What Is Spermidine?
Spermidine Explained
Spermidine is a potent polyamine known for inducing autophagy - the body's vital cell renewal and recycling process - and inhibiting the root causes of aging, known as the "Hallmarks of Aging".
Supplementation with spermidine in humans has been shown to support memory, cognition and heart health, balance hormones and improve hair growth and fullness.
Epidemiological studies have correlated higher spermidine levels with longer life.
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Where Is Spermidine Found?
Your gut biome and body tissues produce 2/3 of your body's spermidine. The final 1/3 comes from your diet.
With age, your ability to produce spermidine declines, making you much more reliant on food-derived, supplemental sources of spermidine.
Spermidine is present in all plants but is abundant in wheat germ, the long fermented Japanese soybean dish, Natto, shiitake mushrooms, and peas.
Shop NowSpermidine & The Hallmarks Of Aging
Spermidine Targets 9 Of The 12 Root Causes Of Aging
The main mechanism it does this is by activating autophagy, a cellular "clean up" and recycling process so fundamental that the Japanese scientist, Yoshinori Ohsumi, who explained how it works won the Nobel Prize in 2016.
What Is Autophagy?
Autophagy is a cellular "clean up" and recycling process that slows with age. A leading University of Oxford scientist and member of our scientific advisory board, Professor Katja Simon, describes autophagy as, “the recycling van that delivers the rubbish to the recycling center. It is very important to degrade toxic waste for the survival of the cell, and a cell without autophagy cannot survive.”
Learn MoreBenefits Of Spermidine
Scientific Advisory Board
Professor Denis Noble
World-Renowned Physiologist & Emeritus Professor of Physiology, University of Oxford (Oxford)
Professor Denis Noble is a globally-recognized British biologist who developed the first mathematical model of cardiac cells in 1960. He held the Burdon Sanderson Chair of Cardiovascular Physiology at the University of Oxford from 1984 to 2004 and was then appointed Professor Emeritus and Co-Director of Computational Physiology.
On an international scale, he was elected President of the International Union of Physiological Sciences (IUPS) at its Congress in Kyoto in 2009, and then elected for a second term at the 2013 Congress in Birmingham, UK. As a pioneer in the field of systems biology, he is the author of the first popular book on Systems Biology, The Music of Life. His book, Dance to the Tune of Life, Biological Relativity, extends the systems approach to biology, including evolutionary biology. Denis Noble has published more than 600 papers and 11 books. Together with Leslie Kenny, Dr. Paul Ch'en and Sir Christopher Ball, he is a co-founder of the non-profit organization, Oxford Longevity Project.
Dr. Katja Simon
Oxford University Professor of Immunology & Head of the "Autophagy in the Immune System" laboratory, Max Delbruck Center (Berlin)
Dr. Katja Simon began her autophagy research as Professor of the Immunology at the Kennedy Institute for Rheumatology, University of Oxford. As a principal investigator, she set up an independent line of enquiry investigating autophagy, another cellular process determining cell fate, in the hemato-immune system. Her group discovered that autophagy, the main conserved cellular bulk degradation pathway, maintains healthy red blood cells, stem cells and memory T cells and promotes differentiation while preventing aging of the hematopoietic system. She has since been appointed to Head of the "Autophagy in the Immune System" laboratory at the Max Delbruch Center in Berlin as part of an initiative to attract outstanding female scientists from abroad. She and her team are continuing her research on autophagy in the immune system there.
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Dr. Ghada Alsaleh
Principal Investigator in Immunology and Autophagy & Leader of the UK's First Space Innovation Lab, University of Oxford (Oxford)
Dr. Ghada Alsaleh moved to Oxford in 2017 to pursue her career as a scientist and to join Professor Katja Simon’s group at the University of Oxford's Kennedy Institute for Rheumatology, where she developed a growing curiosity about aging and the regulation of biological processes that are disturbed during the aging process. In her research, she showed that autophagy is specifically reduced in older human lymphoid cells, which contributes to compromised memory T and B cell responses in the elderly. This work has uncovered novel targets and biomarkers for the development of anti-aging drugs for human T cells.
Dr. Ghada was awarded funding for her proposal “Targeting autophagy for the treatment of osteoarthritis”. Osteoarthritis (OA) is the most common form of arthritis worldwide but lacks effective therapy. In this proposal, she aims to design a genetic screen using TFEB protein expression as a read-out to identify new potential targets for the treatment of Osteoarthritis and various age-related diseases. She has recently become leader of the UK's first Space Innovation Lab, which aims to understand the effect of space microgravity on the aging process.
Dr. Sasi Senga
Neurosurgical Oncologist, Lecturer in Medicine, Author & Researcher, University of Oxford (Oxford)
Dr. Sasi Senga is a neurosurgical oncologist with two Masters - one in Neuroscience and another in Cancer & Therapeutics - and specialist training from the Dana Farber Cancer Institute and the Barts Cancer Institute. He graduated as an Oxford Clarendon Scholar and Excellence Award/Top Honours Award recipient from Harvard Medical School. He also runs a cancer foundation for the underprivileged in two countries in memory of his mother, Kalavathi, who passed away to cancer, has authored a few books on cancer, and is currently working on a paper on the Hallmarks of Cancer.
Read MoreClinical Advisory Board
Dr. Paul Ch'en
Holistic Cancer Care Coach, CanSure Heal It, GP Partner & Doctor to Keble and Sommerville Colleges, University of Oxford (Oxford)
Dr. Paul Ch'en is a Practice Partner at the Observatory Medical Practice in Jericho, Oxford, where he is also the College Doctor to Keble and Somerville Colleges at the University of Oxford. Paul has recently embarked on a new chapter as a Holistic Cancer Care Coach through his online coaching service, CanSure Heal It. This service supports newly diagnosed cancer patients to take charge of their health and gives them the tools to help manage their condition. As a former cancer immunologist, he has a particular interest in the early diagnosis of cancer and is keenly interested in preventing the diseases of aging, cognitive behavioral therapy and acupuncture. Having had his early education in Japan, Dr. Ch'en also stays abreast of the latest Japanese therapies and research to promote healthy aging, reverse disease and live a long, healthy and happy life. He also co-founded the non-profit organization dedicated to educating the public on healthy aging, the Oxford Longevity Project, with Oxford Healthspan Founder, Leslie Kenny, Scientific Advisor, Professor Denis Noble, and Academic and Former Warden of Oxford University's Keble College, Sir Christopher Ball.
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Dr. Sandra Kaufmann
"Best in Medicine" Longevity Doctor & Creator of the Kaufmann Anti-Aging Protocol (Miami)
Dr. Sandra Kaufmann began her academic career in the field of cellular biology, earning a Master’s Degree from the University of Connecticut in Tropical Ecology and Plant Physiology. Turning to medicine, she received her medical Degree from the University of Maryland, and completed a residency and fellowship at Johns Hopkins in the field of pediatric anesthesiology. Presently, she is the Chief of Pediatric Anesthesia for the Memorial Health Care system and the Joe DiMaggio Children’s Hospital in Florida and recently received the accolade of "Best in Medicine" from the American Health Council. She also practices as a longevity doctor and created the first-of-its-kind Kaufmann Protocol - a culmination of years of non-clinical research leading to the first-ever, scientific guide to personalized deceleration of the aging process.
Dr. Olivia Lesslar
Medical Doctor, TEDx Speaker & NYC Journal 50 Under 50 (Global)
Dr. Olivia Ly Lesslar is an Australian medical doctor who specializes in complex chronic conditions including neurodegeneration, "mystery illnesses", atopy, cancer, and psychoneuroendoimmunology - the intersection of psychology, hormones, the nervous system, and the immune system. After her medical residency in Australia, she worked across the USA: First with double-board certified neurologist and psychiatrist Dr. Jay Lombard at the Neuroimmunology Associates of New York and currently, with Dr. Chris Renna at LifeSpan Medicine, Los Angeles. Since 2020 she has spent more time in her home country of Australia, and now works with internationally renowned Professors - neurosurgeon Charlie Teo and immunologist allergist Pete Smith at their respective clinics. In 2022, she was featured in the NYC Journal 50 under 50 as a distruptor in her industry.
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Amy Lamotte
Clinical Nutritionist (Hong Kong)
Amy Lamotte is the Managing Director of Vallotte Nutrigenomics Limited in Hong Kong, where she splits her time between clinical nutrition and nutrition research. Her clinical practice is focused on personalized nutrition for autoimmune and chronic inflammatory conditions. She devotes half of her time to research in order to contribute to our understanding of how nutrition is the key to creating vibrant health at any age. Her current research interests include nutrition for modulating the immune system and increasing healthspan, nutritional genomics, circadian biology, and the microbiome. She has a Master's of Science in Human Nutrition (summa cum laude) from the University of Bridgeport and a J.D. from Yale Law School.
Read MoreReferences
1. López-Otín, C., Blasco, M. A., Partridge, L., Serrano, M., & Kroemer, G. (2013). The Hallmarks of Aging. Cell, 153(6), 1194. https://doi.org/10.1016/j.cell.2013.05.039
2. Hofer, S. J., Simon, A. K., Bergmann, M., Eisenberg, T., Kroemer, G., & Madeo, F. (2022). Mechanisms of spermidine-induced autophagy and geroprotection. Nature Aging, 2(12), 1112-1129. https://doi.org/10.1038/s43587-022-00322-9
3. Madeo, F., Bauer, M. A., Carmona-Gutierrez, D., & Kroemer, G. (2019). Spermidine: A physiological autophagy inducer acting as an anti-aging vitamin in humans? Autophagy, 15(1), 165-168. https://doi.org/10.1080/15548627.2018.1530929
FAQs
What is the best spermidine dose to take?
The US FDA has not ruled on a safe upper limit for food-derived spermidine, but the European Union's European Food Safety Authority has deemed 6mg of supplemental food-derived spermidine to be the safe upper limit.
To date, most studies have been conducted using a daily dose of 1mg of food-derived spermidine, together with spermine and putrescine.
Synthetic spermidine has not been tested for safety in humans.
What makes Primeadine® the best spermidine supplement?
While we can’t speak directly about the formulation of other spermidine products, here are some of the main differentiators of Primeadine®/Oxford Healthspan.
- We source our raw materials from Japan, which is known for their Nobel Prize winning scientific leadership on autophagy, or cell renewal. They have the most advanced extraction process, are known worldwide for their rigorous quality control and testing, and they meet the standards of the Japan Health Food and Nutrition Food Association. Our raw materials are manufactured in Japan in an FDA-registered and -inspected facility with ISO22000 standards, the highest in food quality control. Our raw materials are tested for heavy metals, mold, fungi and bacteria at the Japan Food Research Lab (JFRL), a third party independent testing lab. Every single batch must be tested here as food-derived spermidine will have varying quantities of spermidine per batch and we must ensure that every batch contains the minimum effective dose of 1mg stated on our labels. In addition, our spermidine is encapsulated in an FDA cGMP facility in the USA and undergoes purity testing there as well at Eurofins or Delta.
- Our capsules do not contain any synthetic ingredients, whereas other supplements contain magnesium stearate (of which circa 80% will contain hydrogenated fats; the supplement industry is not legally required to get rid of hydrogenated oils the way the processed food industry has been mandated by law to), shellac, talc and glycerin. Our products are all suitable for vegans.
- Our formulation contains a special type of prebiotic fiber, called FructoOligoSaccharide (FOS), that selectively feeds the friendly spermidine-producing bacteria in the gut biome. The idea is to increase both supplemental or 'exogenous' spermidine as well as encourage your own body's natural ability to produce 'endogenous' spermidine.
- We do not use liposomes in Primeadine because this is unnecessary for absorption and would prevent the benefits that happen when spermidine is exposed directly to the gut lining. There is no evidence that spermidine cannot be taken up by the cells on its own. Similar to amino acids, polyamines do not need a liposome to cross into the cell or to be taken up with epithelial cells. The process of creating a liposomal version also creates unnecessary expense.
- We do not synthetically enrich our product with synthetic spermidine.
- We do not use doses beyond what the European Food Safety Authority (EFSA) has mandated as safe for human consumption, which is 6mg daily. Please note that this is related to food-derived spermidine. Synthetic spermidine and synthetically enriched spermidine have never been tested in humans for safety or efficacy and are being sold without regulatory oversight.
- We work closely with our scientific and clinical advisers at the University of Oxford, all of whom take our product and share it with their families. We are also the only non-Japanese member of the Japan Autophagy Consortium, whose Senior Adviser is the 2016 Nobel Prize Winner in Medicine or Physiology, Prof Yoshimori Ohsumi, and whose Director is Prof Tamotsu Yoshimori, Osaka University. Prof Yoshimori conducted all of the mammalian research in autophagy that helped underpin Prof Ohsumi's work in yeast cells.
Why does it matter if spermidine is synthetic or not?
Synthetic spermidine is a 2-dimensional chemical mimic, but we should never forget that molecules are 3-dimensional. Humans have co-evolved with plants over millenia and our bodies recognize the 3-dimensional molecules made by plants. Our bodies can recognize some elements of 2-dimensional mimics, but they are akin to the mirror images of your hands when you put your palms together - 2-dimensionally identical, and yet your right hand cannot wear a left-handed glove.
We have tested other spermidine products whose labels state they contain 'wheat germ with spermidine' and noticed that they have a small amount of wheat germ 'cut in' with high amounts of synthetic spermidine. Often, these are high dose, low cost options with no guarantee that they will work, or that they are safe. Synthetic spermidine has not been tested for safety or efficacy in humans, only food-derived spermidine has.
What are the benefits of plant-derived spermidine supplements?
Epidemiological studies have correlated higher spermidine levels with longer life. This is because spermidine induces autophagy, the body’s cellular renewal and "clean up" process, and it inhibits 9 of the 12 hallmarks of aging, the paths down which we age. Some of the hallmarks spermidine acts upon include inflammation, stem cell and mitochondrial dysfunction, and gut dysbiosis.
Hacking the hallmarks and inducing autophagy have a whole-body effect and are responsible for the many benefits experienced.
Supplementation with food-derived spermidine in humans has been shown to support cognition and heart health, promote hormonal balance, improve hair growth and fullness (including eyelashes and brows), and strengthen nails.
Other benefits, as noticed by our clients, include deeper, sounder sleep, hair color repigmentation, enhanced energy levels, brighter, more supple skin, and improved gut health.
Why is Primeadine® more expensive compared to other spermidine supplements?
We take great care to use the highest quality ingredients and to keep out the 'nasties' commonly used in the supplement manufacturing process in our products. We take the same approach that we do when baking a birthday cake for our children: we use the highest quality ingredients - no industrial seed oils such as wheat germ oil that oxidizes rapidly, no magnesium stearate to make the powder flow faster through automated encapsulation equipment (approximately 70% of all magnesium stearate used as 'flow agents' are hydrogenated industrial seed oils), no talc to make the powder denser to fit more compactly into fewer capsules.
We also do not use synthetic spermidine which is very cheap and often 'cut' into products stating 'wheat germ with spermidine.'
We choose food-derived spermidine. Yes, it is more costly, just as the best cake ingredients for your child's birthday cake would be too. It's a choice and philosophy about value for money.
What should I feel when taking Primeadine® for the first time?
Primeadine® works at a cellular level, so the results take time (we recommend taking it continously for 12 weeks for best results). That said, some of our customers have reported deeper sleep, as measured by the sleep-tracking ōura ring, from the very first night of taking it. See our Testimonials section for more!