Extra Strength | GNC

Product Information



Improves Memory*
As we age, we lose proteins that support our brain.* Prevagen® supplements these proteins during the natural process of aging.*
Prevagen® (apoaequorin) is clinically shown to help with mild memory problems associated with aging.*
Prevagen Extra Strength® is designed to have twice the apoaequorin as regular strength Prevagen®.
  • Safe & Clinically Tested Ingredient
  • Only One Capsule Per Day
  • Full 30 Day Supply

Prevagen Extra Strength® contains apoaequorin, a protein which uniquely supports brain function*. In a clinical study, Prevagen® improved recall tasks in subjects over a 90 day period.*


Nutrition Facts
Serving Size  1 Capsule(s)
Servings Per Container  30

Amount Per Serving     % DV

Apoaequorin  20 mg   **

** Daily Value (DV) not established.
Other Ingredients
Microcrystalline Cellulose, Vegetable Capsule (Cellulose, Water), Salt, Magnesium Stearate Vegetable Source
Made without most common allergens (milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, and soybeans)
Label (click image to enlarge)

How To Use

Take 1 vegetarian capsules daily in the morning, with or without food.
Quincy Bioscience Holding Company, Inc.
Madison, WI 53717


3.9 / 5.0
12 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Donna H Prevagin
In a few days I felt a change. Good way. Will continue.
February 2, 2019
1 month ago
Workes good
Like the extra strength
January 17, 2019
1 month ago
Have taken it for almost one month and haven’t noticed anything.
November 14, 2018
3 months ago
I am happy
Thank you
November 9, 2018
4 months ago
Very good product
I’ve taken this for 1 month and am really surprised at how well it works!! I may try the extra strength...
October 23, 2018
Hoping for the best
No dramatic "WOW" so far (a few months into this)
September 10, 2018
6 months ago
So far so good!
So far so good. I do notice Improvement in focus and memory retention. Information retention.
September 7, 2018
6 months ago
Will let you know!
I ordered it on line to make sure I liked it when I first bought it.... I never got it... had to try and get my money back so I could go to the store and try it again.... so still trying it...
August 23, 2018
6 months ago
Focus on
Better than the widely advertised Focus Factor
June 4, 2018
9 months ago
I have not been on it 90 days yet per instructions, but seem to be working with my memory.
May 24, 2018
9 months ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 6 questions Browse 6 questions and 6 answers
is there any difference beween taking the capsule or the chewable form of Prevagen?
A C on Sep 5, 2016
Can it be taken by A woman that's almost 80 and has diabetes?
A shopper on Jun 22, 2018
BEST ANSWER: I have no idea.
I am a kidney transplant recipient. Are there any effects I should be concerned about?
A shopper on Aug 4, 2018
how long does it take for this medication to work..i have a state board coming up soon in a month?
A shopper on Feb 27, 2018
BEST ANSWER: I feel like I saw results within a couple of weeks. You will see some difference within a few days, but noticeable difference after a couple of weeks
Is chewable type of Prevagen better or the capsule?
A shopper on Sep 5, 2016
BEST ANSWER: I've always bought the capsules... I didn't even know that it came in a chewable... My opinion is you can take a capsule or a chewable, and they'll both work the same... Maybe if anything, the chewable will absorb quicker then the capsule, but other then that it will have the same effect... Good Luck!
Are there side affects? Because, I am a type 2 diabetic.
Peanut on May 5, 2018
BEST ANSWER: no; my husband is also a type 2 diabetic. it is a good product. it will help you feel more alert. Best to get it when you have rewards points to put toward the purchase.