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Nootropics

Prevagen vs Aricept (Donepezil) What to Choose?

By Valentino M. · Updated August 10, 2026 · 6 min read
prevagen vs aricept (donepezil)
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Please read this firstThis is not medical advice. Supplements interact with prescriptions and with each other, and "natural" does not mean "safe for you". Talk to your doctor or pharmacist before starting anything new — especially if you take blood thinners, antidepressants, or blood-pressure medication.

Prevagen vs Aricept (aka, Donepezil) – which one is better for brain function? Just to make it clear from the start, Prevagen is a dietary supplement that’s available to buy over the counter.

It’s available online and in some food stores, and comes in two different versions: ‘regular strength’ and ‘extra strength’. Both variants come in 30-capsule bottles.

Aricept, on the other hand, is a medication that you can only get via a doctor’s prescription. It’s designed to help fight memory loss, lack of focus, and other symptoms of cognitive decline.

But which one of these is better for memory and cognitive function? Are they safe? And how do they compare to our current best rated natural brain supplements? Let’s start looking closer at both of these products to learn more.

Prevagen Overview

Produced by a Wisconsin-based company Quincy Bioscience. Prevagen belongs to a class of supplements called ‘nootropics,’ which is another name for natural brain supplements.

You can think of nootropic supplements as a mental equivalent of a multivitamin. A good nootropic supplement provides certain nutrients – antioxidants, herbs, vitamins, minerals – that help improve different aspects of your cognitive function.

Prevagen, specifically, claims to enhance your:

  • Memory
  • Word recall
  • Learning
  • Sleep

While it doesn’t exactly state it anywhere, it’s clear Prevagen targets older demographics and people who’re looking to maintain a youthful brain. One thing I didn’t like is that Prevagen’s makers have been sued for false marketing claims by Federal Trade Commission.

Prevagen’s main ingredient – a jellyfish protein – is what’s behind the controversy. It’s heavily marketed and claimed to give you all sorts of benefits, some of which are questionable. Below you’ll see what I mean.

leading top brain supplements

 Aricept Overview

Aricept or Donepezil is a medication that improves function of nerve signaling in your brain. How does it work, you ask? It increases the levels of acetylcholine in your brain.

People with low acetylcholine levels typically suffer from memory loss and dementia. Therefore, keeping the levels of this critical neurotransmitter healthy will help you remember things better.

Aricept is used in patients with dementia and mild to moderate Alzheimer’s. It’s not a cure for any of these conditions, but rather, helps to fight their symptoms. But Aricept also comes with a number of downsides, which I’ll cover below.

Head to headPrevagen vs AriceptThese are not the same category of thing, and the comparison only makes sense once that is clear.
PrevagenAricept (donepezil)
What it isA supplementA prescription medicine
Ingredients2One active drug
Bottle30 capsulesPrescribed course
PriceAround $40Depends on prescription and cover
Who decidesYouYour doctor

Bottom line: A supplement is not an alternative to a prescribed medicine, and nothing on this page should be used to stop or replace one.

READ: My full Mind Lab Pro review

The Ingredients

Prevagen Ingredients

Prevagen contains two active ingredients, and a bunch of ‘other’ filler ingredients which don’t do anything. The active ingredients are vitamin D and Apoaequorin.

  1. Vitamin D is a nutrient we get from sunshine and foods like fatty fish. It’s not only essential for your brain but also physical health. However, unless you’re getting 20 minutes of direct sunlight every day, it’s unlikely you’re getting optimal levels of this vitamin. So supplementation is a good idea.
  2. The other ingredient in Prevagen is Apoaequorin. It’s basically a protein that’s sourced from glowing jellyfish, and is rumored to help improve signaling between your brain cells – leading to clearer thinking and better memory.

Looking at Prevagen’s marketing, you’d think this is a kind of a miracle ingredient. But the actual science says otherwise – so far, there’s no concrete proof that Jellyfish protein can do anything for our brain.

Aricept Ingredients

Aricept’s active ingredient is Donepezil. As you’ve seen above, it’s used to help treat dementia. Some early evidence suggests that it also might boost cognition in healthy people.

Aricept works by inhibiting the enzyme that destroys acetylcholine, a brain chemical that helps you remember and learn information.

However, the science is still not conclusive on how safe and reliable Aricept is. It’s a synthetic compound, one that can cause a number of side effects.

Natural alternatives are safer and more reliable. These include food supplements that help boost your acetylcholine levels naturally, resulting in better memory and focus.

My Thoughts on the Ingredients

I don’t currently rate either one as the best brain enhancer right now. Prevagen only has two ingredients. One isn’t proven to work while the other is vitamin D which can’t do much on its own. Plus, it’s cheaper to get vitamin D as a standalone supplement if you can’t get it from food or sun

Aricept, on the other hand, should only be taken if your doctor told you so. Otherwise, it’s best to choose a natural alternative that works just as well, if not better, and doesn’t have any side effects.

-Click to See the Current Top Rated Brain Supplements-

>Top 3 Nootropic Stacks<

Side Effects

Prevagen only uses 2 ingredients, one of which (Apoaequorin) isn’t studied well enough to know how it works in humans. If you look at the user reviews and testimonials though, Prevagen appears to be a harmless product.

As for Aricept, it’s a bit different story. This synthetic  is known to cause a range of symptoms, including:

  • feeling unwell
  • appetite loss
  • weight loss
  • sleep problems
  • muscle cramps
  • tiredness
  • drowsiness
  • dizziness
  • weakness
  • shakiness (tremor)
  • itchy skin
  • nausea
  • vomiting
  • diarrhea

Contact your doctor immediately if you experience any of these side effects. Remember that this article isn’t medical advice. It’s for informational purposes only!

Which oneWhat to actually do
a doctor prescribed AriceptDo not swap it for a supplementThat is a conversation to have with them, not with a blog.
you are considering taking bothAsk a pharmacist firstInteractions are their job and the answer is free.
you are looking for general brain supportThat is the supplement questionAnd it is a different question from treating a diagnosis.

READ: Mind Lab Pro Dosage: When to Take It (and When Two Capsules Is Wrong)

Can You Take Prevagen and Aricept Together?

This is one of the more common questions I hear regarding Prevagen and Aricept. However, it’s a question you’ll need to ask your doctor. I am not a  medical professional and can’t offer you any advice in regards to this, unfortunately.

At a glancePrevagen, in three numbers
2Ingredients
30Capsules per bottle
$40Roughly, on Amazon and the official site

READ: How Long Does Mind Lab Pro Take to Work?

Price and Value For Money?

Prevagen’s price is around $40 on Amazon and the official website. It’s a disappointing value for money, considering that it only has one ingredient that works – a basic vitamin which you can get for a couple of dollars online.

Aricept’s price depends on your medical insurance plan and other factors. You can only get it via a doctor’s prescription! It’s not available OTC like Prevagen.

RELATED: The Three Best Brain Health Supplements on the Market

My Conclusion

I don’t currently rate Prevagen as one of the best brain supplements available. It’s missing some of the core ingredients, it costs a lot, and it isn’t backed by real science. In our opinion, Prevagen is a big letdown.

Aricept is a synthetic cure that you shouldn’t take without your doctor’s permission. It comes with a whole host of side effects and is not the safest and most reliable option for supporting your brain health. Just because it’s a pharmaceutical pill doesn’t mean it works flawlessly for everyone!

If you’re just looking to stay mentally sharp and support your brain health naturally, then be sure to check our top 3 supplements by clicking on the image below.


The 3 Best Brain Health Supplements

I’ve picked the top three leading nootropic stacks on offer right now to support your goals.


*Disclaimer: The information found on this page is not medical advice, nor should it be taken as such. This information is intended for educational purposes only and is not meant to substitute for medical care or to prescribe treatment for any specific health condition. 

Written by

Valentino M.

I'm Valentino. I started this site in 2021 after spending about eleven hundred dollars on nootropics in a single year and realising I couldn't tell you which ones had done anything. So I started keeping notes properly: one product at a time, four weeks minimum, same sleep and same coffee throughout, and a written verdict at the end whether or not it was interesting.

I'm not a doctor and I don't pretend the notes are a clinical trial — it's one person, and one person is a terrible sample size. What I can offer is that the label, the doses and the price are checked against the evidence every time, that nobody pays me to be positive, and that when a formula is underdosed I say so plainly.