From time to time, Amazon.com will stop carrying supplement products. Sometimes they claim to be submitting the supplements for additional testing, other times these problems are caused by an issue in the supply chain. Unfortunately with such a large company, it’s often more cost effective to just drop a product if they are still selling other supplements that they deem similar enough.
However, as of 2016, it seems to be a clear case of an Amazon restriction. I found Amazon’s page for restricted supplements, and phenibut is on the list.

This happened in late 2012 with the nootropic piracetam and most recently with phenibut, a popular nootropic for reducing anxiety and promoting calmness. Will they bring either of these supplements back? At this point the answer is still unclear.
Rumors tend to swirl when this kind of thing happens, for instance when piracetam was pulled, questions exploded across the internet about the future of the product as a whole; was this a precursor to a shutdown of all the racetams?
Fortunately, that was not the case and it doesn’t appear to be the case with Phenibut either. Both of these supplements are still available from many reputable sites for comparable (and sometimes even lower) prices. If you have previously bought your phenibut from Amazon, there are two things you need to keep in mind.
First, it’s not the end of phenibut! There are still plenty of places to find it. Which of course means that, secondly, there are other phenibut sources out there. Some of which can be an even better value than those purchased on Amazon.
Where To Buy Phenibut Online (2017 Update)

What follows is a list of two sources for phenibut following the Amazon ban, and the mass exodus of phenibut from multiple vendor inventories in 2016 and 2017. They’re both quality sources, but one is slightly cheaper than the other.
2017 Phenibut Market Update
As of 2017, Hard Rhino and Liftmode no longer carry phenibut. It may have been 2016 when they stopped carrying it, but I haven’t purchased any in some time. Powder City used to sell phenibut at an even better prices, but they sadly discontinued business.
Phenibut Powder from Nootropics Depot
First of all we have NootropicsDepot.com, which carries phenibut in a variety of sizes. The standard 25g in a bulk shipment bag will only cost you $8.99. From a price per gram perspective, NootropicsDepot.com’s 250g is the best price for (quality tested) phenibut on the market at just under $0.22 per gram. There’s a helpful little site called setcurve.com which compares these phenibut prices.
Star Nootropics Phenibut Powder
A second possible source is Star Nootropics (formerly New Star Nootropics). Their phenibut is only $0.02 more per gram than Nootropics Depot.
Why would you buy one over the other? Well, sometimes Nootropic Depot exceeds their credit card processing quota and New Star would be the cheapest quality vendor that processes cards. Although if you’re fine with paying via check until their card processing quota renews, then it doesn’t matter.
Here’s a screenshot from Setcurve.com’s comparison of other phenibut prices for 2017:
Quality Tested Phenibut
Although you may find similar or even cheaper prices for phenibut online, the phenibut vendors listed above test their product. I asked a few other vendors that appeared on the first or second page of google search results for ‘phenibut’ and they could not provide a US lab test to prove the purity of the phenibut. I’m not listing the vendors who only provided manufacturer COAs due to the inevitable vendor backlash.
Is the market too restricted now for phenibut and you want to try an alternative? See my posts on phenibut’s alternatives:
Phenibut versus GABA
Phenibut versus Picamilon