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Prevagen for Memory? -- bottle of Prevagen

Answer:

According to the Prevagen website, "Prevagen is an over-the-counter supplement for healthy brain function and memory improvement." A disclaimer indicates that these statements are "Based on a clinical study of subgroups of individuals who were cognitively normal or mildly impaired." Its package also claims that Prevagen supports "healthy brain function, sharper mind, and clearer thinking."

However, as discussed below, concerns have been raised about the quality of the evidence used to support these claims, as well as previous claims Prevagen might treat Alzheimer's disease or other conditions, including a recent lawsuit.

Sign in as a member to learn more about the clinical evidence for and against Prevagen, safety and side effects, details about warnings and legal action taken against the makers of Prevagen, and details about legal action taken by Amazon and the makers of Prevagen and against sellers of counterfeit Prevagen.

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86 Comments

Stacy22514
April 14, 2025

Some Medicare Advantage Plans include a quarterly OTC allowance. The insured is given a catalogue from from which to pick the "free" products, available at nearby plan pharmacies or via mail order.

In addition to what one might expect- cough drops, eye drop, toothpaste, ear wax et al- Prevagen is on the list of available choices.

Paul22478
April 08, 2025

If we muted our televison for every lie, there would be NO television.

Gary21422
December 13, 2024

Based on my own observations of the jellyfish in my aquarium, none of them could ever remember when and where I put their food. Wasn't that a pretty good clue?

Lisa22474
April 08, 2025

Thanks for the laughs!

genina22484
April 09, 2025

Cute!! 😆

Maureen23184
June 30, 2025

LMAO!

Douglas21419
December 13, 2024

I remember (without Prevagen) that prior to the original round of government actions and court decisions their commercials showed a straight line graph of increasing dose leading to increasing memory benefits. Afterwards, Quincy switched to the 'testimonial' ads, which I guess the company thought were defensible since it was these 'everyday, ordinary people' making the claim, not the company. I have no doubt that they will adapt to the latest rulings and we can look forward to a new dose of commercials.

Kaye21447
December 16, 2024

The newer commercials with testimonials now seem to tout personal benefits using more vague language and also show more prominently that the "featured users" are paid for endorsing the drug. Earlier ads did not do this.

Douglas21414
December 13, 2024

I am a senior neuropsychologist and I've spent roughly 40 years reviewing and summarizing the research on neurodegenerative disorders. Prevegen struck me as a scam from the get-go with claims that made no sense, particularly the idea that it was modulating calcium channels, as virtually any proteins ingested into the G.I. tract will get broken down unless it is protected against stomach acid and enzymes.

jack21413
December 13, 2024

Finally! Let's hope this one sticks.

Barbara21410
December 13, 2024

This supplement makes me cringe everytime it is advertised.

Kaye21446
December 16, 2024

Me, too! Thanks, Barbara!

Glyn21689
January 19, 2025

And me too!

Megan20032
July 16, 2024

Why I am grateful for consumer lab!

Marilyn20020
July 15, 2024

Every time I see this commercial I lose it- I mute it.

Christine20725
September 28, 2024

Me too. Makes me crazy they're still allowed to advertise!

Teresa19987
July 12, 2024

I am glad I have Consumer Lab but how many are wasting their money & risking health issues because they don't know about court's decision??? PREVAGEN OWES THE PUBLIC THE TRUTH IN PLAIN LANGUAGE.

Denise19247
April 10, 2024

A few years ago, I worked in a drugstore that sold Prevagen. A customer came in one day to buy a bottle of it. When he came to the register to check out, I asked him, "Didn't you just buy a bottle of this last week?" He answered, "Yes, but I forgot where I put it." I answered him with a smile, "Well, I can see how this is working out well for you." lol

John19930
July 05, 2024

That's hilarious! Thanks for sharing.

Chris20016
July 14, 2024

That reminds me. I've always had a bad memory. As a young man, I took a memory course. The trouble with the course was that it didn't have any instruction on how to remember the course. I soon forgot it.

Richard20897
October 15, 2024

I think Christopher got it right. I'll be 82 shortly and can't remember forgetting anything?

Jeri19088
March 25, 2024

What's really sad about this is that the people who think they are starting down the path of cognitive decline are scared and willing to do anything to slow or prevent the progression. Grateful for ConsumerLab.com - you're all we have right now, as far as I know.

drb
March 19, 2024

What is not clear to me is how Prevagen can continue to be marketed in the way that it is, with testimonials from individuals used to confirm the claimed positive benefits for memory and cognitive functioning. Of course, testimonials do not amount to valid proof no matter how much we may use customer reviews that appear online for various products to help us in our buying decisions. The TV ads for Prevagen have very small print at the bottom that says that the positive findings were in people with normal memory or mild cognitive impairment, but as Consumer Lab is documenting, even that almost impossible to notice or read disclosure is false and unsupported by any valid research. How can Prevagen still be marketed or sold? It seems that there is no real enforcement mechanism for false advertising, and placebo effects always will make some people think the snake oil actually works.

Kirk VandenBerghe
March 24, 2024

Well said.

Dave Sandlund
July 12, 2024

Yes she/he took some thought for that one.

Jeanette20503
August 26, 2024

We cannot believe most current advertising. What ever happened to "truth in advertising?" This is why I go to Consumer Lab.

gary18981
March 19, 2024

Every time I hear that commercial on the radio I rush to change the channel! A classic ripoff of people who believe in unproven supplements. Try organic whole food diet and exercise they really work. Study nutrition, trash the junk foods and ultra processed food, loose weight, get aerobic and goodluck.

Lisa19956
July 08, 2024

Totally agree, very well said!

MICHAEL L18692
February 11, 2024

Well, I'm happy to say that it has seriously improved, uhm, that is, er, uhmmm...what were we talking about??

Pantilima
March 19, 2024

😆😆😆

Pantilima
March 19, 2024

Excellent! :-)

Peter18983
March 19, 2024

A.....er...ah....mmmm...men, Amen!

Raymond18987
March 19, 2024

good one!

Kathryn19081
March 24, 2024

I don't know.......I forgot

Michael3237
March 28, 2023

Consumer Lab is THE authority. Absolutely no nonsense here.

Robert3238
September 06, 2023

agree 100%...

James19074
March 24, 2024

I take Consumer Lab to be the Authority on all vitamins because of thorough unbiased investigations!

Josefina R3234
October 25, 2022

I can’t stand hearing about this product when I’m watching Jeopardy!

philip3235
November 07, 2023

:)

MARCIA19023
March 20, 2024

😤😢😵

Gerald3228
March 08, 2021

Every time I hear about this kind of product and the claims of its manufacturer, the first thing I think of is the medicine wagons of the old west. Uncle Joe's elixir that cures everything and was about 99.5% alcohol. I guess if you buy it and get hammered, you will feel better for a while. A good example would be "I love Lucy selling Vitameatavegamin". Check Youtube.
The other thing I vividly remember is an anti-obesity product called "Fen-Phen" that the FDA banned because it was linked to irreversible heart valve damage and primary pulmonary hypertension.
My takeaway is, do a lot of research and continue your ConsumerLab membership (to help with the research) before you jump on one of these bandwagons.

Jane3229
March 28, 2023

Prevagen = seizure
5 years ago I was taking Extra Strength Prevagen for ~3 months. I experienced short moments of 'staring' (5-10 seconds) that I could not get out of, so I just stared. It turned out I was experiencing petit mal seizures. I didn't corelate the staring with Prevagen. I chalked it up to eye strain or being tired. Then the big one, I was driving down I-94 going 70 when I had a grand mal seizure. Luckily I didn't hurt anyone else, but I totaled my car and ended up in the ICU for 2.5 days (I'm fine now). I had to see a neurologist and we determined that the seizures were most likely caused by Prevagen (based on the timeline of first taking it and the start of the petit mal seizures). Unfortunately, I didn't save my store receipts as proof of purchase and there is no blood test to take to prove Prev was the cause, but I know it was. I lost my drivers license for 3 months (standard practice after a seizure) and my private pilots license for 4 years. BE CAREFUL, I URGE YOU TO TRY SOMETHING ELSE.

Barbara18986
March 19, 2024

I took it a while back for about a week and I couldn’t figure out at first why i felt like i was going to have a stroke. The headache that I had was horribly unique as I figured out later that the few random days that i took it earlier, i felt the same way. Once I figured it out and stopped taking it, the stroke like headache went away thankfully. There was a weird ache running between my head and heart. Very hard to describe. Horrible stuff. I have no interest in competing products., I’m just stating my experience.

Susan3225
March 06, 2019

We were able to get at wholesale (through a close friend who has a Health Food Store) the 2X form of Prevagen. We spent hundreds of dollars (no typo) on Prevagen and found it did Not work for increasing memory.
What did work is Vinpocetine in 2.5 mg tabs. 5 mg gave tachychardia.
Huperzine does work--But, in any amount over 50 mcg (micrograms) it causes the hair to fall out of the head. And, it doesn't grow back! There are a lot of irresponsible formulator/manufacturers that haven't done enough research to find the negatives of Huperzine (same with Vinpocetine).
Currently, we're using PQQ (40 mg daily from Now Foods with 200 mg Alpha Lipoic Acid in capsule). Haven't found a big increase in memory. However, we did notice an increase in memory after two weeks use, when we took 60 mg daily of the straight PQQ (got from HF Store owner).

ConsumerLab.com
March 06, 2019

Hi Susan - Thank you for sharing your experience with this. You can find more information about huperzine A and our tests of products in our Huperzine A Supplements Review: https://www.consumerlab.com/reviews/huperzine-a-supplements-review/huperzine-a/.

You may also be interested our CL Answers about Procera (which contains vinpocetine and huperzine A) and PQQ:

https://www.consumerlab.com/answers/does-procera-avh-really-improve-memory-and-mood/procera-avh/

https://www.consumerlab.com/answers/is-pqq-similar-to-coq10/what-is-pqq/

Sandy3227
March 29, 2023

In 2004 when after returning from a plane trip I had sudden sensorineural hearing loss (pitch perception distortion discrepancies between both ears and severe tinnitus), my neurotologist claimed "you're a musician, you're just too picky about pitch" and refused to do anything when my brain MRI came back normal. My family shrink suggested I contact an audiology professor at the Cleveland Clinc. He suggested I try to retrain my brain by selective listening via headphones to various pieces while sitting & lying in various positions; and to also read an article in the Lancet (or Nature, I forget which). The article, about sudden sensorineural hearing loss, reported on a protocol of low dose vinpocetine, manganese, ginkgo biloba, alpha-lipoic acid along with a 6-day dosepack of prednisone started no later than 28 days after onset. On day 27 I nagged my neurotologist into writing the prednisone Rx, and I started those supplements that day. 3 days later, my hearing normalized to the point where I could perform and tolerate hearing unamplified string instruments again. Whenever I started to perceive a bass or guitar being out-of-tune compared to vocals or the other instruments on a recording, I'd take the manganese (10 mcg) and my pitch perception normalized again. Hasn't happened in 18 years!
BTW, vinpocetine is extracted from the vinca flower, aka periwinkle--which is also the source of the chemo drug vincristine (which can harm hearing). 2 very different sides of the same coin.

JADE3224
March 06, 2019

I took the Extra Strength Prevagen about 3-4 years ago. After the end of the second week, one afternoon after waking from a nap, when I tried to sit up the left side of my body involuntarily fell back to bed. I didn't think much of it so I sat up again, but the same thing happened. I started to get worried so I tried to get up again, slower this time, and yet again fell to my left side. I waited a few minutes before trying once more, and thankfully this time I was able to sit up without falling back down.
I slowly crept over to the edge of the bed so I can rest my feet to the floor. I was able to, but by this time I started to feel very nauseated and was perspiring heavily. Sweat started to drip down my face and I have never been more scared since I didn't know what was happening to me. I was alone at the time too. After feeling slightly better after several minutes of what felt like more, I got up and after a few feet of walking ever so slowly I started to experience vertigo (this was a first for me, just as the rest of this experience was). Then moments later I don't remember for how long, I felt better and was able to walk normally and the nausea feeling was gone.
I put the blame on the Prevagen I was taking as it was the only new supplement I've been taking at the time; not sure if I had a mini-stroke or not. I was 44-45 years old at the time.

Roberta3221
March 06, 2019

As an FTC investigator in my early career and after reading the comments about Prevagen, I urge those who posted their experiences to follow up with reports to the agency and the FDA if they have not done so already. I also hope that Consumer Lab is proactive in reporting its test results to these agencies.
It is nothing less than a cruel hoax to misrepresent the product in the manner it is portrayed in the t.v. commercials, especially if consumers delay or choose to opt out of seeking appropriate medical testing as a result. These agencies have the power to order the company to "cease and desist" from making false claims following their investigations and have the authority to impose fines. Customer experiences form the basis for initiating investigations leading to remedial measures in the public interest.

ConsumerLab.com
March 06, 2019

Hi Roberta - Thank you for sharing your experience with this. Just to clarify, ConsumerLab has not tested this product.

Helen3215
December 05, 2018

Instead of prevagen and other proprietary mixes, I suggest to every friend that they consider citicoline. There is a ton of research on this inexpensive substance, which maintains the myelin sheath of neurons. It is obviously neither a miracle nor an instant fix. A difference in memory takes a few months to show. But it is spectacular for visual acuity, and I noticed its effects without knowing that in advance. (search for citicoline, acuity, strabisums). Italian doctors told me to do 3 months off and 3 months on, but a month later, my visual acuity goes down. On the advice of an indonesian doctor, I will not stop it from now on.
Citicoline is inexpensive, buy 500 mg capsules of reputable companies (see consumer lab report).
The other substance to consider is the systemic anti-inflammatory palmitoylethanolamide. it's unknown in the US, please look up the many European studies on it. Some memory symptoms are due to inflammation. I have asked consumerlabs repeatedly to review it, but I have gotten no response.

ConsumerLab.com
December 05, 2018

Hi Helen - Citicoline is the same as CDP-choline, cytidine diphosphate-choline, and Cognizin. We have tested and reviewed it our Choline Supplements Review and identified our Top Pick among such supplements. See the Review at https://www.consumerlab.com/reviews/choline-review/choline/ . Palmitoylethanolamide, abbreviated as PEA, is being sold as a supplement by some companies now. We will be looking into it. Thanks for the suggestion.

Dennis3214
August 05, 2018

I was part of double-blind study for this product. over a 12 week period I was sent pills to take at bedtime, then I answered questions via computer on what I experienced. I only experienced very vivid dreams with the product. no mental sharpness, no memory increase. at the end of the 12 weeks I was asked if I wanted to purchase the product. in light of the minimal results, I declined. they offered no discount on purchase. just one persons opinion. GF

margaret3212
January 05, 2018

I use it now and again. I think it works and I believe that a neighbor of mine had extremely good results although he did die of Alzheimer's at thew age of 94. Try it before you dis it.

Craig3213
May 11, 2018

The problem with ancedotal stories like that of your neighbhor is that they are not valid evidence. I know a 94 year old still alive and well, that is still sharp, lives independently, still drives, exercises 3 times a week, walks daily, has an active social life and that person has NEVER taken Prevagen.

So, your example, my counter example. Stories back and forth. Not remotely objective evidence of anything.

When a company makes extraordinary claims, there should be extraordinary evidence. Make no doubt, the idea that apoaequorin, a 22,885 Dalton foreign protein, can be ingested, survive the GI tract that is designed to destroy proteins into constituent amino acids, and then somehow be absorbed into the blood stream intact and not invoke a immune response, and then be shuttled across the blood brain barrier that does not allow the passage of molecules larger than around 400 Daltons without specialized mechanisms (what would be the evolutionary adaptation for such a mechanism to shuttle a protein from a biolumniscent jellyfish? ) to reach the neurons to sequester calcium, THAT is an extraordinary claim.

The actual evidence is not extraordinary. In fact, it essentially doesn't exists except in non-evidence ancedotes like yours. Consumer Lab has nicely laid that out. The only placebo-controlled double-blind study showed no really significant effect. Whatever effect in that one study was by no means extraordinary, and it was a company study with conflicts of interest.

In the 2010 U.S. patent "Method of treating ischemic injury with apoaequorin" obtained by Mark Underwood of Quincy Bioscience, apoaequorin was DIRECTLY INJECTED into the rats' brains after the researchers had intentionally induced an ischemic stroke. This is the companies claim to neuroprotective effects of apoaequorin.

The apoaequorin was injected directly into the hippocampus of the rat brain after the induced stroke. The hippocampus is a major component in your memory network. So if you just had a stroke and would allow someone to immediately directly inject Prevagen into your hippocampus deep in your brain through a needle in your skull, it might actually do something.

Ingesting a pill of it will just add a little extra protein to your diet.

It's amazing to me that FDA has been so timid about this product. Just shows it's not actual science that governs decisions but a completel legal mess.

Don3209
October 15, 2017

But their carefully constructed infomercials seem soooooo convincing! LOL.

sls1964
March 06, 2019

sadly, to desperate alzheimer's patients they do. and that is what the company counts on.

Rebecca3210
October 08, 2021

Susan, You are spot on. Truly, it is just not desperate Alzheimer's patients and their families who are afraid of cognitive decline of any sort. There is a large population of the elderly in the US today and they are frightened of "losing it". This is a matter of the fear of becoming dependent on someone else, either by physical handicaps and also by memory handicaps. Both are frightening to consider for folks who have been active, intelligent and useful all of their lives, many of whom are former professionals. When this starts to happen as we age of course our fear prompts us to look for a solution. These bright TV ads can lead us to try anything they are selling. The thought, "Might as well try it, what have I got to lose?", leads us the same way having a headache leads us to an aspirin. As an aging former RN one thing I have learned over the years is the very real knowledge that there is NO medical treatment that is risk- free, regardless of how innocent it appears. And this stuff is messing with your brain? Not for me.

Dennis3206
September 17, 2017

I participated in a clinical trial for this product. it lasted 6 months. what I had were vivid dreams. no clearer mind, no better memory. at the end of the study I was asked by the company if I wanted to purchase the product at a reduced cost. the reduction amounted to $5.00 less than priced online. no thank you. it wasn't that good. ga

Douglas3205
September 13, 2017

It's too early to say but is looking as though this could be the greatest biomedical scam in history, with the owners of Prevagen in a position to make many hundreds of millions of dollars in relationship to an initial stock offering. To say that the evidence is unimpressive is a severe understatement, as there really is no true evidence of efficacy, and even more, plenty of reason to be suspicious that the compound as it has been described could have ANY mechanistic impact on short-term memory or for that matter, even on neuronal function, although there is still much to learn on that question.

First of all, as others have pointed out, proteins are typically broken down G.I. tract, and even if they are not, they do not cross the blood brain barrier unless chaperoned in special ways by lipids or immune cells or blood brain barrier endothelial cells. There is no evidence for that either (transit across the blood brain barrier), and to make matters worse, there is no evidence that its putative mechanism, namely the rectification some kind of calcium channel dysfunction has any role in age-related short-term memory inefficiencies, or that blocking calcium channels would have any impact on patients with amnestic conditions – and indeed as others have pointed out, blocking calcium channels in a haphazard fashion might even be dangerous and could even lead to amnestic conditions, although excessive calcium channel activity can lead to programmed cell death.

In other words there is every reason to think that this is a billion-dollar scam unprecedented in the history of nutraceuticals. It's in a position to give every other responsible nutraceutical manufacturer a black eye by implication. As usual, the FDA's response is underwhelming when dealing with either pharmaceutical or nutraceutical firms that may be bad actors.

Marilyn21424
December 14, 2024

Honestly, I don't know how anybody could believe what this company says in its ads. I thought this company was prohibited years ago from advertising lies that this drug improves memory.

HR3203
September 13, 2017

I can only take Extra Strength Prevagen every other day as it gives me a headache taken daily.
Strontium is good for bones. since stopping calcium, I have taken Strontium. I can tell, by my better than ever fingernails, that it's working!

ConsumerLab.com
September 13, 2017

Thanks for sharing this HR. You can read more about strontium in this CL Answer: https://www.consumerlab.com/answers/do-any-supplements-help-prevent-or-treat-osteoporosis/osteoporosis/

Susan3202
August 16, 2017

After finding no improvement with the regular strength Prevagen, we bought the Extra Strength Prevagen when it was introduced. Among three unrelated people, no one noticed an improvement in memory. We did note a big loss of money on a product that we feel that the FTC should nvestigate. We feel it is more of a scam.

Robert3198
October 19, 2016

The problem is excess calcium. "Get your calcium" is wrong clinically 90% of the time based on over 3,000 HTMA results. Calcium should never be taken without a HTMA that confirms it is needed. Taking calcium to "prevent osteoporosis" is ineffective and proven to increases the risk of Cardiac events 22-30% in multiple studies, stroke 15-20%, kidney and gall stones, Macular degeneration, and is proven to shrink the brain and destroy the working memory cell function. "Get your calcium" is a major cause of dementia, proven.
Adequate trace mineral supplementation is required to prevent and treat and reverse osteoporosis. It is not a calcium deficiency, it is mineral deficiency always. In less than 10% of cases, calcium is also needed.
Robert Thompson, M.D. Co-author, The Calcium Lie 2

Jeanne3199
August 20, 2017

I agree completely Dr. Thompson. Well said.

Carole3200
October 01, 2021

Also, agree

Michael3194
April 03, 2016

I have taken this product on and off for over a year. I notice positive effects the most pronounced being, remembering my dreams. Before taking the product I had not recalled my dreams for years. I now recall them almost nightly. BTW a supplement does not have to reach the brain to have a positive effect. With everything they are learning about the Microbiome and how food and supplements effect the gut bacteria and how that bacteria effects our health. I to have no finical interest in this product other than wishing it cost less.

Helen3196
September 13, 2017

Whether you remembering your dreams or not depends on issues different than recall of encoded items in memory. Do a search, and you will see the relevant variables.

Marc3193
February 05, 2016

I give talks to health care professionals all over the US (nutritional effects on development in infants). It's because of reviews like this that I routinely recommend Consumerlab.com to anyone who takes dietary supplements and wants to know about their safety and efficacy, and I can cite examples (like this) where your thorough review of the evidence provides what one needs to know before using a dietary supplement.

Thank you,

Marc Masor, Ph.D.

Louis3189
November 05, 2015

I have taken the product and have some improvement in all areas, and experienced none of the alleged side affects. It is to expensive to continue on a regular basis.

Melanie3190
April 03, 2016

I also have taken Prevagen several years ago for about 6 months. I also noticed improvements but I stopped taking it because there was no information regarding the safety of the product at that time. I would really like to take it again except it is to expensive.

HR3191
September 13, 2017

I have bought it on Ebay,new and not expired, for about half price.

Richard19078
March 24, 2024

HR3191, Consider this from ConsumerLab...

Counterfeit Prevagen
November 07, 2023
Counterfeit versions of the “memory” supplement, Prevagen, have been sold on Amazon, according to a recently filed lawsuit. Also learn how to avoid counterfeits online.

Robert3188
August 09, 2015

Aequorin is a protein and will be hydrolyzed in the stomach. So negligible amount of intact protein will be absorbed into the body from the GI tract. Even if the protein was administered by injection it is unlikely that it could cross the blood-brain-barrier. If by any remote chance the protein does make it into brain cells, it could be neurotoxic by virtue of chelating calcium ions which are essential to cell function.
Robert C. Speth, Ph.D. I have no financial interest in this or a competing product

Nathaniel3181
April 15, 2015

Thanks for your useful info on this "memory aid." I was almost taken in by their commercials... until I though to look it up on your site. When I saw that there were adverse effects by a number of people, and that all the "studies" weren't 'blinded' or in peer reviewed journals, I felt I had the information I needed to decide not to part with a substantial amount of money for what I judged to be a dubious supplement.

don3182
September 13, 2015

Donald: My focus and recall {ESP.} names have gotten worse this last year. I am wondering if any supplements, vitamins or anything can help with memory? Would appreciate any advise or suggestions!!

violet3183
January 02, 2017

I have taken Prevagen since 2006. It works great. It took around 2 months for me to notice a difference in memory. I noticed that I could remember people's names, dates and etc.....When my memory got better I quit taking it until I noticed a decline again, and started taking it again. I don't have to take it all the time anymore, I see no need to continue taking a supplement once your problem has been reversed, I think that may be why people have problems with supplements, they get too much over a period of time. I would recommend Prevagen to anyone that is having problems remembering daily activities.

Chris3184
January 11, 2017

Without actual studies to review, this experience can easily be explained by the placebo effect.

Michael3185
October 15, 2018

Testimonials have their place and to ignore them is not using wisdom either. We must realize that studies take time and money. Often, small companies or individuals do not have the money to spend on statistically significant studies. Does this mean we should avoid these products? I say definitely no, but we should proceed with caution and evaluate the evidence and consider the source and the amount of positive and negative testimonies/evaluations. For example, CBD from Cannabis (Hemp as well as Marijuana) has been around for a several thousand years yet we know that its ability to help with pain, inflammation and anxiety as well as seizures, etc, is proven at least to some degree. There are many factors that influence why companies perform studies and unfortunately some of these factors have a monetary basis.

Linda3173
February 08, 2015

Thank you So Much Consumer Lab for all the studies you do to keep us safe from products like this!!!

ConsumerLab.com
February 09, 2015

Thank you for your kind words, Linda!

Carol3180
November 23, 2015

I agree with Linda. I should have checked Consumer Lab before I was taken in and bought the Prevagen last week. Now I will return it. I have heard so much about this product on the radio station I listen to.
Carol Thompson

Bob3175
November 27, 2016

You beat me to it, Linda! Since Mom died of degenerative brain disease that started relatively young as Alzheimer's, I have to fight the impulse to buy anything promoted for brain health. Consumer Labs, you just paid for yourself. Again.

Talbot3176
January 08, 2017

I am always leery about any product promoted with slick, overproduced advertising by a 3rd party firm. That always implies huge built-in cost of the product to pay for ad production costs plus air time.

Additionally, another red flag arises when the "tests" are paid for by the manufacturer and not peer-reviewed or published outside of their own promotion--a clear conflict of interest. A final strike is when the FDA has issued a sanction letter to the company in question.

John3178
December 07, 2017

I agree Linda525. I have subscribed to Consumer Labs for 6 years. I am an R.N. with 25 years of ER experience. I often do research on Consumer Labs for friends who are drawn in by slick commercials for nutritional supplements. My appreciation to Consumer Labs for their work.

Marilyn3174
March 06, 2019

Every time I see the commercial for Prevagen I ask myself how could anybody believe what they are saying? If such a product was actually available that did what they allege it does, pharma would be making billions. It is just so much BS--- I thought this company was going to have to stop making these claims, at least that is what I read, but then somehow, they are allowed to keep making claims that are simply not proven.

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