Phenibut 101: Dosage, Where to Buy, & More (Updated 2020)

Phenibut is a research chemical used for anxiety relief that has grown in popularity amongst bio-hackers, particularly over the past decade.

Proponents of this nootropic claim that it can obliterate any and all social anxiety, helping you stay cool under high pressure situations.

What does the data say, though? Is Phenibut safe? Are there any side effects? What about the proper dosage protocol?

In this article, we’ll aim to give a science-based report on this fascinating new nootropic compound: Phenibut.

What is Phenibut?

Phenibut was first developed in the 1960’s by Russian scientists, who needed a way to help astronauts stay calm, but not sedated. [R]

As you can imagine, astronauts are under a lot of high pressure situations, but if you gave them something like Xanax, they could doze off or pass out, and crash a multi-billion dollar space ship. Not good.

So, scientists developed a compound known as Phenibut HCL, and since then, many people have used this drug to great success at reducing anxiety.

Despite the fact that the FDA has not approved phenibut for human use (yet), many people find that it helps them relax in high stress situations.

How Does Phenibut Work?

Phenibut begins working shortly after ingestion (within 1 hour), and quickly starts activating both known GABA receptors in the brain. [R]

GABA, short for gamma-Aminobutyric acid, is a neurotransmitter associated with a feeling of calm, relaxation, and tranquility—so, it’s no wonder that if Phenibut increases GABA, it helps with anxiety.

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Phenibut is what’s known as a GABA analogue, which means it’s capable of passing the blood-brain barrier, and binding to the brain’s GABA receptors.

This is what causes the relaxed and calm feeling that Phenibut users report experiencing—that feeling of sheer and utter tranquility that we all love.

Phenibut Benefits

How It Feels To Be On Phenibut

Phenibut is a very powerful nootropic which has a whole host of benefits, some proven, some more based on anecdotal research.

The benefits of taking phenibut may vary depending on the individual, but those who have a tendency to suffer from anxiety will benefit greatly.

Here are some benefits of Phenibut usage:

  • Reduce Anxiety
  • Improve Cognition
  • Powerful Sleep Aid
  • …and more

When used properly, Phenibut can be a powerful anti-anxiety nootropic that will aid anyone greatly. When used improperly however, there can be serious side effects—so do not use this drug lightly.

Phenibut Dosage Guidelines

While there’s no established recommended dosage for phenibut, most veteran users agree that taking 250 milligrams is a good place to start.

Everyone’s anatomy and brain chemistry is different, so it’s always best to start off small, since you can always take more phenibut later.

Here are the recommended Phenibut dosages:

  • Beginner: 250 mg
  • Intermediate: 500 mg
  • Advanced: 750+ mg

While you’re trying out different dosages, it’s important to never go beyond taking 750mg per day, otherwise you risk a potential overdose.

How to Cycle Phenibut

Because your body will naturally build up a tolerance to Phenibut quite rapidly, it’s important that you cycle off it for at least 2-3 days at a time.

So, if you take Phenibut on Friday, it would be best then to take Saturday and Sunday off, and resume usage on Monday, followed by 2 more off days.

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This is known as “cycling” Phenibut, and it’s how you can avoid building up a tolerance to this drug. Remember—never take it two days in a row, otherwise you may start to build up a tolerance.

Where to Buy Phenibut

If you’re looking to buy Phenibut online, you need to be very careful—there’s a lot of scammers out there selling low quality, fake bogus stuff.

Here at Nanotech Project, we recommend you buy Phenibut from Science Bio, due to their rigorous 3rd party testing process, and high purity.

You can buy Phenibut in one of two forms:

Despite the liquid form being cheaper, if you do the math, you actually get a better deal when you buy the powder. That being said, powder is harder to measure and may not be the best choice for a beginner.

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For most beginners, we recommend you start off with the liquid form of phenibut, available for purchase here, and start with 1-2 droppers.

Is Phenibut Legal to Buy?

Thankfully, Phenibut is legal to buy, sell, and distribute in the United States of America, as well as most other countries, as a “research chemical.”

While Phenibut is not approved by the FDA for clinical use in the United States, it is still legal to buy—similar to SARMs, as we’ve written about.

Phenibut is currently legal to buy and possess in the United States, the UK, Australia, Germany, Switzerland, South America, and most other countries.

Phenibut Side Effects

While Phenibut can be a very powerful anti-anxiety drug and nootropic, it can have some serious side effects if you don’t know how to use it properly.

Thankfully, most people will not experience any bad side effects if they follow the proper dosage protocol, but we still advise caution. [R]

Here are some potential Phenibut side effects:

  • Sleepiness
  • Nausea
  • Vomiting
  • Shaking
  • Headaches

Most individuals will not experience these side effects if they take the proper Phenibut dosage, drink plenty of water, and get enough rest.

That being said, if one decides to combine Phenibut with kratom or alcohol, the odds of encountering nasty side effects grows exponentially.

Phenibut Withdrawal Symptoms

One serious side effect you may encounter with phenibut is if you take it on far too many consecutive days, at far too high of a dosage.

Similar to other drugs, if you take too much for an extended period of time, you may develop a tolerance, and suffer withdrawals when you quit.

Here are some common Phenibut withdrawal symptoms:

  • Panic Attacks
  • Fatigue
  • Anxiety
  • Tremors
  • Sweating
  • …and more

If you do experience phenibut withdrawal symptoms, be sure to contact a doctor if they don’t go away within 24-48 hours. They can be serious.

This being said, most people can avoid any sort of withdrawal symptoms with phenibut by simply using it responsibly and taking frequent breaks.


Copyright @ Caesar Boston

In conclusion, the effects of Phenibut are potent and strong. Just one dosage, and most users report a drastic decrease in anxiety levels.

That being said, it must be used with caution. Never take more than the recommended dosage (250 mg to start), and always take off days.

If you do want to buy 99% pure Phenibut for a great price, we recommend you click here and use the code “nanotech” for 10% off your order.

Phenibut is a phenomenal drug when used properly, and we hope that you decide to use it with caution—if you have any questions, don’t hesitate to let us know in the comments section below!

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Nanotech Project Team

The Nanotech Project team is committed to providing the most accurate and up-to-date information about anabolics, nootropics, and bio-hacking as a whole.

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