide additional health benefits. As a result, I highly recommend this product line to all of my patients.

Carol Vorderman

@carolvorders

British TV personality & Biohacker

I’m nearly 62, and I started looking into lowering my biological age. Primeadine supplements really help with, fundamentally, what’s called autophagy, which is getting rid of rubbish in your cells and using it for energy and for cell renewal and for your brain as well. Lots of you ask about what I take and this is a key essential.

Dr. Olli Sovijarvi

@ollisovijarvi

Pioneer of Holistic & Preventive Medicine in Finland & Medical Doctor & CEO of Biohacking Center

My wife has been taking it for six months and I think she looks younger and her hair growth has come back after pregnancy, and nails, and all kinds of things that are a reflection of good vitality.

Dr Stephanie Estima

@dr.stephanie.estima

Women’s Health Expert & Author of “The Betty Body”

My hair was starting to go from gray back to […] dark brown. It was gray, and now it’s back to its original color. When I think about spermidine as a whole, the way I am viewing it is as a way to reduce systemic inflammation.

Magdalena Groselj

@magdalenas_secrets

Biohacker & Anti-Aging Entrepreneur

I’ve noticed (via the Oura ring app) my deep and REM sleep improved enormously! My nails are so firm and my skin is even more beautiful and glowing. If you want to improve your health and rejuvenate your body, I suggest following an anti-aging protocol with Primeadine.

Luke Storey

@lukestorey

Writer, Meditation & Metaphysics Teacher & Lifestyle Design Expert

The best spermidine supplement on the market.

Nathalie Niddam | Oxford Healthspan

Nathalie Niddam

@nathalieniddam

Certified Holistic Health Coach & Biohacker

Primeadine upregulates autophagy and mitophagy, helps the immune system to rejuvenate plus it protects DNA and supports deep sleep, hair skin, and nails. It’s a staple in my supplement stack!

Zora Benhamou

@hackmyage

Gerontologist, Biohacker & Sports Nutrition Coach

I’ve been taking Primeadine spermidine on and off for about 3 years. Every time I go on it, my sleep or recovery scores on my tracking devices go up. And when I go off of it, after several weeks they start to drop.

One of my non-negotiable supplements for better skin, hair, lash growth, and autophagy. And best of all - improved sleep.