Prolongz™ | GNC

Advanced Men's Institute Prolongz™


Item # 514400


Size: 20 Item(s)

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Product Information


Advanced Men's Institute
  • Power your sex drive
  • Increase Sexual performance
  • Longer lasting sex
In clinical studies, the ingredients in Prolongz™ by Advanced Men's Institute (AMI), were proven to increase ejaculatory control levels of over 97% in men. Prolongz™ is a natural supplement created for men who want to perform at their highest level. Developed with intensive research, Prolongz™ uses the most effective natural ingredients.

Prolongz™ by AMI contains a very potent natural combination of herbs, vitamins, antioxidants, and mushroom extracts. Prolongz™ has been proven to effectively increase the length in Sex for over 97% of Thousands of Men who have tried Prolongz™. Longer lasting sex is achievable. Prolongz™ will make you firmer and last longer.

**Each container comes with 20 strips, 3 Containers included in each box. 60 Strips Total. One Month supply.

Label (click image to enlarge)


Take 2 Strips once a day, plus 1 Strip minutes prior to sex.


  • Keep out of reach children
  • Store at room temperature (60-80°F)

Other Ingredients

Pullulan Capsule, Peppermint Extract, Menthol, AK Sugar, Polyglycerol Fatty Acid Esters, Aspartame

Nutrition Facts

Serving Size  2 Strips
Servings Per Container  10

Amount Per Serving     % DV

Damiana Extract  10 mg   **
Ginseng Extract  10 mg   **
Fenugreek Seed Extract (Standardized for 50% Fenuside™)  0   **

** Daily Value (DV) not established.


2.8 / 5.0
10 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Didn't work for me
April 17, 2018
11 months ago
Prolongz...waste of money.
This stuff is a joke..done basically nothing at all. Everything still the same and I'm doing the dosage it says( even upped the dosage) and nothing...nada! Don't waste your money. That's $50 I'll never get back.
June 7, 2017
10 months ago
Response from GNC
Eric, thank you for your review of Prolongz. We are sorry to hear about your experience. We want you to be fully satisfied with every item that you purchase from If you are not satisfied with an item that you have purchased, you may return the item within 30 days from the order date for a full refund of the purchase price, minus the shipping and handling charges. The item must be returned, unused or used, in good condition, in original boxes (whenever possible), and with all paperwork and accessories to ensure full credit. You may also want to visit our your local GNC store and speak to one of our associates who can find the best product for your needs.
June 8, 2017
John TStaff
Fantastic Product
This product is fantastic, it makes me to last longer than ever and is liked by my wife. The surgery I took messed me up but I am just hoping that there is another product that can solve my problem. For this specific product, I think I need to order more of it.

Very effective indeed.
February 25, 2017
I followed the directions and took a strip morning and night also one in the early evenings since I am a bigger guy. The whole time I was very skeptical believing this little sliver is going to do anything. I would take each one and fold it and then put it under my tongue. After about 3 or 4 days of steady doses I went for home base and believe it or not this actually delivered in a big way. It is still hard for me to believe this actually worked but I am giving it another go for next time. Definite extended performance. Just dont miss a dose and take it on clockwork and you should be good to go. These little strips work awesome for me.
March 29, 2016
Amazing product!
Saw this product at my local store 3 months ago while picking up my regular supplements and haven't stopped using it ever since. My wife and I are always up for trying new products - this is by far one of the best products out there. It is very easy to take, and it works great! I definitely recommend it, you will not be disappointed.
July 15, 2015
Unbelievably high cost for the ingredients listed
Reading the label, I cannot believe the cost of this for 10 servings. The ingredients listed on label are all easily available. You can build your own formula with more potency and get at least 3 times as many servings by buying Damiana and Fenugreek separately. Damiana Tea with a teaspoon of Fenugreek in it would be a tasty concoction if your worried about the active ingredients being easily absorbed.
May 21, 2015
did nothing for me
used as directed did nothing for me I think it made things worse
February 14, 2015
Saved my Marriage & Self Esteem
I had a serious issue with premature ejaculation that was embarassing and damaging to my marriage. After a few weeks of use, I (and my wife) noticed I could last a lot longer. Almost as long as I wanted to. This is an incredible product - i would highly recommend to anyone that is struggling with this issue.
January 15, 2015
worked as intended, positive results
this is my 2nd month using the product, purchased from my local gnc (got a deal compared to other online offers I've seen)... I've definitely seen a dramatic increase in control, lasting quite longer. Will continue to use for the foreseeable future, really like the sub-lingual strip delivery concept and application
January 11, 2015
Just flat out doesn't work
Used the product as directed, followed the label and it did absolutely nothing.
December 25, 2014
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How to use?
A shopper on Apr 14, 2018
BEST ANSWER: Just put it on your tongue and let it resolve, didn't help me one bit