Fenotrex Review: Does it Help You Sleep?

Fenotrex Review

Fenotrex Review Summarized


  1. Contains a blend of ingredients that may promote relaxation and cognitive function.
  2. Includes vitamins and minerals beneficial for overall mental well-being.
  3. Melatonin content may support healthy sleep patterns.


  1. Lack of disclosed dosages for the proprietary blend limits the assessment of effectiveness.
  2. Magnesium oxide may have lower bioavailability compared to other forms of magnesium.
  3. Customer reviews are rare

Review Summary: Fenotrex offers a blend of ingredients targeting sleep, with potential benefits for relaxation and cognitive function. However, the undisclosed dosages in the proprietary blend, the lack of some core ingredients, and the choice of magnesium oxide as a form of magnesium means it’s not as effective as it could be. Limited customer reviews make it challenging to gauge overall satisfaction and effectiveness.

What do we recommend?

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About Fenotrex

Fenotrex is an exciting supplement that has been making waves in the health industry lately. If you’re wondering what it is, let me break it down for you. Fenotrex is a specially formulated dietary supplement that aims to support your sleep. It combines a unique blend of natural ingredients, including vitamins, minerals, and botanical extracts, all carefully selected to promote cognitive function and emotional balance.

One of the key things that set Fenotrex apart is its focus on addressing stress and anxiety. In today’s fast-paced world, we all experience stress from time to time, and it can take a toll on our mental health. Fenotrex aims to provide a natural solution by helping to calm the mind and enhance feelings of relaxation.

What’s Inside?

Let’s get into the nitty-gritty of Fenotrex’s ingredients and their dosages:

Fenotrex ingredients
  1. Vitamin B6 (2mg): Vitamin B6 is a water-soluble vitamin that plays a crucial role in various brain functions and the production of neurotransmitters. A dosage of 2mg falls within the safe and recommended range for daily intake.
  2. Magnesium Oxide (50mg): Magnesium is an essential mineral that supports a wide range of bodily functions, including nerve function and muscle relaxation. The dosage of 50mg is considered safe and falls within the recommended daily intake, but it’s not the best form of magnesium due to low absorption.
  3. Melatonin (3mg): Melatonin is a hormone naturally produced by the body to regulate sleep-wake cycles. A dosage of 3mg is commonly used to support healthy sleep patterns and is within the effective range for most individuals. [2]

The proprietary blend in Fenotrex is a combination of several herbal extracts and compounds, carefully selected for their potential benefits in promoting relaxation and supporting mental well-being. While the exact dosages of the individual ingredients within the blend are not disclosed, let’s explore their general properties:

  1. Valerian Root: Valerian root has a long history of use as a natural remedy for promoting relaxation and improving sleep quality. It is believed to have calming effects and may help reduce feelings of stress and anxiety.
  2. Skullcap: Skullcap is an herb known for its potential to promote relaxation and relieve nervous tension. It is often used to support a sense of calmness and tranquility. [3]
  3. Hops: Hops are commonly associated with their use in brewing beer, but they also possess natural sedative properties. They can help relax the nervous system and aid in promoting restful sleep.
  4. Chamomile: Chamomile is a popular herb with calming properties. It is often used to soothe the mind and support healthy sleep patterns. Chamomile is also known for its gentle effects on the digestive system.
  5. Passionflower: Passionflower is a plant that has been traditionally used for its calming and anxiety-reducing effects. It may help ease restlessness and promote a sense of relaxation.
  6. L-Taurine: L-Taurine is an amino acid that plays various roles in the body, including supporting brain health and enhancing cognitive function. It may contribute to feelings of mental clarity and focus. Not the best sleep aid though.
  7. Inositol: Inositol is a compound similar to a B vitamin that is involved in neurotransmitter signaling. It has been studied for its potential role in reducing symptoms of anxiety and supporting overall mental well-being. [4]
  8. GABA (Gamma-Aminobutyric Acid): GABA is a neurotransmitter that helps regulate brain activity and promote feelings of relaxation. It is believed to have a calming effect on the nervous system. There’s just one problem, though; GABA supplements have poor bioavailability. It’s much more effective to use ingredients that help the brain make its own GABA.

While the specific dosages of these ingredients are not disclosed, it’s worth noting that the blend combines these ingredients in a synergistic way to potentially enhance their individual benefits. As always, it’s advisable to consult with a healthcare professional to ensure the supplement aligns with your specific needs and health profile.

Are the Ingredients in Fenotrex Good?

When it comes to the ingredients and dosages in Fenotrex, there are a few key points to consider. The dosages of vitamin B6 and magnesium oxide fall within safe and recommended ranges. Melatonin, at 3mg, is a common dosage for sleep support. However, the lack of disclosed dosages for the proprietary blend is a limitation. While the individual ingredients like valerian root, skullcap, hops, chamomile, passionflower, l-taurine, inositol, and GABA have potential benefits for relaxation and mental well-being, the effectiveness of the blend can’t be accurately assessed without knowing the specific amounts. Therefore, it’s unclear how significant the proprietary blend is in terms of its potential impact.

Another letdown is the magnesium in Fenotrex. Magnesium oxide is one of the commonly available forms. While it is widely used, it is important to note that magnesium oxide is not considered the most effective or bioavailable form of magnesium.

Magnesium oxide has a lower absorption rate compared to other forms of magnesium, which means that a significant portion may not be fully utilized by the body. This lower bioavailability is mainly due to the fact that magnesium oxide is less soluble in water and has a tendency to cause digestive issues such as diarrhea in some individuals.

Other forms of magnesium, such as magnesium citrate, magnesium glycinate, or magnesium malate, are often considered more effective and bioavailable. These forms have higher absorption rates and are better tolerated by the digestive system. [1]

Dosage Instructions (How to Take)

Take 1 capsule of Fenotrex 30-60 minutes before going to sleep. If you find it to be easier on your stomach, you can take it with food.

What do Others Say?

Customer Testimonials for Fenotrex are few and far between. You will find a couple of other reviews on the internet from experts but that’s as good as it gets at the moment.

Side Effects of Fenotrex?

Fenotrex should be safe for most people. It shouldn’t cause any major side effects.

That being said, some ingredients commonly found in similar supplements, such as valerian root or chamomile, may cause drowsiness or mild gastrointestinal discomfort in some individuals. It’s also worth noting that high doses of certain ingredients, such as melatonin, could lead to grogginess, vivid dreams, or daytime sleepiness.

To minimize the risk of adverse effects, it’s crucial to follow the recommended dosage instructions provided by the manufacturer. Additionally, consulting with a healthcare professional before starting any new supplement regimen is advisable. They can evaluate your specific health situation and medications to ensure there are no potential interactions or contraindications.

Fenotrex Review: The Bottom Line

In summary, Fenotrex is a dietary supplement designed to support mental well-being. It contains ingredients like vitamin B6, magnesium oxide, melatonin, and a proprietary blend of herbal extracts and compounds.

While the specific dosages of the proprietary blend are undisclosed, the individual ingredients have potential benefits for relaxation and cognitive function.

However, the effectiveness of the blend can’t be fully assessed without knowing the amounts. Magnesium oxide, though commonly used, may not be the most bioavailable form of magnesium.

As a whole, Fenotrex looks like a decent sleep aid, but it’s certainly not the best nor the most transparent we’ve seen.

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  1. Lindberg JS, Zobitz MM, Poindexter JR, Pak CY. Magnesium bioavailability from magnesium citrate and magnesium oxide. J Am Coll Nutr. 1990 Feb;9(1):48-55. doi: 10.1080/07315724.1990.10720349. PMID: 2407766.
  2. Fatemeh G, Sajjad M, Niloufar R, Neda S, Leila S, Khadijeh M. Effect of melatonin supplementation on sleep quality: a systematic review and meta-analysis of randomized controlled trials. J Neurol. 2022 Jan;269(1):205-216. doi: 10.1007/s00415-020-10381-w. Epub 2021 Jan 8. PMID: 33417003.
  3. LiverTox: Clinical and Research Information on Drug-Induced Liver Injury [Internet]. Bethesda (MD): National Institute of Diabetes and Digestive and Kidney Diseases; 2012-. Skullcap. [Updated 2020 Mar 28]. Available from: https://www.ncbi.nlm.nih.gov/books/NBK548757/
  4. Mashayekh-Amiri S, Delavar MA, Bakouei F, Faramarzi M, Esmaeilzadeh S. The impact of myo-inositol supplementation on sleep quality in pregnant women: a randomized, double-blind, placebo-controlled study. J Matern Fetal Neonatal Med. 2022 Sep;35(18):3415-3423. doi: 10.1080/14767058.2020.1818225. Epub 2020 Sep 15. PMID: 32933356.

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