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Primaforce, Phenibut, Unflavored, 100 g (Discontinued Item)


Out of Stock - Discontinued
  • Shipping Weight: 0.41 lbs (0.19 kg)
  • Product Code: PMF-02033
  • UPC Code: 811445020337
  • Package Quantity: 100 g
  • Dimensions: 3.1 x 2.9 x 2.9 in, 0.35 lbs (0.16 kg)
Product Overview


  • Tested for Purity and Potency
  • Supports Relaxation
  • Supports Restful Sleep
  • Supports Feelings of Well-Being
  • Dietary Supplement

Product produced in a GMP certified facility.

Suggested Use

As a dietary supplement, take 1-2 servings 2-4 times per day. To promote restful sleep, consume 2-6 servings before bed. Start at the lower dose to assess tolerance. Do not take for more than 3 days in a row without a 2-3 day wash out. Use only as directed. Do not exceed recommended daily intake.

Other Ingredients

Note: This product produced in a facility that may also process ingredients containing wheat, milk, egg, soybeans, fish, shellfish, treenuts, and peanuts.


May cause drowsiness; alcohol, sedatives and tranquilizers may increase the drowsiness effect. Avoid alcoholic beverages, and do not take this product if you are taking sedatives or tranquilizers without first consulting your physician. Use caution when driving a motor vehicle or operating machinery. Not intended for persons under the age of 18. If you are pregnant or nursing or are taking any prescription medications, consult your healthcare professional before using this or any other dietary supplement product. Immediately discontinue use and consult your doctor if any adverse reactions occur. Keep out of reach of children. Store in a cool, dry place and avoid excessive heat.

Supplement Facts
Serving Size: 1 Level Scoop
Servings Per Container: 333
  Amount Per Serving % DV
Phenibut (ß-phenyl-y-Aminobutyric acid) 300 mg *
*Daily Value (DV) not established.
iHerb Customer Reviews

Great sleep aid

Posted by 4762218410512715234 on Oct 25, 2016

Good clean product that stops me waking too often through the night

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So unreal for shift work

Posted by NightshiftPaul on Jun 07, 2016

So good for getting proper sleep before night shift, I have tried a few things, most natural supplements just don't work and other sleep medications leave you groggy but Phenibut works so well. With Phenibut I sleep deeply yet I wake up feeling refreshed and ready for work. I take it an hour before I need to sleep on the day before my first night shift, then I take it the day after my first night shift to make sure I get a good start on that sleep pattern. At first I found it hard to gauge the dose but I bought a cheap electronic mini scale and I only ever use 250 milligrams (1/4 gram) at a time, that is heaps for me and I never take it less than 5 hours before work because it takes about an hour to kick in and it is at its strongest effect for about 4 hours after that. As for the anxiety relief side of things at 250mg I don't really notice that nor do I feel particularly more socially active but not being tired at work is a excellent mood enhancer in itself!

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Learn to handle your dosage and intakes and you will love Phenibut!

Posted by 4870273054114006190 on Jun 06, 2016

Phenibut is an amino acid that works wonders against anxiety, depression, sleep disorders and even opiate withdrawal. As long as you can handle the dosage and intake, it won't hurt you - the same goes for ALL supplements! I find the recommendations on the back of the can a bit extreme though, please start off with a dose as low as 300 mg (one scoop), wait one or two hours and if it hasn't done anything for you yet, take one or three more. Phenibut has helped me a lot, more than ANY other anxiety medication or SSRIs. Also, don't take Phenibut for more than two days in a row/three days a week. So, get to know your body and learn about your tolerance and it WILL help.

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Sometimes works

Posted by Rena61 on Jun 02, 2016

My husband is one of the hardest to be able to fall asleep after he wakes up from a nightly bathroom break. Strange, but sometimes it works but sometimes it doesn't. He took the pill form, and the same thing happened. He only takes a couple of times a month, so I know it's not because his body is getting too much of it. He is just that difficult of an insomniac. The taste is bitter so he says, but I get a kick out of his expression when he takes it. Evil of me I know.

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Really works for anxiety!

Posted by 5126294382651632887 on May 13, 2016

Lifts mood and kills anxiety. Be careful not to take too much at a time for tolerance do develop.

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