Updated: 01/26/2016 - Sponsored by Leptigen

Phenolox Review - Does This Dietary Supplement Work? Are cost and risk of side effects deal breakers?

Editor's Review: 2.7 / 5.0
Phenolox Review

Metabolism boosters are flying off the shelves these days, so we decided to look into a metabolism booster called Phenolox. We examined the ingredients, the side effects, and the clinical research as well as customer-service quality. We also scoured the web for customer reviews; then we summarized and condensed it all to give you the info you need to make an informed decision for yourself.

EDITOR'S TIP: Substitute Phenolox with a proven fat burner such as Leptigen for better results.

What You Need to Know

First, Phenolox is a dietary supplement pill containing a proprietary blend of the following ingredients: Green Tea Extract, Advantra Z, L-Carnitine, L-Phenylalanine, Cayenne Pepper Extract, Coleus Forskohlii, Chromium Picolinate, and DC Potassium Phosphate. When taken as directed, Phenolox is purported to boost metabolism, curb appetite, and burn fat. One pro is that you have to take only 2 pills every day, and you only take that many after you’ve “eased into the supplement” by testing your tolerance for the supplement with 1 pill per day.
Phenolox is made by a company called Metabolic Nutrition, which was supposedly started in 1988. It’s available on the official website for $52.99. Phenolox seems to rely on fairly reputable ingredients rather than including speculative material that hasn’t been researched, and it is certainly simple to use, but read on…

Price–“$53 for This?”

The first concern we had with Phonolox is cost. “If you take two of these pills every day, it would be surprising if you didn’t see any results,” said our research editor. “But at $52.99 for 45 pills, you’re forking over a substantial amount of money for Phenolox. I’m concerned that the ingredients don’t stand up to that kind of price tag.” With the price-per-pill at over $1, two pills per day adds up quickly.
You can find 250 capsules of green tea extract on Amazon for under $10. You can purchase the same amount of chromium for the same price, and citrus aurantium is $5. You can even find other proprietary blends of the ingredients for under $50, so we don’t necessarily think Phenolox presents a good value to the consumer.

Scroll below for one of the best products we’ve seen over the last year.

Side Effects of Citrus Aurantium–Another Concern

Citrus Aurantium, or bitter orange, has become the mainstream replacement for the now-illegal ephedrine. Bitter Orange isn’t without its own health concerns, though. According to the National Center for Complementary and Integral Health, “Bitter orange contains the chemical synephrine, which is similar to the main chemical in ephedra.” It has yet to be established that bitter orange is, in fact, safer to use than ephedra. Furthermore, “There have been reports of fainting, heart attack, and stroke in healthy people after taking bitter orange supplements alone or combined with caffeine,” the NIH says.
We’ve found that even one or two drawbacks can keep an otherwise effective product from working. Cost is a big factor–and if it’s too high, a product that is only moderately effective will often fall by the wayside. More importantly than cost is health; even slight heart-related side effects should be taken seriously.
If you are dead set on taking Phenolox with its accompanying Citrus Aurantium ingredient, the NIH has the following recommendation before your commit to it: “People should avoid taking bitter orange supplements if they have a heart condition or high blood pressure, or if they are taking medications (such as MAO inhibitors), caffeine, or other herbs/supplements that speed up the heart rate.”

The Science

Scientific research is incredibly important when you make a supplement decision. Most of the main ingredients in Phenolox have been researched to a certain extent, although the proprietary blend hasn’t been studied in any published research. The big question mark lies in the fact that we haven’t seen enough research on bitter orange to know if it’s safe and effective.
Furthermore, there’s no indication that Phenolox is any better than other products on the market. You could save a significant amount of money by purchasing your own individually-sold ingredients. There are plenty of comparable products on the market that cost less.

The Bottom Line

Phenolox just doesn’t seem to be anything special. It offers a very common list of ingredients that you can find elsewhere, all for a relatively uncommon price–in our opinion, the price is too high. The lack of clinical research into Phenolox itself is a disappointment, and we can’t justify the use of Citrus Aurantium until further research clears it.
If you need a supplement to boost weight loss, we suggest going for something that offers real results for an affordable price. Clinical research is a pretty big deal too.
2015 has brought about the release of several interesting products, but Leptigen always stands out above the rest. It includes four ingredients in a proprietary blend, and it will boost metabolism and burn fat. Side effects haven’t come up online, and customers are loving the results.
A special trial offer makes Leptigen all the more appealing to try, so don’t wait until the offer is over.

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How Does Phenolox Compare?

Previous Phenolox Review (Updated January 1, 1970):

What You Should Know

Click Here To See Our Highest Rated Review

Phenolox is manufactured by the company Metabolic Nutrition. The official website for Metabolic Nutrition tells us that it is formulated to address a slow metabolism by boosting caloric burn. Some of the major active ingredients in Phenolox include Advantra Z and Green Tea Extract. Green Tea Extract has fast become one of the most common ingredients in weight loss products on the market today. Advantra Z is made from Citrus Aurantium, which many manufacturers of weight loss products now use as an alternative to the now banned, once-popular ingredient ephedrine. The other ingredients in Phenolox are ingredients that can commonly be found in other similar weight loss products on the market today.


The ingredients in Phenolox consist of: Green Tea Extract, Advantra Z, L-Carnitine, L-Phenylalanine, Cayenne Pepper Extract Coleus Forskohlii, Yohimbe, Chromium Picolinate and DC Potassium Phosphate.

Product Features

The official website for Phenolox tells us that it should be taken three times a day, and that users should not exceed more than six capsules in a day. There are a number of warnings that come with this product, so if you have any existing health problems or are taking any kind of prescription medication you should carefully read the contraindications. Some experts also urge caution due to the use of Citrus Aurantium, which is also known as Synephrine and Bitter Orange Extract, whien included in any weight loss products as they believe that it may increase the risk of a stroke or heart attack. Phenolox can be ordered directly from the official website at a price of $52.00 for a bottle. There is also a money back guarantee if for any reason you are not satisfied with the product.

See Our Featured


  • There is an official website for Phenolox, and the product can be ordered directly from the official website.
  • There is a money back guarantee.
  • There is a full comprehensive list of ingredients for the product available.


  • This product should not be taken if you have any kind of heart or blood pressure problem, or if you have any family history of these ailments.
  • Some experts warn that Citrus Aurantium can increase the risk of a stroke or heart attack.
  • We are not told what distinguishes Phenolox from other products containing the same ingredients for sale on the market.
  • The market is swamped with products which contain Green Tea Extract as a major active ingredient.


Unfortunately, at the end of the day there is nothing revolutionary about the product, Phenolox. All of the ingredients in Phenolox are available in other weight loss products. We are not given any information as to what distinguishes Phenolox from these other products, such as the concentration of active ingredients that has been used. As things stand we cannot see a reason to pick it over and above other similar weight loss products for sale on the market today.

14 User Reviews About Phenolox

Leave comments below
  • 1

    Wonderful exapanltion of facts available here.


  • 2

    Just finished my first bottle and now buying my second. People at Natural body recommended taking a thyroid protector to take with it so well see how it goes. I lost weight but it’s only because it took my appetite away completely. I could literally go the whole day without eating so I lost a few pounds. Bad side is once i stopped taking it for 3 days it didn’t work until the next few consecutive days of taking it. Definitely gave me the good clean energy feeling. I am recommending this product to my friends who are sensitive to caffeine.


  • 3
    Jennifer pratt

    Any reports of hair loss while using phenolox for long period of time?


    Your Name

    My co worker is half way through her bottle and said she thinks it is making her lose lots of hair. I haven’t experienced this and I finished a whole bottle.


  • 4

    On the front of the bottle said: no Yohimbe in it – but on this page Yohimbe is listed as an active ingredient? This product contained Yohimbe or not?


  • 5

    I have been taking for 40 days. Works great. Lost over 20 pds. Just started new bottle and am now having a very bad red rash on face and extremities about 10 minutes after ingestion. Very hot! Takes 45 minutes to clear. A bit scary and left me with a headache. Not sure what the new bottle has that the old one did not. Has happened to a few of my friends that have taken it too. A bit afraid to take it again.



    Ive just had the same reaction today…come to find out that there is a bad batch and something to do with the Niacin. the batch # is 2541 10 16. My other bottle did not have the same issues and it is a differnt batch #. I am going to call Metabolic Nutrition tomorrow and see what they can do as far as a return. hope this helps.



    I have been wondering why the 2nd bottle I started taking did the same thing. Same batch # too. I hope the company does something about this, not fun.


    Joyce benoit

    This very interesting. I’ve been experiencing a itching//hot or burning episode around my lips, both arms, neck and head only in the morning and not every day. It last 20-30 mins and leaves me slightly washed out. I just emailed my doctors nurse. I’ve been searching all evening for drug interactions then stumbled on this thread. The batch of Phenolox is 2540 10 16. The previous labels were red and this one is orange. I’ve wondered about this since I rec’d it.


    Your Name

    I had a similar reaction. I think its the Niacin flush. I informed the company and received a new bottle that did not have that effect.


    Just started taking it , how many capsules did you take a day to lose 20 pounds in 40 days?


  • 6
    martha baggett

    Ilike this product,but within hours it gives me a terrible head ache,please let me know why this is happening.I tried to leave a message on the phone but,could not.



    You might be drinking a lot of water, but if not you need to. I was taking Synedrex for 3 months and I drank a minimum of 90 fl oz of water per day.May have to do the same thing with this product.


  • 7
    Violet Martinez

    I’m interesting In taking this product.


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