Our products are fully backed by science
Manapura's commitment to rigorous research ensures our products are backed by science not by trends or unverified claims, setting a new standard in the supplement industry. Our Longevity product line aims to support healthy aging and lifespan, while our Nootropics range enhances cognitive function, memory, and mental clarity. Together our products promote overall well-being and performance. On this page we look at the science-backed evidence for the benefits of our products.
Unlocking LongevityUnlocking Longevity: The Scientific Backing Behind Anti-Aging Supplements
Central to the bodies longevity and aging processes are two key players: NAD+ and Sirtuins.
NAD+ is a vital molecule found in every cell of your body. It helps convert nutrients into energy and plays a crucial role in repairing DNA and maintaining healthy cellular function. As we age, NAD+ levels naturally decline, which can lead to reduced energy, and slower cell repair.
Sirtuins, often referred to as "longevity proteins," are activated by NAD+. Sirtuins help to regulate the important functions in our aging process, as well as regulate inflammation and stress resistance. Without Sirtuins, the DNA in our cells is believed to degrade, and it is this process which is thought to lead to aging. The activity of Sirtuins, promoted by NAD+ helps to reduce these effects.
It is natural for us to want to slow down the signs of aging, and maintain optimal health for as long as possible. Thanks to advancements in research, a variety of supplements have emerged that promote NAD+ and Sirtuin activity, improve cellular health, and can therefore protect against age-related damage in cells.
On this page, we'll further explore just a few of the many scientific studies backing these seven popular anti-aging compounds: Beta-Nicotinamide Mononucleotide (NMN), Trans-Resveratrol, Tri-Methyl-Glycine (TMG), Fisetin, Hyaluronic Acid, Spermidine and Berberine.
NMN is a precursor to NAD+ (nicotinamide adenine dinucleotide), a critical molecule that supports energy production and DNA repair in our cells. Research has shown that NAD+ levels half by the time we reach middle age [01].
Research studies have demonstrated that not only does NMN increase NAD+ levels, but it can also lead to improvements in mitochondrial function and reductions in age-related decline [02].
In a study conducted by the Washington University School of Medicine, NMN supplementation was found to improve insulin sensitivity, enhance skeletal muscle function, and boost aerobic capacity in older adults, which supports the role of NMN in anti-aging efforts [03].
References
[01] “In vivo NAD assay reveals the intracellular NAD contents and redox state in healthy human brain and their age dependences”
Published in: Proceedings of the National Academy of Sciences of the United States of America (PNAS), https://pmc.ncbi.nlm.nih.gov/articles/PMC4352772/pdf/pnas.201417921.pdf
[02] "NAD+ repletion improves mitochondrial and stem cell function and enhances life span in mice"
Published in: Science, https://www.science.org/doi/10.1126/science.aaf2693
[03] "Chronic nicotinamide mononucleotide supplementation is well-tolerated and elevates NAD+ in healthy subjects: a randomized, double-blind, placebo-controlled study"
Published in: Nature Communications, https://www.nature.com/articles/s41514-022-00084-z
Resveratrol, a polyphenol found in red wine, is known for its antioxidant properties. Trans-Resveratrol is the bioactive form, which is more easily absorbed by the body. Research suggests that resveratrol activates sirtuins, the proteins associated with longevity, and mimics the effects of calorie restriction, which has been shown to extend lifespan in various diverse organisms, as published in Nature [04].
Further research, also published in Nature has shown that resveratrol activates SIRT1, which plays a role in extending lifespan and protecting against metabolic disease [05]. Resveratrol's ability to improve cardiovascular health, reduce oxidative stress, and protect against inflammation has also been illustrated in the Journal of Cardiovascular Pharmacology [06].
References
[04] “Small molecule activators of sirtuins extend Saccharomyces cerevisiae lifespan”
Published in: Nature, https://www.nature.com/articles/nature01960
[05] "Resveratrol improves health and survival of mice on a high-calorie diet"
Published in: Nature, https://www.nature.com/articles/nature05354
[06] "Cardioprotective effect of resveratrol, a natural antioxidant derived from grapes"
Published in: Cardiovascular Research, https://academic.oup.com/cardiovascres/article/47/3/549/345153
TMG, also known as betaine, plays a role in methylation, a process vital for DNA repair and gene regulation. The process of methylation naturally declines as we age, contributing to cellular aging. By supporting methylation, TMG may maintain DNA stability and protect against age-related decline.
Homocysteine is an amino acid, and a biomarker strongly linked to cardiovascular disease and brain health. It increases in our bodies as we age, and a minor increase in levels can lead to a 40% increase in risk of cardiovascular illnesses and Alzheimer’s disease [07].
A study published in the American Journal of Clinical Nutrition indicates that TMG supplementation can help reduce homocysteine levels [08], thereby protecting against age-related decline. TMG has also been shown to protect liver function [09], as well as increase sports performance in controlled research studies [10].
References
[07] “Plasma Homocysteine as a Risk Factor for Dementia and Alzheimer’s Disease”
Published in: The New England Journal of Medicine, https://www.nejm.org/doi/full/10.1056/NEJMoa011613
[08] "Betaine Supplementation Lowers Plasma Homocysteine in Healthy Men and Women"
Published in: American Journal of Clinical Nutrition, https://www.sciencedirect.com/science/article/pii/S0022316622158530
[09] "Betaine supplementation attenuates the progression of nonalcoholic steatohepatitis by reducing liver injury, oxidative stress, and inflammation"
Published in: Molecular Medicine, https://pubmed.ncbi.nlm.nih.gov/28849079/
[10] “Effect of betaine supplementation on power performance and fatigue”
Published in: Journal of the International Society of Sports Nutrition, https://pmc.ncbi.nlm.nih.gov/articles/PMC2651845/pdf/1550-2783-6-7.pdf
Fisetin is a flavonoid found in fruits like strawberries and apples. Recent studies suggest it may act as a senolytic, meaning it helps clear out senescent cells – also known as "zombie" cells – that no longer function properly but still linger in the body, promoting inflammation and tissue damage.
Research published in EBioMedicine identified fisetin as a potent senolytic, capable of reducing the number of senescent cells in mice, which extended their lifespan and improved their overall health [11]. Though human studies are limited, fisetin’s potential to improve longevity by targeting senescent cells is a very promising area of ongoing research [12].
References
[11] "Fisetin is a senotherapeutic that extends health and lifespan"
Published in: EBioMedicine, https://pmc.ncbi.nlm.nih.gov/articles/PMC6197652/pdf/main.pdf
[12] "Fisetin is a senotherapeutic capable of extending lifespan in mice"
Published in: The Journals of Gerontology: Series A, https://pmc.ncbi.nlm.nih.gov/articles/PMC8839434/
Hyaluronic acid is a substance naturally found in our skin, joints, and connective tissue, where it retains moisture and keeps tissues lubricated. As we age, our body's natural production of hyaluronic acid decreases, leading to drier skin, joint pain, and reduced elasticity.
A published clinical study presented in [13] demonstrated that hyaluronic acid supplementation improves skin hydration and elasticity, which can reduce the appearance of wrinkles and maintain youthful skin. A separate literature review indicates hyaluronic acid's effectiveness in supporting joint health by increasing lubrication and reducing joint pain in patients with osteoarthritis [14]. Further, research published in Nature Communications suggests that very high molecular weight hyaluronic acid contributes to longevity in mammals [15].
References
[13] "Ingestion of an Oral Hyaluronan Solution Improves Skin Hydration, Wrinkle Reduction, Elasticity, and Skin Roughness: Results of a Clinical Study"
Published in: Journal of Evidence-Based Complementary & Alternative Medicine, https://pmc.ncbi.nlm.nih.gov/articles/PMC5871318/
[14] "Oral Administration of Polymer Hyaluronic Acid Alleviates Symptoms of Knee Osteoarthritis"
Published in: The Scientific World Journal, https://pmc.ncbi.nlm.nih.gov/articles/PMC3512263/
[15] "Naked mole-rat very-high-molecular-mass hyaluronan exhibits superior cytoprotective properties"
Published in: Nature Communications , https://pmc.ncbi.nlm.nih.gov/articles/PMC7217962/
Spermidine is a naturally occurring polyamine and has been extensively studied for its ability to promote autophagy, a cellular process that helps clear out damaged components and maintain cellular health. Autophagy is crucial for longevity, as it helps prevent the accumulation of dysfunctional cells that contribute to aging and disease.
A landmark study published in Nature Medicine found that spermidine supplementation extended lifespan in multiple organisms, including yeast, flies, and mice, by inducing autophagy [16]. Further research suggests that spermidine has cardiovascular benefits, as it has been shown to reduce blood pressure and improve heart function in aging individuals [17].
Additionally, a human-based study published in The American Journal of Clinical Nutrition linked higher dietary spermidine intake with lower all-cause mortality, reinforcing its potential role in promoting healthy aging [18].
References
[16] "Autophagy induction by spermidine promotes longevity"
Published in: Nature Medicine, https://tavernarakislab.gr/publications/NCBspermidine.pdf
[17] "Spermidine and cardiovascular health: longevity-associated polyamine reduces blood pressure and improves cardiac function"
Published in: Hypertension, https://pmc.ncbi.nlm.nih.gov/articles/PMC5381711/pdf/kaup-13-04-1280225.pdf
[18] "Higher spermidine intake is linked to reduced mortality in humans"
Published in: The American Journal of Clinical Nutrition, https://pubmed.ncbi.nlm.nih.gov/29955838/ or https://www.sciencedirect.com/science/article/pii/S0002916522029306?via%3Dihub
Berberine is a bioactive compound that has been widely recognised for its role in metabolic health. It has been compared to pharmaceutical drugs like metformin due to its ability to regulate blood sugar levels and enhance mitochondrial function.
A pivotal study published in Diabetes Care demonstrated that berberine effectively lowers blood glucose levels in type 2 diabetics, improving insulin sensitivity and reducing hemoglobin A1c [19]. Another study in Cell Metabolism suggested that berberine activates AMPK (adenosine monophosphate-activated protein kinase), often referred to as the “metabolic master switch,” which plays a crucial role in energy regulation and longevity [20].
Beyond its metabolic effects, berberine has shown promise in reducing cholesterol and triglyceride levels, thus improving cardiovascular health [21]. Its anti-inflammatory and anti-microbial properties also make it a powerful supplement for overall health and longevity.
References
[19] "Efficacy of berberine in patients with type 2 diabetes mellitus"
Published in: Diabetes Care, https://pmc.ncbi.nlm.nih.gov/articles/PMC4377488/
[20] "Berberine activates AMPK and improves metabolic disorders"
Published in: Cell Metabolism, https://pmc.ncbi.nlm.nih.gov/articles/PMC2464622/
[21] "Berberine in reducing cholesterol and cardiovascular risk"
Published in: Journal of Clinical Lipidology, https://mednexus.org/doi/full/10.1097/CD9.0000000000000087
The Science Behind Functional MushroomsThe Science Behind Functional Mushrooms: Lion’s Mane, Reishi, and Cordyceps
For centuries, functional mushrooms have played an important role in traditional medicine, offering a wide range of health benefits. Modern scientific research is now confirming many of these advantages, particularly in the areas of cognitive function, stress reduction, sleep quality, and physical endurance.
This page delves into the research behind three of the most well-documented functional mushrooms; Lion’s Mane, Reishi, and Cordyceps, and how they can contribute to improved health and well-being.
Lion’s Mane is increasingly recognised for its ability to support cognitive function, improve memory, and promote brain health. The key compounds in this mushroom, hericenones and erinacines, have been shown to stimulate nerve growth factor (NGF), a protein essential for the survival and function of neurons [01].
Recent studies have demonstrated that Lion’s Mane supplementation can enhance cognitive abilities and protect against neurodegeneration. A 12-week placebo-controlled trial found that participants who consumed Lion’s Mane showed significant improvements in cognitive function and memory recall [02]. Another study highlighted its ability to support hippocampal neurogenesis - the ability to produce new neurons in a part of the brain - reinforcing its role in preventing cognitive decline [03].
Beyond memory enhancement, Lion’s Mane has been linked to reducing symptoms of anxiety and depression. A clinical study showed that individuals who consumed Lion’s Mane for four weeks experienced a noticeable reduction in feelings of stress, irritability, and anxiety [04] [05]. Research suggests that these effects may be due to its ability to enhance neurotrophic pathways and reduce inflammation in the brain.
Given its powerful neuroprotective properties, Lion’s Mane is an excellent natural supplement for anyone looking to support brain health, improve focus, or reduce stress-induced cognitive decline.
References
[01] “Hericenones and erinacines: stimulators of nerve growth factor (NGF) biosynthesis in Hericium erinaceus”
Published in: Mycology, https://www.tandfonline.com/doi/full/10.1080/21501201003735556
[02] “Improvement of cognitive functions by oral intake of Hericium erinaceus”. Saitsu et al. (2019).
Published in: Biomedical Research (Tokyo)., https://pubmed.ncbi.nlm.nih.gov/31413233/
[03] “Hericerin derivatives activate brain pathways that improve memory”. Martínez‐Mármol et al. (2023).
Published in: Journal of Neurochemistry., https://pubmed.ncbi.nlm.nih.gov/36660878/
[04] “Lion’s Mane reduces depression and anxiety”. Nagano et al. (2010).
Published in: Biomedical Research, https://pubmed.ncbi.nlm.nih.gov/20834180/
[05] “Therapeutic Potential of Hericium erinaceus for Depressive Disorder“ Chong et al. (2019).
Published in: International Journal Of Molecular Sciences, https://pubmed.ncbi.nlm.nih.gov/31881712/
Reishi, often called the “mushroom of immortality,” has long been used in traditional Chinese medicine for promoting relaxation, improving sleep, and reducing stress. Scientific studies now confirm that its active compounds, including triterpenoids and polysaccharides, have a profound impact on the nervous system and the body’s ability to manage stress [06].
A growing body of research supports the use of Reishi for improving sleep quality and reducing insomnia. A study examining the effects of Ganoderma lucidum spore extract on sleep disturbances in a rat model of Alzheimer’s disease showed that supplementation significantly improved total sleep time, REM sleep duration, and sleep efficiency [07]. Further research has demonstrated that Reishi promotes GABAergic activity, which helps calm the nervous system and support restful sleep [08].
Beyond sleep, Reishi is also effective in reducing stress and anxiety. Studies indicate that it helps lower cortisol levels, the body’s primary stress hormone, allowing for improved relaxation and mental clarity [06]. Additionally, its neuroprotective and anti-inflammatory properties make it a valuable supplement for long-term brain health and cognitive function.
For individuals struggling with poor sleep, high stress levels, or frequent anxiety, Reishi offers a natural and effective way to promote relaxation and overall well-being.
References
[06] “Triterpenoids and polysaccharide peptides-enriched Ganoderma lucidum: a randomized, double-blind placebo-controlled crossover study of its antioxidation and hepatoprotective efficacy in healthy volunteers” Chiu et al (2017)
Published in: Pharmaceutical Biology, https://pubmed.ncbi.nlm.nih.gov/28183232/
[07]“Reishi extract improves sleep in an Alzheimer’s disease model”. Qin et al. (2024).
Published in: Frontiers in Pharmacology, https://pubmed.ncbi.nlm.nih.gov/38720773/
[08] “Efficacy of Ganoderma lucidum as a natural sleep promoting agent” Rahman (2024)
Published in: Journal of Psychology Research and Cognition, https://www.researchgate.net/publication/387504072_Efficacy_of_Ganoderma_lucidum_as_a_natural_sleep_promoting_agent
Cordyceps has gained attention for its ability to enhance energy levels, improve athletic performance, and support endurance. This mushroom is known for its role in boosting ATP production, the primary energy source in our cells, leading to greater stamina and reduced fatigue [09].
The same study on Cordyceps militaris demonstrated that three weeks of supplementation significantly improved VO₂ max (oxygen uptake), increased time to exhaustion, and enhanced ventilatory threshold, leading to greater tolerance for high-intensity exercise. These effects suggest that Cordyceps is not only beneficial for endurance athletes but also for individuals looking to increase their overall energy levels and physical performance.
Scientific studies have shown that Cordyceps can enhance oxygen utilisation and improve exercise performance. A separate placebo-controlled trial examined the effects of Cordyceps sinensis (Cs-4) on exercise performance in older adults. After 12 weeks of supplementation, participants experienced a 10.5% increase in metabolic threshold and an 8.5% increase in ventilatory threshold, allowing them to exercise at a higher intensity with less fatigue [10].
Cordyceps has also been found to reduce oxidative stress and inflammation in the muscles, which contributes to faster recovery after exercise [09] [11]. This makes it an ideal supplement for both athletes and individuals seeking sustained energy throughout the day without the crash associated with stimulants.
References
[09] “Cordyceps militaris improves tolerance to high-intensity exercise.” Hirsch et al. (2017).
Published in: Journal of Dietary Supplements, https://pmc.ncbi.nlm.nih.gov/articles/PMC5236007/
[10] “Effect of Cordyceps sinensis on exercise performance in healthy older adults” Chen et al. (2010).
Published in: The Journal of Alternative and Complementary Medicine, https://pmc.ncbi.nlm.nih.gov/articles/PMC3110835/
[11] “Enhancement of ATP generation capacity, antioxidant activity and immunomodulatory activities by Chinese Yang and Yin tonifying herbs” Ko & Leung (2007)
Published in: Chinese Medicine, https://pmc.ncbi.nlm.nih.gov/articles/PMC1847515/
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