Hydrafinil Review: Effects, Dosage & Where to Buy

Finishing your day’s task may be daunting at times, and your lack of focus and sluggishness may be the one affecting your performance.

Hydrafinil promotes wakefulness and alertness.

If you are up with biohacking to stay awake and help you get through the day, then dive into this Hydrafinil review.

Let’s find out if this is the right caffeine alternative for you.

What is Hydrafinil?

Hydrafinil (Hydrafinil 9 fluorenol, fluorenol) [R], according to research, is a cognitive stimulant that is 40% more effective and less addictive than modafinil.

hydrafinil 9 fluorenol

It has fluorenol which is an alcohol derivative of fluorene.

The hydroxyl group is located on the bridging carbon between the two benzene rings in the most significant isomer, fluoren 9 ol creating hydroxyfluorene.

The molar mass of 9-fluorenol is 182.20 g mol or 182.218 g mol to be exact.

Hydroxyfluorene is converted to fluorenone by oxidation. The 9 fluorenol boiling point is approximately 367.5 °C. It is not water-soluble and is cream-colored in crystalline powder form.

Hydrafinil 9 hydroxyfluorene is considered a viable counterpart to modafinil as a poor dopamine reuptake inhibitor. While it is 59% weaker, it is more eugeroic, making it less addictive than modafinil.

Hydrafinil is a eugeroic that may be bought in powder form.

EffectsIncreased histamine levels, better glutamate levels, enhanced mood, less addictive and stimulating
Potential Side EffectsHeadache, dizziness, nausea, nervousness, anxiety, difficulty sleeping, mild crash
Half-Life6- 8 hours
Common Dosage50 - 150 mg daily
Content5 g
Money Back Guarantee30 days
Rating⭐⭐⭐⭐⭐ 4.7/5
Best VendorClick Here ›

Eugeroics are wakefulness-promoting agents that are beneficial when ingested in moderation as it helps you maintain a state of alertness and get you through the day.

What Does Hydrafinil Do?

9 fluorenol is a known eugeroic. It can be in the form of pill or powder and it stimulates wakefulness without feeling tired and sleepless.

hydrafinil featured image

Research showed that eugeroics like 9 fluorenol, keeps you from sleep but with a well-rested feeling. You become more attentive and your information processing and logical thinking also increase.

Hydrafinil reviews on the powder and pill form revealed that it can improve short-term visual memory, concentration, and information processing while reducing impulsivity and increasing critical thought.

Hydrafinil 9 fluorenol (Hydrafinil 9 hydroxyfluorene) has serotonergic effects without having to worry about getting sleep at night since the powder stays in the body only for 6 to 8 hours.

Effects & Benefits

There are various eugeroics in the market but 9 fluorenol Hydrafinil has favorable advantages compared with the rest.

hydrafinil benefits
  • Wakefulness. 9 fluorenol is a eugeroic that keeps you awake without feeling tired or sluggish. It helps with short term attention and can sustain alertness for a longer period.
  • Enhanced mood. Many people believe that a dose of the powder or pill can boost their state of mind because of its serotonergic effect.
  • Less stimulating. Fluoren 9 ol’s overall effect is thought to be milder thus, adverse reactions may be more unlikely.
  • Less addictive. Due to the decreased psycho-stimulation, the powder is less addictive compared to modafinil.
  • Affordable. 9 fluorenol powder is affordable at the average price of $25 for two grams. If calculated per dose, it would cost you only around $1.25 per dose of 100 mg.
  • Unregulated: The fluoren 9 ol powder is unregulated making it accessible to anyone who needs it.

How Does Hydrafinil Work?

Hydrafinil is marketed by Cephalon Pharmaceuticals as a eugeroic agent. After its development, 9 fluorenol was one of the first substances to be deemed a successor of the FDA approved medication, Modafinil.

In addition to alertness, Hydrafinil 9 fluorenol also improves cognitive performance based on its function.

This is how it works:

  • Dopamine reuptake inhibitor. The powder acts as a dopamine reuptake inhibitor and helps increase dopamine production to improve cognition.
  • 5-HT6 antagonist. The antagonism of the 5 HT6 receptor enhances the production of choline and glutamate in the brain. It also improves the concentrations of norepinephrine and dopamine in the prefrontal cortex.
  • Better Glutamate levels. The antagonism of the HT6 receptor helps increase the level of glutamate which results in the enhanced cognitive function of the brain.
  • Increased histamine levels. With improved histamine levels brought by Hydrafinil 9 fluorenol, our circadian rhythm normalizes providing better sleep-wake cycles.

Dosage & How to Take

Since there are yet further scientific studies required to identify the exact Hydrafinil dosage, it is advisable to use only 50-150 mg powder or pill.

The maximum of 150 mg powder can be taken in hourly increments.

Like any other supplement, Hydrafinil 9 fluorenol can be stacked with other nootropics to get the most of its potential benefits.

Side Effects

The lack of scientific studies could not guarantee the safety and harmful effects of taking Hydrafinil 9 fluorenol powder or pill.

The research use dosage may be adapted to get the desired stimulation.

Some of the reported fluoren 9 ol Hydrafinil side effects are the following:

  • Headache
  • Nausea
  • Nervousness
  • Dizziness
  • Anxiety
  • Difficulty sleeping
  • Mild crash

Experiences Shared on Reddit

The powder product according to research is anecdotally suggested to be more potent than modafinil.

Here are some Hydrafinil Reddit experiences noted for reference.

According to HesitantPsychonaut:

“…I tried Hydrafinil for the first time yesterday in the form of one 50mg capsule. Took it about 4 am with some coffee and my daily vitamins. About 45 mins I noticed first effects. An hour in I was experiencing some pretty strong (for afinils) stimulation, which took me by surprise as I wasn't expecting much from 50mg…”

According to OneLodz:

“…Then this evening I took 60mg and then this amazing experience happened. I felt euphoric for more than an hour and just felt very calm and centered. Just this amazing feeling of calm and well being!!! Lasted for as 3-4 hours and no crash atm still…”

Where to Buy Hydrafinil Online

Hydrafinil 9 fluorenol powder is not regulated and can be bought from a website that meets the quality standard of selling powder and pill supplement products like Hydrafinil 9 fluorenol.

Science.bio is a trusted seller of the product. They provide CoA and they also ship worldwide.

Prices may also vary depending on location.

Frequently Asked Questions (FAQ)

Your questions are answered here.

How Long Does It Last?

Compared with Modafinil, it has a shorter half-life of only 6 to 8 hours.

What is the Difference Between Hydrafinil and Adrafinil?

Hydrafinil and Adrafinil both metabolize in the liver forming Modafinil.

However, the evidence tends to suggest that Adrafinil has a greater adverse effect on the liver.

A lot of evidence encouraged users to compensate for liver damage by using Milk Thistle.

On one hand, Hydrafinil is considered milder and cleaner with fewer side effects.


Hydrafinil is the future of caffeine. Its mild crash and subtle wakefulness prove it to be safe for human consumption.

This makes the product the most recommended powder for beginners and for those who worry about liver problems from taking supplements.