The product can not be sold in a country where it is illegal.

Buy 4-Fa, 3-FA, 2-FA for sale

Product Name: 4-FA
IUPAC Name: (RS)-1-(4-Fluorophenyl)propan-2-amine
Other Names: 4-Fluoroamphetamine,; 4-FMP; PAL-303; "Flux", para-fluoroamphetamine, PFA
Cas Number: 459-02-9
Molecular Formula: C9H12FN
Molar Mass: 153.20 g/mol
Effect: stimulant, psychedelic
Purity of the substance: 99.9%
Physical properties: Crystals, Powder
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  • 4-Fa, 3-FA,  2-FA

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If you're considering experimenting with 4-FA, gathering accurate information about this substance, including its history, effects, dosage, legal status, pharmacology, chemistry, and what to expect during a trip, is essential. However, before delving into these aspects, it's important to address one crucial question: where can you buy 4-FA?

4-FA, or 4-Fluoroamphetamine, is a synthetic research chemical that has gained popularity in certain circles. It's important to emphasize that the legality and availability of 4-FA can vary significantly by country and region. Due to concerns about its safety and potential for misuse, many countries have imposed strict regulations or outright bans on this substance.

1. Online Sources:

 In the past, 4-FA was more readily available through online research chemical vendors. However, the increasing legal scrutiny surrounding such substances has made it difficult to find reliable sources. Even if you come across websites claiming to sell 4-FA, exercise caution and carefully research the vendor's reputation, legitimacy, and compliance with local laws. Remember that buying substances from unverified online sources can be risky and potentially illegal.

2. Local Connections: 

Some individuals may attempt to obtain 4-FA through local connections, such as friends or acquaintances. However, this approach carries risks, including potential legal consequences and uncertainties about the quality and purity of the product. Purchasing substances from unofficial sources can be dangerous, as they may be contaminated or misrepresented.

3. Research Chemical Communities: 

In some regions, underground communities discuss and distribute research chemicals like 4-FA. These communities can be challenging to access and may not prioritize safety or quality control. Engaging with such communities should be cautiously approached, as they operate in a legal grey area and can expose you to significant risks.

It's crucial to emphasize that the availability of 4-FA has dwindled in recent years due to increasing regulation and law enforcement efforts. Furthermore, the safety and legal implications of purchasing and using this substance are serious concerns. Before considering acquiring or using 4-FA, research your country and region's specific laws and regulations to understand the potential risks and consequences.

The History

4-Fluoroamphetamine (4-FA) is a synthetic amphetamine derivative with stimulant and empathogenic effects. It was first synthesized in the early 1980s by a team of researchers led by David E. Nichols at Purdue University. The compound was initially developed for scientific purposes and not intended for recreational use.


The effects of 4-FA can vary widely depending on factors such as dosage, individual sensitivity, and the user's overall state of health. Generally, it is known for producing a combination of stimulant and empathogenic effects.

  1. Stimulant Effects: 

    Like other amphetamines, 4-FA can increase alertness, energy, and focus. Users may experience enhanced physical and mental performance, increased heart rate, and reduced appetite.

  2. Empathogenic Effects:

    One distinctive feature of 4-FA is its ability to induce empathy and sociability. Users may feel more connected to others, experience enhanced emotional openness, and have an increased capacity for social interaction.

  3. Mild Hallucinogenic Effects:

    Higher doses of 4-FA can sometimes lead to mild hallucinogenic effects, including visual distortions and altered perceptions of reality. These effects are generally less pronounced than classic hallucinogens like LSD or psilocybin.

  4. Duration:

    4-FA's effects typically last between 4 to 8 hours, with the peak occurring within the first few hours after ingestion.

  5. Comedown and Aftereffects:

    After the effects wear off, users may experience a decline characterized by fatigue, mood swings, and a sense of depletion. Some individuals report lingering aftereffects for a day or two, such as a mild sense of emotional fragility.

It's important to note that 4-FA's effects can vary significantly from person to person, and the substance's safety profile is not well-documented, especially in the long term. The lack of comprehensive research on its risks and benefits concerns health professionals and regulatory agencies.


Determining an appropriate dosage of 4-FA is challenging due to the limited research. Users should exercise extreme caution when considering experimentation and start with the lowest possible dose to minimize potential risks. Dosages can vary widely based on individual tolerance and the desired effects. Typical dosages range from 50 to 150 milligrams taken orally.

It's essential to remember that higher doses can increase the risk of adverse effects, including cardiovascular issues, anxiety, and hallucinations. Regular use or high doses may also lead to tolerance and dependence, making it crucial to use 4-FA sparingly.

Legal Status

The legal status of 4-FA varies from country to country and even within different regions. Many nations have classified it as a controlled substance due to concerns about its safety and potential for misuse. In some places, 4-FA is explicitly listed as a prohibited substance, while in others, it may fall under analogue laws, making it illegal if deemed structurally similar to controlled substances.

Before considering any use of 4-FA, it's vital to research and understand the specific laws and regulations in your jurisdiction. Possessing or distributing 4-FA can sometimes result in criminal charges, fines, and imprisonment. Remember that legal penalties can be severe, and ignorance of the law is not a valid defence.


4-FA's pharmacology is complex and needs to be fully understood. It primarily acts as a releasing agent for serotonin, dopamine, and norepinephrine, leading to increased levels of these neurotransmitters in the brain. This action contributes to its stimulating and empathogenic effects.

However, the precise mechanisms and potential long-term effects of 4-FA on the brain still need to be well-documented. This lack of research raises concerns about its safety and potential for adverse neurological effects, particularly with regular or high-dose use.


From a chemical standpoint, 4-FA is an amphetamine derivative, specifically a substituted amphetamine. Its chemical structure includes a fluorine atom attached to the phenyl ring, distinguishing it from other amphetamines. The chemical name for 4-FA is 4-fluoroamphetamine, with the molecular formula C9H12FN.

4-FA's structural similarity to other amphetamines contributes to its stimulant properties and affects the brain's neurotransmitter systems.


Experiencing a "trip" with 4-FA can vary significantly among individuals and depend on dosage, set, and setting factors. Here are some common aspects of a 4-FA trip:

  1. Onset: The effects of 4-FA typically manifest within 30 minutes to an hour after ingestion. Users may feel a surge of energy, heightened alertness, and increased sociability.
  2. Empathogenic Phase: Users often experience increased emotional openness and empathy as the trip progresses. This phase is marked by enhanced sociability and a desire to connect with others.
  3. Stimulation: Users may feel highly stimulated, with increased energy and a desire to engage in physical and mental activities. This phase can be enjoyable for some but overwhelming for others.
  4. Hallucinogenic Effects: Higher doses of 4-FA can sometimes lead to mild hallucinogenic effects. Users may report visual distortions and alterations in sensory perception. These effects are usually less intense than those of classic psychedelics.


4-Fluoroamphetamine is a substance that demands careful consideration and respect. Its availability, legality, and effects are subject to change, and its use should be approached with the utmost caution and awareness of the legal and health risks involved. Before contemplating any experimentation with 4-FA or any other psychoactive substance, it is imperative to stay informed, prioritize safety, and adhere to the laws and regulations of your jurisdiction.


What is 4-Fluoroamphetamine (4-FA)?

4-Fluoroamphetamine (4-FA) is a synthetic psychoactive substance that falls within the amphetamine class of drugs. It is renowned for its stimulating and empathogenic effects and is occasionally used recreationally.

What are the common street names for 4-FA?

4-FA goes by various street names, including 4-FMP, PAL-303, and "Flux."

How is 4-FA typically used?

4-FA is most commonly ingested orally, either in powder or pill form. It can also be snorted or mixed with other substances, although these methods may carry higher risks.

What are the effects of 4-FA?

The effects of 4-FA may encompass increased energy, improved mood, heightened sociability, and greater empathy towards others. Users might also experience enhanced sensory perception and increased libido.

Is 4-FA legal?

The legal status of 4-FA varies by country and region. It has been classified as a controlled substance in some areas due to its potential for misuse and health risks. Verify your local laws before obtaining or using 4-FA.

What are the potential risks and side effects of 4-FA?

The use of 4-FA can have various adverse effects, including an elevated heart rate, increased blood pressure, anxiety, paranoia, and overheating. Overuse or combining it with other substances can be particularly hazardous.

Is 4-FA addictive?

Like many stimulant substances, 4-FA has the potential for addiction. Users should exercise caution in their consumption to prevent dependence.

Can 4-FA be used for medical purposes?

4-FA does not have approved medical applications and is primarily encountered in recreational contexts.

Can 4-FA be safely combined with other substances?

Combining 4-FA with other substances, especially alcohol or other stimulants, can heighten the risk of adverse effects and health complications. It is not advisable to mix it with other drugs.

How can I reduce the risks associated with 4-FA use?

To minimize risks, employ harm reduction strategies such as starting with a low dose, staying well-hydrated, avoiding excessive use, and monitoring your physical and mental well-being. Seek medical attention if you experience severe adverse effects.

Is 4-FA the same as MDMA (Ecstasy)?

4-FA and MDMA share some similarities in terms of effects, but they are distinct substances with their own unique properties. While both have empathogenic effects, 4-FA is considered to be more stimulating and less empathogenic compared to MDMA.

Can I use 4-FA safely?

The safety of 4-FA use hinges on several factors, including individual health, dosage, and frequency of use. The best way to ensure safety is to abstain from 4-FA use altogether, as it can be associated with health risks and legal consequences.

Is there any research on the long-term effects of 4-FA use?

Scientific research on the long-term effects of 4-FA is limited. However, given its similarity to other amphetamines, concerns exist regarding potential neurotoxicity and adverse health consequences associated with regular and high-dose use.

Can I seek help if I or someone I know is struggling with 4-FA use?

If you or someone you know is experiencing issues related to 4-FA or any substance use, it is crucial to seek assistance from a healthcare professional or a support organization specializing in substance abuse and addiction.

Please note that the use of 4-FA can be risky, and this FAQ is for informational purposes only. Always prioritize your health and well-being, and make informed decisions regarding substance use in consultation with healthcare professionals.

Where to get 4-FA?

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