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

Avesil Review - Does This Weight-Loss Supplement Work?

  • 908 User Comments
  • Rating: 3.6. From 2964 votes.
By Summer Banks Apr 13, 2017

Don’t laugh, but well over 50% of diet products simply don’t work. So what about Avesil? We at DietSpotlight conducted a thorough review, investigating the ingredients, side effects, clinical research and overall customer service. We additionally looked at countless dieter comments and user experiences from all over the web. Finally, we compressed all of the facts and feedback we collected to give you the important information you need.

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

What is Avesil?

First off, Avesil is marketed as a fast and safe weight-loss formula for women and men. This supplement assists by reducing appetite, boosting energy levels and burning off unwanted body fat. It contains four key ingredients, which include Meratrim (400mg), Green Tea Extract (200mg), Chromium (100mcg) and Natural Caffeine (75mg). This product aims to boost thermogenesis so your body burns off more calories and fat. One capsule of Avesil is a serving, and this product can be taken twice daily, 30 minutes before meals for maximum results. While it is not mandatory, you may see better weight-loss results if you follow a healthy diet plan and exercise at least three times a week.

Avesil was originally released back in 2008, and this supplement is readily available online through the official website and on Amazon. Furthermore, you can receive a 14-day trial of Avesil for only $5.95 if you fill out your name and address on the official website, but read on…

Mild Side Effects – “A Consideration?”

The first minor issue was with Avesil side effects. According to our Research Editor, “There have been a few minor complaints about mild reactions. For instance, some users mentioned stomachache, nausea and intestinal discomfort.”

“It seems to work, but it gave me a slight tummy ache,” said one user.

Another customer commented, “Definitely reduces my appetite, but causes a bit of nausea as well.”

Lack of Availability – “Not in Stores?”

Some dieters will be disappointed that Avesil is not sold in stores. It must be obtained online. One person stated, “It would be nice to see this product available in drugstores, but it’s apparently only sold on Amazon.”

“You have to buy Avesil online, which is kind of disappointing. I prefer when products are available locally,” mentioned another individual.

The extensive research we’ve done has shown if there is a certain facet of a diet program or product that is quite concerning or bothersome (mild side effects, lack of availability, bad taste) the probability of lasting weight-loss results is low. In other words, if the fact that Avesil is not found in stores does bother a lot of people, this could be a real problem.

Is There Any Solid Science?

At DietSpotlight, we need to see some real clinical research that supports the weight-loss product. Fortunately there are some solid clinical studies that back the claims regarding Avesil ingredients. The four key pieces of the formula are part of valid clinical studies, which is certainly reassuring.

The Bottom Line – Does Avesil Work?

So, should you buy Avesil? Well, first and foremost, we appreciate that Avesil contains clinically tested ingredients that are completely natural. On the other hand, it’s unfortunate that this weight-loss formula is not readily available in stores. Then again, we like that it is suitable for women and men trying to lose weight, and it’s easy to find on major websites such as Amazon. There are even some customer testimonials posted on the official website.

If you’d like to get rid of some serious pounds, we suggest you go with a diet product that is backed by solid clinical testing, does not cause any harsh side effects, based on user review, and is easy to use anywhere.

Among the best products we’ve seen this year is one called Leptigen. Its formula is a unique but powerful blend of four key ingredients that have been shown in published clinical testing to help ignite metabolism and speed up fat loss. You should also be aware that we found few complaints of side effects and the customer feedback posted on the web indicates people are seeing solid results.

The makers of Leptigen are so satisfied with their product they’re offering a Special Trial Offer, which is a good sign.

Previous Avesil Review (Updated May 1, 2014):

What You Should Know

avesil-bottleAvesil is an innovative new thermogenic weight control product designed to increase your metabolism and reduce body fat percentage. The first thing we noticed was that the company has clearly gone to a lot of effort and expense in research and development. Avesil’s primary ingredients include, Meratrim (recently featured on Dr. Oz), which is a metabolism booster, as well as the fat burner Chromium and Green Tea Extract which also speeds up your metabolism and helps you continually burn fat. Get started with Avesil today by clicking here. It was refreshing to see a weight loss supplement with product claims so deeply rooted in real science, instead of the usual fluff.

How Does Avesil Work?

Avesil has been formulated to work on the basis of thermogenesis - the process that increases the rate at which fat is burned. Currently, research on the process of thermogenesis within the human body has captivated the diet aid industry, and many see understanding this process as the key to developing effective weight loss supplements. With this in mind, the makers of Avesil have included only thermogenic ingredients backed by scientific data showing how the ingredients help support a healthy metabolic rate. The result is a formula which causes your body to burn food as energy, rather than storing it as fat. These ingredients also help suppress your appetite and break down stored fat, a process called lipolysis. Additionally, Avesil claims that it does all this while helping to preserve and maintain lean muscle mass. One of the issues users have found with many weight loss supplements is that they draw water off of the muscles, making it difficult to maintain a healthy overall physique. Avesil seems to do a good job answering this challenge. Finally, regarding our last review criteria -- company customer service -- our experiences with Avesil have been positive. Filling out the trial offer is simple- just enter your address in the "SHIP MY TRIAL TO:" form. With other products, we've had to wait on hold for 20 minutes or more, but several test calls to Avesil customer service were always answered under the 1:00 minute mark. We canceled our order easily, and got both an email and phone confirmation of cancellation.

Product Features

There are only four ingredients in Avesil, and the simplicity of the formula seems to work much in the product's favor. Many other diet supplements include lots of filler ingredients of questionable efficacy that accomplish little when it comes to weight loss. A trick favored by many manufacturers is to include literally dozens of individual ingredients, though in such small amounts that they don't actually produce any benefit, but still look impressive on the product packaging. In these cases, you end up paying for exotic-sounding ingredients that don't do anything except take up space. We were happy to see that with Avesil you are getting only proven dietary ingredients in exact dosage quantities which are consistent with dosages administered in the most significant published research studies that back up the product claims. The four dietary ingredients in Avesil are: Patented Meratrim, Green Tea Extract, O-polynicotinate Chromium, and Caffeine. Here are some of the highlights of how each ingredient works. Patented Nutraceutical Meratrim: 1) It is a metabolism booster that has been shown in clinical trials to help people who followed diet and modest exercise programs lose 30 pounds within 90 days. 2) Supported by randomized, double-blind, placebo controlled human clinical trials. Green Tea Extract: 1) Has been shown in clinical trials to product up to 3 times the weight loss of just a reduced calorie diet program when taken with a similar diet and moderate exercise program. 2) Has been shown in clinical trials to accelerate weight loss after 45 days 3) Increases energy. 4) Supports stabilized blood sugar levels, which can help those with both blood sugar and weight control issues O-polynicotinate Chromium: 1) Helps control blood sugar and glucose tolerance within normal levels. 2) Supports conversion of body fat to energy when working out. Caffeine (it should be noted that the modest amount of caffeine used in Avesil has been shown to produce the following effects without an unpleasant “jittery” feeling): 1) Increases production of ATP (adenosine triphospate), a key in energy production. 2) Stimulates the metabolism of fatty acids. 3) A mild stimulant, increasing energy. 4) Enhances neuromuscular coordination and motor performance. Want to get Avesil today?


  • Ingredients tested and proven in clinical human trials, often in university research labs.
  • Manufactured in the USA, in an FDA inspected facility that meets the strictest Good Manufacturing Practices (GMP) standards.
  • Official product website makes no use of outrageous weight loss claims, phony before/after pictures or unsubstantiated claims.
  • Simple formula with only proven dietary ingredients. Not cluttered with useless fillers.
  • A trial is available for consumers to assess the effectiveness of Avesil for themselves before having to pay for a one-month supply.
  • Trial calls to customer service went through in one minute or less, and our orders of the product arrived in 3-5 business days.
  • Instant email confirmation with detailed trial instructions.


  • Avesil seems to be available only through the official product website.
  • Pregnant and nursing women are advised to consult with their health care professional before taking Avesil.
  • The manufacturer's trial is not available for orders outside of the USA (it seems you can call their customer service # at 1-866-730-3330 to place an international order.)


There are hundreds of weight loss products on the market that make a lot of promises. The Avesil formulation reflects a massive amount of scientific research to certify the product claims, all without added fluff ingredients that cost extra money and do nothing for you. By using only thermogenic and cortisol-reducing ingredients, Avesil appears to provide an effective, safe way to maximize the results of healthy diet and exercise. The manufacturers don’t claim that this will work without some effort on the user’s part, but it will certainly boost any weight loss efforts. In addition to its simple and well-researched product formula, Avesil seems to have superior customer support. All of our calls to their customer support center went through quickly, compared to 20+ minute hold times that we've experienced with other product's help lines. The $3.95 that you spend on shipping gets you a professionally mailed and packaged product; it's affordable and costs about the same as a latté-a-day habit. We tried three sample orders before writing this review and, two times, it took three business days (during the work week) and one time it took five business days (order placed over the weekend) to get to our office. The product's manufacturer references a large amount of published research to back up their product claims, and they also offer a trial for consumers to try the product without having to pay for it if they aren’t happy. We can’t find any other product capable of competing with Avesil on all of these levels, making it our top choice for a weight-control product. Click Here to Buy Avesil

Avesil Questions & Answers:

We picked apart hundreds of dieter comments about Avesil and then made this helpful FAQ.

What are the side effects of Avesil?

Some customers reported the Avesil side effects included mild stomach ache and headache.

What are the ingredients in Avesil?

Avesil ingredients include Meritrim, green tea, chromium, garcinia mangosteen and caffeine.

Does Avesil work?

There are some ingredients in Avesil that have been researched and have been shown to work, such as Meritrim, green tea, chromium and caffeine.

While the combination of ingredients is great, you may want to consider combining Avesil with a fat burner like Leptigen, which contains some clinically-tested ingredients and has been shown to boost metabolism and accelerate fat loss.

How much does Avesil cost?

Avesil costs $89.99, but is available for a trial offer of $5.95 through some online retailers.

How should I take Avesil?

You should take one Avesil capsule, twice per day, about two hours prior to eating a meal.

Can I take Avesil if I have a health condition?

Women who are pregnant or nursing, those with health conditions, people taking prescription medications or anyone under 18 years of age should contact a healthcare professional prior to using any weight-loss supplement, including Avesil.

What do users like about Avesil?

We found that users liked seeing some changes in their weight while taking Avesil.

What do users NOT like about Avesil?

Some users didn’t like mild effects from Avesil, especially if their sensitive to caffeine.

How do I contact the Avesil customer service department?

Avesil is no longer available through an official website, so you can contact the customer service department on the website selling the supplement for details.

How much caffeine is in Avesil?

Each serving of Avesil contains 75mg of caffeine.

Do I need to diet or exercise with Avesil?

You don’t need to diet or exercise with Avesil, but the company recommends adding fitness and healthy eating to improve results.

Does Avesil come with a guarantee?

While there’s no Avesil with Avesil, some of the third-party retailers selling the supplement offer information about the return policy.

Do you know of any special deals or discounts on Avesil?

There are no deals discounts listed on Avesil. However, the last several months our readers have been thinking about losing more weight, so they’ve been taking advantage of Leptigen’s Special Trial Offer, which is simply the cost of shipping and handling. Click here to give it a try.

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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: 3.6. From 2964 votes.
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User Comments

908 Comments on "Avesil Review"


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Daisy Deininger

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Brice Candland

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Hubert Martelli

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water ionizer

I have a challenge that I’m simply now working on, and I have been on the look out for such info.

Hi Nourhan,

We recommend for you to consult with your health care professional before taking Avesil.


Does this work for women in menopause?

Hi Gail, Avesil is actually a thermogenic weight control product; it is not designed to treat or help with menopause.


I’m 70 weigh 184 5 ft. Has diebetice and high blood pressure will I be able to take this diet product

Leptigen Customer Care

Hi Virginia,

We recommend to ask your physician first for any pre-existing condition.


Does this product promote energy level as well?

Leptigen Customer Care

Hi Desar,

One of the ingredients is caffeine and it will help with giving extra energy.

Musaddiq Ijaz

Is this available over the counter in US and/or Canada?

Leptigen Customer Care


Unfortunately our product is only sold online.


Can I take avesil if I am breastfeeding?

Leptigen Customer Care

Hi Mairyn,

We dont recommend to take our product while breastfeeding.


Hello, I have a hard time taking pills and either have to crush them or open them and put them in yogurt or small amounts of food. is it safe to do that with this product?

Hi Amber,

We recommend to take the pill in its whole form as instructed so that the key ingredients can be released into the body in the time they were designed to be released. Consult with your doctor if crushing the pill would be safe for you if you absolutely cannot take the pill in its whole form.


does this contain carrot root powde, green tea extract, and cocoa?

Leptigen Customer Care

Hi Marian,

The four ingredients of the product are Meratrim, Green Tea Extract, Chromium, and Caffeine.


Hi Avesil Customer care,

Where can I get this product in India. What I have to do for the international order?

Leptigen Customer Care

Hi Sandy,

For international order please contact us at 866-730-3330.


What is the ingredient that lowers cortisol?

Hi Sandy,

The four ingredients in our product are Meratrim, Green Tea Extract, Chromium, and caffeine. These all play a role to help reduce cortisol.


I’m breastfeeding mom and we’re trying to have 2d baby. Can I get Avesil?

Leptigen Customer Care

Hi Samantha,

We dont taking Avesil while breastfeeding.


Hi, there,

I am here in Singapore ; and would like to try this product.

May i know if there is any other way ? Thank you.

Leptigen Customer Care

Hi Julie,

For international order please contact us at 866-730-3330.


Does Avesil have B12 in it? I’m just wondering because I was taking B12 as a supplement and got a bit too much. I have a little higher than normal range in my bloodstream right now. So I am avoiding it for the time being. Thank you.

Leptigen Customer Care

Hi Samantha,

Avesil does not contain B12.

donna psaltis

i have high bloodpressure and take toprilxl.50 6 daily nortriptilene .20 at night vivelle patch .01 colodine patch o.1 will any of these meds have a problem with your product thank you donna

Leptigen Customer Care

Hi Donna,

We recommend to ask your physician for any existing condition.

miriam medina

question is this safe to take with my diabetic medication?

Leptigen Customer Care

Hi Miriam,

We recommend to ask your physician for any existing condition.


What is the daily dosage for this product and how many weeks supply is in each bottle? Number of pills and when they must be taken.

Leptigen Customer Care

Hi Rahela,

The product is taken twice daily, each bottle will come with 60 capsules which is a 3o day supply.