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Neurogan Health Spermidine Tablets provide 10 mg of spermidine 3HCl in each tablet. Each bottle contains 120 tablets.
The directions recommend two tablets daily, one in the morning and one in the evening. At that suggested use, the daily amount is 20 mg of the labeled spermidine 3HCl form and one bottle lasts about 60 days.
The active ingredient is a manufactured trihydrochloride salt rather than a wheat-germ extract. This provides a clearly labeled amount in a non-wheat tablet format.
Each tablet contains 10 mg of the spermidine 3HCl form listed on the Supplement Facts panel.
The suggested use is one tablet in the morning and one in the evening.
The current batch has a third-party certificate of analysis. You can open it in the Lab chapter below.
At two tablets per day, 120 tablets provide approximately 60 days of use.
There is no proprietary blend. The active amount is stated directly on the Supplement Facts panel.
Adults who want a defined 10 mg amount of spermidine 3HCl in each tablet, a non-wheat active source and a straightforward morning and evening routine, without relying on the variable polyamine content of a food extract.
This finished product has not been clinically tested to extend lifespan, reverse aging, improve memory or energy, preserve telomeres, improve cardiovascular health or produce whole-body autophagy.
Published human studies do not establish an optimal universal spermidine dose, that 20 mg of spermidine 3HCl per day is better than lower amounts, or a predictable timeframe for results. The manufactured 3HCl form does not, by itself, prove better absorption, stronger effects or clinical superiority over food-derived spermidine extracts, and no head-to-head human trial has compared them. Manufactured does not automatically mean more effective, and natural does not automatically mean better absorbed.
Spermidine is not associated with a validated physical sensation that proves it is working. Some people report changes in reviews, while others feel nothing obvious, and customer experiences are not a substitute for controlled research. Spermidine benefits
*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.
Food and your own cells already supply some. A supplement adds a fixed daily amount.
In food
24 mg
Wheat germ is one of the richest sources, at about 24 mg per 100 g, followed by soybeans, aged cheese and mushrooms. How much you get depends on what you eat each day.
With age
Your cells make spermidine as well as taking it in from food, and levels in the body tend to decline as people get older.
In your cells
Spermidine is studied for its role in autophagy, the process cells use to break down and recycle worn components. The human studies so far are summarized in Lab & research.
Twice a day
20 mg
Two tablets give 20 mg of spermidine 3HCl a day, the same amount whatever you eat. 3HCl names the salt form on the label; it is not a triple dose.
Food values are representative published measurements (Ali et al., 2011).
The three products differ in labeled amount, how many you take a day and how long a bottle lasts. They have not been compared in a clinical trial, so pick the one that suits you.
$30 a bottle
$0.50 a day · lasts about 60 days
Suits you if you want the lowest-priced format and are happy taking one tablet in the morning and one in the evening.
A subscription, delivered every 30 days. Pause or cancel any time.
$45 a bottle
$0.75 a day · lasts about 60 days
Suits you if you prefer one capsule a day in a liposomal format.
$63 a bottle
$0.53 a day · lasts about 120 days
Suits you if you want a once-daily 50 mg capsule and a bottle that lasts about 120 days.
30-day money-back guarantee
The liposomal amount describes liposomal spermidine, so it does not compare milligram for milligram with the tablets or Pro. No head-to-head study has shown that one format works better.
Follow the product directions and keep the amount consistent unless a qualified healthcare professional advises otherwise.
01 · MorningTake one tablet in the morning. Pairing it with something you already do, such as your first glass of water, makes it easier to remember.
02 · EveningTake one tablet in the evening. The directions do not require food, so a meal is optional.
03 · Stay consistentAt two tablets per day, one 120-tablet bottle lasts approximately 60 days. Subscribe and Save can deliver every 2 months, so a new bottle arrives as you finish the last.
Establish the routine and pay attention to how the tablets suit you. There is no required sensation that shows the product is working.
Keep the same two-tablet routine each day. Consistency matters more than how you feel day to day.
Look back on how the routine has suited you, then decide whether to continue.
No study has tested spermidine with NMN or resveratrol as a stack. If you combine supplements or take medication, have your full routine reviewed by a healthcare professional.
This product is intended for adults. Do not use if you are pregnant or nursing.
Consult a healthcare professional before using this or any dietary supplement, particularly if you take medication, are under medical care or are preparing for surgery.
One declared active ingredient and four named tablet ingredients, listed as they appear on the product label.
DECLARED ACTIVE
Spermidine trihydrochloride
Spermidine 3HCl is spermidine in salt form, spermidine trihydrochloride, as listed on the Supplement Facts panel. It is a manufactured ingredient, not a wheat germ extract.
As listed on the Supplement Facts panel.
The amount of spermidine 3HCl is stated directly on the Supplement Facts panel.
The complete tablet formula includes four named ingredients that hold the tablet together. None of them is an active ingredient.
The active ingredient is spermidine 3HCl rather than a wheat-derived extract.
A lab report tests a specific product batch against defined specifications. Published research studies spermidine in different forms, doses, populations and settings. These are two different types of evidence, so we keep them clearly separated. Spermidine dosage guide
Two kinds of evidence
A 2026 double-blind, placebo-controlled pilot studied oral spermidine after a third SARS-CoV-2 vaccine dose. Researchers reported that supplementation was well tolerated and found increased autophagy-related gene activity in B cells, in line with higher autophagic flux. The study was small and specific to this setting.
Alsaleh et al., 2026A 2023 randomized crossover pharmacokinetic study found that oral spermidine increased plasma spermine but did not significantly increase plasma spermidine or putrescine. This suggests that orally consumed spermidine may be converted before appearing in systemic circulation. The study examined short-term metabolism, not clinical benefits.
Senekowitsch et al., 2023A randomized, double-blind, placebo-controlled study of a high-purity spermidine trihydrochloride found no significant changes in clinical, lipid, chemistry or blood measures, no product-related adverse events, and little change in circulating polyamines. It did not test 20 mg a day, women, long-term use or this product, and two authors worked for the ingredient’s maker.
Keohane et al., 2024The SmartAge trial tested a spermidine-rich wheat-germ extract in adults with subjective cognitive decline. It did not find a significant improvement in the primary memory endpoint or the main secondary outcomes compared with placebo. The tested form and amount were different from this product.
Schwarz et al., 2022Reviews marked Verified Buyer come from confirmed purchases.
Reviews describe individual experiences. They are not clinical evidence.
Individual results vary. These are customer experiences, not a clinical study.
Each tablet provides 10 mg of the spermidine 3HCl form listed on the Supplement Facts panel. The bottle contains 120 tablets.
Serving size and daily use are two separate figures. A serving is the 10 mg in one tablet. The suggested daily use is two servings, one in the morning and one in the evening, for 20 mg of spermidine 3HCl a day.
Follow the product directions. They recommend two tablets daily, divided between morning and evening.
There is no universally established supplemental dose that is right for every person. Consult a healthcare professional before changing the amount, particularly if you take medication or are under medical care. Spermidine dosage guide
There is no established Daily Value or clinically validated universal dose for supplemental spermidine.
Ten milligrams is the amount of spermidine 3HCl in one tablet, and the suggested daily use totals 20 mg of the labeled 3HCl form. Human studies have used different amounts, ingredients and treatment periods, and more has not been proven to be better.
Spermidine 3HCl means spermidine trihydrochloride, a salt form of spermidine. “3HCl” is part of the chemical ingredient name. It does not mean the tablet contains three doses or is three times stronger.
That has not been established.
Spermidine 3HCl provides a clearly labeled manufactured form and avoids wheat germ as the active source. Wheat-germ extracts provide a food-derived matrix and have been used in several human studies.
No head-to-head human trial has shown that one form is more effective, more bioavailable or better for longevity.
The active ingredient is manufactured spermidine 3HCl rather than spermidine extracted from wheat germ.
“Manufactured” describes the source and production route. It does not prove that the ingredient is more or less effective than a naturally derived extract.
The active ingredient is not derived from wheat germ, and wheat is not listed among the product ingredients.
People with celiac disease or a severe wheat allergy should rely on the finished-product allergen statement and manufacturing documentation rather than ingredient source alone. Ask us for that documentation before use.
The directions recommend taking one tablet in the morning and one in the evening.
No human study has established that this timing produces better health outcomes than another consistent schedule. For a fuller discussion, read our guide to when to take spermidine.
The directions do not specify that the tablets must be taken with food.
Follow the product label. Speak with a healthcare professional if you experience digestive discomfort or need advice based on your medications or health circumstances.
There is no clinically validated onset time.
Published studies use different forms, amounts, populations and endpoints. Some people may not feel an obvious change, and the absence of a sensation does not show whether a cellular pathway has changed.
Spermidine promotes autophagy-related activity in cells and model organisms, and one small 2026 human pilot found increased autophagy-related gene activity in circulating B cells.
That does not establish that this product reliably activates autophagy throughout the body or produces a specific clinical benefit. Spermidine and autophagy
Yes. The current certificate of analysis was issued by an ISO/IEC 17025-accredited laboratory.
It confirms the tested batch’s identity and potency and reports results for selected heavy metals, microorganisms and residual solvents. The report is linked in Lab & research.
The label lists four other tablet ingredients in addition to spermidine 3HCl: magnesium stearate, microcrystalline cellulose, dicalcium phosphate and silicon dioxide.
The formula does not use a proprietary blend.
The product is not intended for people under 18. Do not use it if you are pregnant or nursing.
Consult a healthcare professional before use if you take medication, have a medical condition, are under medical care or are preparing for surgery. Spermidine side effects and safety
Start with a single bottle or subscribe and save 20%.
Adds a subscription, delivered every 30 days, 20% off. Pause or cancel any time.
*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.
Not for use by persons under 18. Do not use if pregnant or nursing. Consult a healthcare professional before using this or any dietary supplement, especially if you take medication, are under medical care or are preparing for surgery.
