Updated: 04/18/2017 - Site operated by Leptigen

Lean EFX Review - Does This Belly Burner Work?

  • 70 User Comments
  • Rating: 3.8. From 16 votes.
By Summer Banks Apr 05, 2017

We’re all searching for the right diet product. That’s why we decided to concentrate on Lean EFX side effects, ingredients, clinical studies and customer service. Furthermore, we scrutinized hundreds of consumer comments and reviews. We then condensed and refined to give you the info you need.

Lean EFX Readers: Click here to find out why we're giving away samples of our product, Leptigen.

What is Lean EFX?

First off, Lean EFX ingredients are caffeine, cassia nomame, taraxacum, green tea extract, bearberry, thiamine disulfide, 1,3 dimethylamylamine, phyllanthus emblica, bitter orange, 5-hydroxytryptophan, n-acetyl tyrosine, ginseng. The supplement promotes weight-loss by helping you reduce body fat. The recommended serving is one capsule per day. The company does suggest not using for more than 45 consecutive days.

Lean EFX was introduced as a fat burner by Formutech Nutrition in 2009. You have the ability to purchase the supplement through the official website and trusted retailers. We do like that we found some positive customer comments and that it contains a few natural ingredients, but read on…

Lean EFX Side Effects – “Not the Good Kind!”

The first concern centered on Lean EFX side effects. “When dieters take a supplement containing caffeine, there is a chance they will feel more alert or energetic,” said our Research Editor. “But, a formula containing multiple stimulants could cause negative reactions.”

“I took my first pill at about noonish and 10 to 15 mins later I was dizzy and had a headache,” said a dieter.

“Approximately 15 mins after taking it she had the chills through her body,” reported a customer.

Side effects are rare. We found some users that didn’t mention negative reactions.

“Within 15 minutes you start feeling the boost, and within 5 minutes of my workout I get an intense sweat going,” commented a customer.

Ineffectiveness – “Losing Any Weight?”

According to customer comments, Lean EFX ingredients weren’t effective. “I haven’t lost any weight I have only been taking it for five days,” reported a dieter.

“After taking it for about 3 days or so…no energy boost and no curb in my appetite,” commented a customer.

On the other hand, some users did notice results. “I started taking this this morning with a healthy diet. Starting to feel the energy boost,” said a user.

“The clean energy is pretty good,” commented another.

Based on our years researching supplements, we’ve found that any particular aspect of a supplement deemed concerning, like it not producing results, could reduce the chances of long-term success. If you use Lean EFX and don’t lose weight, isn’t it time to consider an alternative?

The Science – “Research-Based?”

The official website states Leaf EFX is “formulated to help reduce body fat and sculpt your body”, but how? The inclusion of green tea could possibly boost metabolism, but the amount isn’t disclosed. But, there’s no published clinical research connecting the ingredients and weight-loss. Also, the multiple stimulants in the formula are linked to serious side effects. At DietSpotlight, solid science is a critical part of the review process. If a company can’t provide the facts, why bother buying it?

The Bottom Line – Does Lean EFX Work?

Is Lean EFX the right one for weight-loss? Well, we like that we found some favorable customer comments and the reasonable price, but we’re concerned about this one because there’s no connection between the ingredients and you losing weight. We’re also a bit hesitant about suggesting it due to customer complaints about it not producing results and causing adverse reactions.

Weight-loss is a journey. On your path to success, we suggest going with a supplement containing ingredients shown to work and not connected to harmful side effects.

Among the best products we’ve seen this year is one called Leptigen. The formula promotes weight-loss by featuring four clinically-tested ingredients, which has been shown to help ignite metabolism and boost fat loss. We haven’t heard anyone talking about harmful side effects and reviews around the web show customers are seeing great results.

The company behind Leptigen is so confident in their supplement, that they’re offering a Special Trial Offer; an excellent choice.

Previous Lean EFX Review (Updated February 27, 2014):

Lean EFX: What You Should Know

Lean EFX is a supplement manufactured by Fahrenheit Nutrition. The official homepage opens with a front page showing testimonials from a very fit man and woman who claim to have taken the Lean EFX supplement. Once inside the site, there is very little information on the actual product aside from a few sentences, ingredient list, order page and contact page. No clinical trials or additional testimonials are available on the website.

List of Ingredients

Next Gen EFX: 1,3,7-trimethylxanthine, Cassia Nomame, Taraxacum, Green Tea Extract, Bearberry, Niacin. Thermo EFX: Thiamine Disulfide, 1,3 Dimethylamylamine, Phyllanthus Emblica, Bitter Orange. NueroTherapy EFX: 5-Hydroxytryptophan, N-Acetyl Tyrosine, Ginseng.

Product Features of Lean EFX

Lean EFX claims to increase weight loss and improve mood. Several fat burners also claim to improve mood like Lean Body For Her Fat Burner. The ingredient list is broken up into three proprietary blends. Each blend includes one major ingredient that is commonly found in other supplements. Next Gen EFX contains green tea extract. Thermo EFX contains bitter orange and NueroTherapy EFX contains 5-Hydroxytryptophan. Green Tea Extract is proven to increase weight loss, by Lean EFX does not publish clinical data to support the ingredient. This is not the best choice, but information is scarce from every angle on the website. Bitter Orange is a stimulant that works similarly to Ephedra. Zenalean Pro, BeeLean Extreme and other stimulant-packed products contain Ephedra. Increased heart rate and blood pressure can be expected when taking bitter orange. 5-Hydroxytryptophan is thought to counteract depression and anxiety, though few research studies have proven this claim to be correct. There have been studies that showed increased blood pressure, or hypertension, associated with taking the ingredient. Niacin is also included in Lean EFX. Niacin is a tricky ingredient that may be included to fool the user into thinking the supplement has a thermogenic effect. Niacin causes flushing, which means the face and body feel hot. Dieter may believe this reaction is proof the supplement works to increase fat loss. Dieters using GPS 14 to Lean also say that the ingredients simply don't work. One bottle of Lean EFX (45 count) sells for $49.99. If the dieter wants to order the product in bulk, there is a discount associated with larger orders. Lean EFX does not support social networking.

Advantages of Lean EFX

  • Green tea is a good weight loss ingredient.

Disadvantages of Lean EFX

  • The website for Fahrenheit Nutrition lacks information.
  • No ingredient amounts are listed on the website.
  • Few testimonials are available.
  • Ingredients like Niacin can cause deceptive physical reactions.
  • 5-Hydroxytryptophan is associated with hypertension, or high blood pressure.


Lean EFX will not likely cause the increased weight loss a dieter is looking for. The proprietary blends leave dieters wondering how much of each ingredient is included and that is not how trust is established. Testimonials are scarce and information about the product is limited to just a few sentences. Fortunately the information it does provide is not nearly as disheartening as that of Primal Force Primal Lean. We support natural fat burners created by companies willing to share information and testimonials.

Lean EFX Questions & Answers:

We slimmed down hundreds of customer comments about Lean EFX into this helpful FAQ.

What are the side effects of Lean EFX?

The potential side effects of Lean EFX, based on customer reviews, include upset stomach, jitteriness, irritability, nausea, increased heart rate, dizziness and sleeplessness.

What are the ingredients in Lean EFX?

The ingredients in Lean EFX are caffeine, evodiae fructus, green coffee bean extract, l-phenylalanine, l-theanine, n-acetyl tyrosine, l-5-hydroxytrytophan, panax ginseng, 1,3 dimethylamylamine, phyllanthus emblica, cassia nomame and green tea extract.

Does Lean EFX work?

There’s no published clinical research available on the official website proving Lean EFX will help you lose weight or burn fat. We located solid science backing green tea, but this ingredient can be found in thousands of other supplements.

Why not switch things up and replace Lean EFX with a supplement like Leptigen, which contains ingredients backed by published scientific studies.

How much does Lean EFX cost?

Lean EFX costs $49.95 per bottle and contains 60 capsules. If taken as directed, the supplement lasts 30 days.

How should I take Lean EFX?

You should take Lean EFX twice per day, once after waking and another mid-day. The company recommends not using on an empty stomach or in the evening.

Can I take Lean EFX if I have a health condition?

Women who are pregnant or nursing, anyone taking prescription medications, people under 18 years of age or those with health conditions should seek the advice of a healthcare professional prior to using any weight-loss supplements, including Lean EFX.

What do users like about Lean EFX?

Some users like the affordability of Lean EFX and that it’s available at various online stores.

What do users NOT like about Lean EFX?

Some users didn’t like the side effects associated with Lean EFX, plus we found numerous reports from dieters who lost no weight.

How do I contact the Lean EFX customer service department?

You can contact the Lean EFX customer service department by using the consumer feedback form, calling a representative at 1-800-920-5819 or by mailing correspondence to Formutech Nutrition 6015 B Unity Dr. Norcross, GA 30071.

Do I need to diet and exercise with Lean EFX?

No, you don’t HAVE to diet or exercise when taking Lean EFX, but it will certainly help most users see faster results.

If I take more than the recommended serving of Lean EFX, will I lose more weight?

No, you will not lose more weight if you take more than the recommended serving of Lean EFX. The company suggests using no more than two capsules per day.

Does Lean EFX come with a guarantee?

No, Lean EFX doesn’t come with a guarantee.

Do you know of any special deals or discounts on Lean EFX?

There’s no information about special deals or discounts on Lean EFX. But, the last several months have simply flown by with our readers taking advantage of Leptigen’s Special Trial Offer, which is just the cost of shipping and handling. Click here to give it a try.

Lean EFX Ingredients and Supplement Facts

Serving Size: 1 capsule
Serving Per Container: 60
Amount per Serving % DV
Vitamin B3 40 mg *
Vitamin B6 12 mg *
Next Gen EFX 456 mg *
-Caffeine * *
-Green Coffee Bean * *
-Evodiae Fructus * *
-Cassia Nomame * *
-Dandelion Root * *
Thermo EFX 109 mg *
-L-Phenylalanine * *
-L-Theanine * *
-Acetyl L Carnitine * *
-Hoodia Gordonii * *
NueroTherapy EFX 140 mg *
-N-Acetyl Tyrosine * *
-L-5-hydroxy Tryptophan * *
-Panax Ginseng Root * *
Gama Aminobutyric Acid * *

Other Ingredients: Silicon dioxide and magnesium aspartate.

Get Your Sample Today »
Dietspotlight Author
About the Author:

Summer Banks, a content strategist at Leptigen, has researched over 5000 products in the past 10 years. She has years of nursing training, experience as a manager responsible for 15 supplement brands, and completed coursework on Food and Nutrition from Stanford University. full bio.

Rating: 3.8. From 16 votes.
Please wait...
Lean EFX Review

How Does Lean EFX Compare?

User Comments

70 Comments on "Lean EFX Review"


Sort by:   newest | oldest | most voted

Ive been a powerlifter for 20+ years and ive tried anything as long as it was natural over the years but Ive been taking for 2 weeks now my energy is incredible, no jitters, my work outs are lasting longer, i burning weight daily and im only taking one pill daily im cosidering upping it to 2 pills . Great product will continue to use


love it the focus energy lost 15 in 2 weeks just with a diet change no soda or heavy carbs lean fruits and veggies,no beer,I’ just adied the gym to the mix it does make you go to the bathroom quick Def detox I love it I feel great it works better than everything. I took it for two weeks once early by 9 am and I take another about 3 4 o’clock I’m 6 3 215lbs now I’m 200 it makes you go to the bathroom early then your good I love the energy needs focus I just now added the gym ,I did stop drinking alcohol and changed my diet to lean fruits not vegies


I’ve used effect lean twice one when I was at 190 pounds and went down to 153 and then had had my son I was at 163 and now I’m 146 and I absolutely love this product and will you this time and time again


Have only been taking it for a few days and feel very gittery, cannot sit still. Was wondering if the side effects go say after your body gets used to this pill

Devon (Editor)

Ideally when you get used to the formula you wouldn’t experience further side effects.


Hey everyone I weigh about 151 pounds and i am a 15 year old boy. I am like 5’5 and I was wondering if I should take this product to lose some weight. Maybe like 10lbs so my stomach become slimmer and I can start to build some muscle. Should I take Lean EFX? i want to because of all the great comments but i am also skeptical.


Reading all the reviews I can’t wait to start it.


im type 2 diabetic and i take insulin. would this product be safe for me?


I need help lean efx pill am i doing something wrong?
i herd from a few people loosing like 3 pounds on just five days of the pill and i haven’t lost any weight i have only been taking it for five days but i expected to loose a pound at least i eat a bowl of cereal in the Morning at like 8-9am and take my pill right after about 11am i work out for thirty minutes have a protein shake at around 3 i have a snack at around six have some dinner i don’t have more then 1200 calories a day after dinner around nine i walk run a mile and then come home and do like 13-30 min cardio and have another shake and drink nothing but water all day have seen no results yet my weight is the same what am i doing wrong??? help please 10pts first answer!!!
could it be my lack of sleep?? i have a baby girl that keeps me up alot and her sleeping scehdule is messed up so now mine is to so i get like four hours of sleep :/


You are not eating enough. Your body could be going into starvation mode. Take in more good calories and increase your workout to 60 mins a day.


the first 4 days of taking the pill i lost 5 pounds which made me happy. i also did not get alot of sleep. i want to keep taking the pills but now i have had trouble breathing i cant seem to take in enough air. i dont know if its because of the pills or whats going on.


I just purchased Lean EFX this evening. After reading everyone’s post, I’ll wait until tomorrow morning, at 5:30 to take it. I am very optimistic about this product.


Tomorrow will be a full 7 days of me taking Lean EFX, and I love the energy and appetite suppressant. I have lost 8 pounds so far, and I feel great! My starting weight loss goal was 30 pounds, and I have not doubt that I will meet that goal. I take the pill before 6 in the morning, after eating two cups of yogurt, and I have not had a stomach ache, or felt any of the side effects others have mentioned. By 9pm every night, I am tired and sleep very well. I’ll post again in a week. Good luck to all those who are considering trying EFX! smile


Efx worked great for two weeks and had no effect what so ever after that.I loved the good feeling I had but I must have beccme immune after two weeks. I sure wish the company would give me a free bottle, so I could try again! I did lose ten pounds. I can’t afford to buy another bottle to lose only ten pounds!


Product has same side effects like everybody mentioned. It does give me crazy hunger? Any ideas why? I’ve lost maybe 3lbs in the past 2-3 wks..but I only weight 110


I started taking this pill 2-3 weeks ago. The first day it gave me this big flush on my ears and neck…I thought I had a rash. I’ve been eating a fairly good/ light breakfast – take it by 7:30 or so. I don’t see a change with my energy..if anything I feel sometimes tired. The flush effect I’m trying to drink water and eat in the morning. But….seriously this pill is making me super hungry…hungry all the time I def. have to snack between meals. Any idea why this pill is making me so hungry? I weigh 113 have maybe so the scale says lost 3 lbs..so the scale says.




I took my first pill of Lean EFX on May 18th weight in at 161 pound im 5’3 i would like to shed my baby weight that has hung one for 3 years now, my goal weight is 125-130 pound ill be happy today is May 25th I weight in on May 23 at 158 pounds so 3 pounds down so far, I am going to weight myself once a week cannot weight to weight in next week. The first two days on lean efx i felt a burst of energy , flushing and headache. I started to drink more water and fixed my diet no headaches no flushing and no trouble sleeping, Right now i have a nice level of energy that last thru the day no side effects. I def. recommend drinking a lot of water its helps so much, I have been going to the gym every since starting the pill for 45 minutes straight cardio. I am making sure i eat every two hours, i noticed when i dont im really hungry at the end of the day and end of munching way to much so to keep the energy up make sure you snack every 2 hours. The pill does supress hunger but make sure you remind yourself to eat you want to be realistic so make sure you eat, once you choose to get off the pill you want to make sure you can keep the weight off on your own eating regularly. I am very excited and have a goal date of August 9th, i leave to miami the next day so ill check back and post my results wish me luck.! good luck to all of you on the same roadsmile

Katie boo

I started taking this this morning with a healthy day of food. I don’t feel any different. Does it take a few days or is it not going to work for me?


I took this with food and plenty of water at 9am YESTERDAY morning. I didn’t even begin to be able to “sleep” until about 10am today. The energy level is way too intense for something that is supposed to be a leagl drug. I really wish I had looked more in depth at the ingredients and what they all do in conjunction with each other. I managed to take an hour nap today, and still feel horrible. My mind is foggy, and I feel as though I am disconnected. I’m sure this pill works differently on everyone because not everyone is the same weight, sex, and what not, but this thing is ridiculous! My anxiety levels are pretty high today, which I’ve read others have experienced as well. Feels like I am on edge, which I’m sure is a combo of this pill and a very much lack of sleep, but its miserable. I’ve read in other forums that taking 5-HTP can help ease the anxiety and/or depression associated after takind Lean Efx- has anyone tried this? I just really want this junk out of my system, any and all suggestions are appreciated!!


I started taking Lean EFX on Nov.1,2011,and got great results.I weighed myself that morning, and my scale read 197.7 lbs.I am 5’2″ and should only be weighing 120lbs.Well,by mid Feb., I lost 52 lbs…so that brought me down to 145lbs.I look and feel like a new person.My co-workers,family and friends, were amazed.Some were accusing me of being on drugs, and starving myself.Lol!!! I’ve never tried any type of drugs in my life. And along with taking Lean EFX,I got a membership at a gym, I eat very healthy and last but not least, my 3 girls keep mommy very busy. Went from a size 14 to a size 6/7 in just a few months.I love the new me and so does my boyfriend…I recommend you try it. Remember, eat healthy, no junk foods, exercise at least 3 days a week, plenty of water,and don’t starve your body.A big mistake a lot of people make. Our bodies are like our vehicles, they need fuel to operate. Good Luck!!!


I started taking these last September to help with losing baby weight (I had my baby in December 2009). I was getting very discouraged because I had been running 5 miles a day and had not lost any weight at all. I got my thyroid checked, and that was fine. The guy at the health food store told me about these, so I bought a bottle to try. I lost 20 pounds within 45 days on the first bottle. It was amazing! I have been taking them on and off since then and I now weigh 15 pounds less than I did before I got pregnant. This stuff works great! I have lost 35 pounds total and everyone keeps asking what the secret is, since they all knew I had been running forever but then suddenly started losing weight, too. I didn’t like the flushed/hot feeling that I got initially, but that went away fairly quickly.

Brandy Stice

will lean efx make u fail a yrine test


I heard about this product from a State Police Officer. He said several of the officers were taking them for weight loss. I am sure that you will not fail a drug test taking these.