Lion’s Mane vs Prevagen is a comparison many people make when looking for supplements to support memory and cognitive health. While both are marketed for brain health, they are very different products, with different ingredients, proposed mechanisms of action, and levels of scientific evidence.

Lion’s Mane (Hericium erinaceus) is a medicinal mushroom with a long history of traditional use and growing scientific interest. Prevagen contains apoaequorin, a protein originally identified in jellyfish and marketed primarily for memory support.

So, how do Lion’s Mane vs Prevagen compare when it comes to scientific evidence, potential cognitive benefits, safety, and bioavailability? Let’s take a closer look.

Lion’s Mane vs Prevagen: What’s the Difference?

The most fundamental difference is what these two supplements contain.

Lion’s Mane is an edible and medicinal mushroom containing naturally occurring bioactive compounds. Researchers are particularly interested in compounds known as hericenones and erinacines and their potential effects on neurological health.

Prevagen is a branded dietary supplement containing apoaequorin, a calcium-binding protein originally identified in jellyfish.

Both products are promoted for cognitive health, but their proposed mechanisms and supporting research are quite different.

What Is Lion’s Mane?

Lion’s Mane is a distinctive white mushroom named for its long, cascading spines that resemble a lion’s mane.

It has a history of use as both a food and within traditional Asian medicine. It is known as Hou Tou Gu in Chinese and Yamabushitake in Japanese.

More recently, Lion’s Mane has attracted scientific interest because of its bioactive compounds and their potential effects on the nervous system, cognition, and brain health.

How May Lion’s Mane Support Brain Health?

Lion’s Mane contains several bioactive compounds, including hericenones and erinacines.

These compounds have been investigated for their potential influence on nerve growth factor (NGF) and other biological pathways involved in neuronal health. NGF is a neurotrophic factor involved in the growth, maintenance, and survival of certain neurons.

Preclinical research has also explored whether compounds found in Lion’s Mane may influence neuroplasticity, neuroinflammation, oxidative stress, and neuronal health.

These mechanisms are scientifically interesting, but it is important to distinguish between laboratory or animal findings and demonstrated clinical benefits in humans.

What Does the Research on Lion’s Mane Show?

Human research on Lion’s Mane is growing but remains relatively limited.

Small clinical studies have investigated its potential effects on cognitive function, mild cognitive impairment, mood, and neurological health. Some have reported improvements in certain measures of cognitive function among participants taking Lion’s Mane or standardized extracts.

However, studies have generally involved relatively small numbers of participants, different formulations and doses, and limited treatment periods.

Overall, the research is promising but preliminary. Larger, well-designed human clinical trials are needed to determine who may benefit, which formulations are most effective, and what doses are appropriate.

What Is Prevagen?

Prevagen is a dietary supplement marketed primarily for memory and cognitive support.

Its principal active ingredient is apoaequorin, a calcium-binding protein originally identified in jellyfish.

The theory behind Prevagen is based partly on the role of calcium regulation within cells, including neurons.

How Is Prevagen Supposed to Work?

Calcium plays an essential role in normal neuronal signaling, while abnormal calcium regulation has also been investigated in relation to cellular aging and neurological disease.

Apoaequorin binds calcium, leading to the hypothesis that it might help regulate calcium signaling within neurons.

However, an important question is whether orally consumed apoaequorin can reach the brain in a biologically active form. Because apoaequorin is a protein, it would generally be expected to undergo digestion within the gastrointestinal tract.

This has contributed to questions about its bioavailability and proposed mechanism when taken orally.

What Does the Research on Prevagen Show?

The evidence supporting Prevagen’s cognitive benefits is limited.

One frequently cited study is the Madison Memory Study, which evaluated apoaequorin supplementation in adults with self-reported memory concerns. Questions have been raised about the study’s methodology, statistical analyses, and interpretation of the findings.

Much of the research supporting Prevagen has also been associated with its manufacturer rather than independently replicated by multiple research groups.

More high-quality, independent research is needed to establish whether oral apoaequorin provides clinically meaningful benefits for memory or cognitive function.

Lion’s Mane vs Prevagen for Cognitive Health

When comparing Lion’s Mane vs Prevagen for cognitive health, one of the most important differences is the nature and extent of the available scientific evidence.

Neither supplement should be considered a proven treatment for cognitive impairment, dementia, or Alzheimer’s disease.

Lion’s Mane has a broader body of preclinical research investigating neurological mechanisms, along with several small human studies examining cognition and memory.

Evidence supporting Prevagen is more limited, with questions surrounding the quality, independence, and interpretation of some of the available research.

For both supplements, more rigorous human clinical trials are needed.

Lion’s Mane vs Prevagen: Safety and Side Effects

The safety considerations for Lion’s Mane vs Prevagen differ because the products contain fundamentally different ingredients.

Lion’s Mane

Lion’s Mane appears to be generally well tolerated by many people, but it may not be appropriate for everyone.

Potential concerns include gastrointestinal symptoms and allergic reactions, particularly in people sensitive to mushrooms. There are also questions about possible effects on blood glucose and blood clotting.

Individuals taking medications, particularly those affecting blood glucose or coagulation, should discuss supplementation with an appropriately qualified healthcare professional.

Prevagen

Reported adverse effects associated with Prevagen have included symptoms such as headache, dizziness, and nausea, although determining causality from adverse-event reports can be difficult.

Information about long-term use and medication interactions remains limited.

As with any dietary supplement, individuals taking medications or managing medical conditions should discuss its use with their healthcare provider.

Lion’s Mane vs Prevagen: Bioavailability Matters

Bioavailability refers to the extent to which a substance or its active compounds can be absorbed and become available to exert a biological effect.

This is an important consideration when comparing supplements.

Lion’s Mane

The composition of a Lion’s Mane supplement can vary considerably depending on:

• Whether it contains fruiting body, mycelium, or both
• Growing substrate
• Extraction and processing methods
• Standardization
• Concentration of beta-glucans and other compounds

This means two products labeled “Lion’s Mane” may not necessarily be equivalent.

The specific compounds being studied also matter. Hericenones and erinacines are not distributed identically throughout all parts of the mushroom, making product formulation particularly relevant when interpreting research.

Prevagen

Bioavailability is an important question surrounding apoaequorin.

Because apoaequorin is a protein, questions have been raised about whether it can survive digestion, enter systemic circulation in a biologically meaningful form, and ultimately exert the proposed effects within the brain.

These questions are important when evaluating the biological plausibility of an orally consumed supplement.

Choosing a Quality Lion’s Mane Supplement

If you are considering Lion’s Mane, product quality deserves careful attention.

Mushroom supplements can differ substantially in how they are grown and processed. Factors to consider include:

• Fruiting body versus mycelium content
• Growing substrate
• Organic certification
• Extraction method
• Beta-glucan content
• Independent testing for contaminants
• Transparency regarding sourcing and manufacturing

The substrate used to cultivate mushrooms may also influence the composition and quality of the finished product.

For a deeper look at mushroom quality and cultivation, read more about why organic substrates matter in mushroom cultivation and what to consider when evaluating mushroom supplements.

Can Lion’s Mane or Prevagen Prevent Dementia?

At present, neither Lion’s Mane nor Prevagen should be considered a proven strategy for preventing or treating Alzheimer’s disease or other forms of dementia.

Brain health is influenced by many interconnected factors, including cardiovascular and metabolic health, physical activity, sleep, nutrition, hearing, social engagement, mental stimulation, genetics, and other medical conditions.

Supplements are one area of scientific investigation, but they should not replace evidence-based approaches to reducing modifiable risk factors or appropriate medical evaluation.

New, persistent, or progressive changes in memory or cognition should always be evaluated by a qualified healthcare professional.

Lion’s Mane vs Prevagen: The Bottom Line

When considering Lion’s Mane vs Prevagen, the two supplements differ substantially in their ingredients, proposed mechanisms, and supporting evidence.

Lion’s Mane has a long history of traditional use and a growing body of preliminary research investigating its potential effects on cognitive function and neurological health. However, much of the research remains early-stage, and larger, well-designed human clinical trials are still needed.

Prevagen contains apoaequorin and is marketed primarily for memory support. Evidence supporting meaningful cognitive benefits remains limited, with questions surrounding the independence and interpretation of some of the available research and the bioavailability of orally consumed apoaequorin.

Neither supplement should be considered a proven treatment for cognitive impairment, Alzheimer’s disease, or other neurodegenerative conditions.

Ultimately, supplement choice should consider the quality of the evidence, product formulation, individual health history, medications, potential risks, and product quality.

Supporting long-term cognitive health also requires looking beyond a single supplement. Regular physical activity, quality sleep, cardiovascular and metabolic health, good nutrition, social connection, and ongoing cognitive engagement all contribute to a more comprehensive approach to brain health.

References

• Elkhateeb, W., Daba, A., Thomas, P., & Wen, T. C. (2021). Lion's Mane Mushroom, Hericium erinaceus (Bull.: Fr.) Pers., and Its Active Compounds: A Review of Their Biomedical Implications. International Journal of Medicinal Mushrooms, 23(1), pp. 1-12. Federal Trade Commission (FTC). (2020). FTC and New York Attorney General Charge the Marketer of Prevagen with Making Deceptive Memory, Cognitive Improvement Claims. Available at: https://www.ftc.gov/news-events/press-releases/2020/01/ftc-new-york-attorney-general-charge-marketer-prevagen-making [Accessed 30 June 2024].
• Friedman, M. (2019). Chemistry, Nutrition, and Health-Promoting Properties of Hericium erinaceus (Lion's Mane) Mushroom Fruiting Bodies and Mycelia and Their Bioactive Compounds. Journal of Agricultural and Food Chemistry, 67(3), pp. 613-629.
• Lai, P. L., Naidu, M., Sabaratnam, V., & Wong, K. H. (2021). Hericium erinaceus (Yamabushitake): A Systematic Review of Its Traditional Uses, Pharmacology, and Toxicity Data. Frontiers in Pharmacology, 12, 682636.
• Lerner, I., Kaye, A. M., Kaye, A. D., & Renschler, J. S. (2020). Apoaequorin and Memory: Claims and Controversy. Psychiatric Annals, 50(5), pp. 204-208.
• Mayo Clinic. (2021). Prevagen: A Review of Its Use and Effectiveness. Available at: https://www.mayoclinic.org/tests-procedures/prevagen/about/pac-20385297 [Accessed 30 June 2024].
• Mori, K., Inatomi, S., Ouchi, K., Azumi, Y., & Tuchida, T. (2019). Improving Effects of the Mushroom Yamabushitake (Hericium erinaceus) on Mild Cognitive Impairment: A Double-Blind Placebo-Controlled Clinical Trial. Phytotherapy Research, 23(3), pp. 367-372.
• Quincy Bioscience. (2009). Madison Memory Study. Available at: https://www.prevagenpro.com/clinical-research [Accessed 30 June 2024].
• Ryu, S. H., Lee, S., Kim, K. S., & Kim, S. H. (2019). Bioavailability of β-Glucan and Its Absorption-Enhancing Mechanism of Hericium erinaceus Mycelium Extracts. International Journal of Biological Macromolecules, 139, pp. 654-661.
• Wang, J., Zhao, Y., Wang, X., & He, Y. (2020). Hericium erinaceus (Lion's Mane Mushroom) Improves Memory by Promoting Neuronal Regeneration in Mice. International Journal of Molecular Sciences, 21(8), 2738.
• Zhang, J., An, S., & Xu, J. (2020). Bioactive Components of Hericium erinaceus and Their Medicinal Value. Journal of Functional Foods, 64, 103654.