Neither Neuriva nor Prevagen has strong clinical evidence showing it meaningfully improves memory or cognitive function in healthy adults. Both supplements have faced legal challenges over their advertising claims, and independent reviews of their key ingredients raise serious questions about whether either product works as marketed. If you’re trying to choose between them, understanding what’s actually in each one and what the science says will help you make a more informed decision.
What’s in Each Supplement
Neuriva’s formula contains two active ingredients: 100 mg of whole coffee cherry extract and 100 mg of phosphatidylserine. Coffee cherry extract is derived from the fruit surrounding the coffee bean, not the bean itself. Phosphatidylserine is a fatty substance found naturally in cell membranes, particularly in the brain, where it plays a role in cell signaling.
Prevagen’s sole active ingredient is apoaequorin, a synthetic version of a protein originally found in a species of jellyfish. The protein naturally binds to calcium, and Prevagen’s manufacturer claims this calcium-regulating function supports brain health. Some versions of Prevagen also include vitamin D.
The Evidence for Coffee Cherry Extract
The main claim behind coffee cherry extract is that it raises levels of a protein called brain-derived neurotrophic factor (BDNF), which supports the growth and survival of brain cells. One earlier study did find that 100 mg of whole coffee fruit extract increased BDNF levels in blood plasma. That sounds promising, but higher BDNF in the bloodstream doesn’t automatically translate to better memory or sharper thinking.
When researchers actually tested whether coffee cherry extract improves cognitive performance, the results were disappointing. A randomized, double-blind, placebo-controlled crossover study published in 2023 found that coffeeberry extract at low or moderate doses had no effect on mood, mental energy, episodic memory, or performance on cognitively demanding tasks up to two hours after taking it. In fact, one measure of sustained attention actually got worse at the 60-minute mark compared to placebo.
The Evidence for Apoaequorin
Prevagen points to the Madison Memory Study as its primary evidence. This was a 90-day randomized, placebo-controlled trial involving 218 adults aged 40 to 91 who reported memory concerns. The study found that the group taking apoaequorin showed statistically significant improvements in verbal learning and recall compared to placebo.
However, those results come with a significant caveat. The overall comparison between the supplement group and the placebo group showed no difference. The positive findings came from subgroup analyses, which are smaller slices of the data that carry a higher risk of producing misleading results by chance. Multiple scientific reviewers and federal regulators have questioned whether this study actually demonstrates what Prevagen claims it does.
There’s also a more fundamental problem. Apoaequorin is a protein, and like most proteins you swallow, it gets broken down in your stomach and intestines into individual amino acids or short fragments. According to the National Institutes of Health, there is little evidence that apoaequorin survives digestion intact, and no good evidence it can cross from the bloodstream into the brain. If the protein never reaches your brain cells, the proposed mechanism for how it would help memory simply doesn’t hold up.
Both Products Have Faced Legal Action
Prevagen’s manufacturer, Quincy Bioscience, was sued by the Federal Trade Commission over deceptive advertising. After seven years of litigation that included a jury trial, a court ordered the company to stop making the misleading memory claims challenged in the lawsuit. The FTC announced this outcome in December 2024.
Neuriva’s manufacturer, Reckitt Benckiser, faced a class action lawsuit alleging false advertising about its brain health claims. An $8 million settlement was initially reached but later vacated by the Eleventh Circuit Court of Appeals on procedural grounds related to the plaintiffs’ legal standing, not because the court found the advertising claims were valid.
Neither company has been fully vindicated by the legal process. The pattern across both products is the same: marketing claims that outpace the supporting science.
How They Compare on Phosphatidylserine
One ingredient in Neuriva does have a somewhat stronger research foundation than anything in Prevagen. Phosphatidylserine has been studied more extensively for cognitive function, and the FDA allows a very limited qualified health claim stating that it “may reduce the risk of dementia in the elderly” and “may reduce the risk of cognitive dysfunction in the elderly.” The FDA itself has noted, though, that the evidence is limited and not conclusive. Most of the positive studies used higher doses (300 mg per day) than the 100 mg found in Neuriva.
Cost and Practical Differences
Prevagen tends to be more expensive than Neuriva, particularly its “Extra Strength” version, which can run $50 to $70 for a 30-day supply. Neuriva typically costs $25 to $40 for 30 capsules, depending on the version. Neuriva is labeled as vegetarian and GMO-free. Prevagen uses a lab-synthesized protein, so neither product contains common allergens like shellfish, despite Prevagen’s jellyfish association.
Both supplements are generally well tolerated. The Madison Memory Study reported that apoaequorin was well tolerated over 90 days, and no major safety concerns have been flagged for Neuriva’s ingredients at the doses used. That said, “safe to take” and “effective” are two very different bars to clear.
The Bottom Line on Choosing Between Them
If you’re picking between Neuriva and Prevagen specifically, Neuriva has a slight edge on paper. Its phosphatidylserine ingredient has a longer track record in research, even if the dose is lower than what most studies used. Prevagen’s core ingredient faces a basic biological hurdle: it likely doesn’t survive digestion, which makes its proposed brain benefits difficult to explain.
But “slightly less unsupported” is a low bar. Neither product has been convincingly shown in rigorous, independent research to improve memory or cognitive function in the general population. The money spent on either supplement could go toward interventions with far stronger evidence behind them: regular aerobic exercise, consistent sleep, a Mediterranean-style diet, and staying socially and mentally engaged. These aren’t as convenient as swallowing a capsule, but the science backing them is in a completely different league.