Updated: 07/18/2017

Best Slim Review- Does This Dietary Supplement Work?

  • 6 User Comments
  • Rating: 2.9. From 31 votes.
By Summer Banks Jul 02, 2017

I was interested by the mention of Best Slim the other day, so I decided to look into the supplement to see if it really works. I dug around looking for side effects, ingredients, clinical research and customer service. Then, I tried to find a collection of user reviews online. Finally, I condensed and refined to give you the bottom line.

Best Slim Readers: Click here to find out why we're giving away samples of our product, Dietspotlight Burn.

What is Best Slim?

To begin with, Best Slim is a supplement made with a blend of cassia seed extract, coicis extract, mulberry leaf extract, lotus leaf extract, mustard extract and medical amylum. The user is to take 2 pills daily with meals. Best Slim supposedly supports weight-loss. One plus to this particular supplement is that it is easy to take.

Best Slim is “made in the USA” by Best Group USA. That’s interesting because the description below the product name is written in Vietnamese. The pills seem easy to take and they aren’t as expensive as some other supplements we’ve come across, but read on…

Best Slim Ingredients – “None Listed?”

The first thing that bothered us about Best Slim ingredients is that they aren’t listed on the official website. “Under no circumstance should someone buy a supplement that doesn’t list its ingredients openly,” says our Research Editor.

The supplement costs about $35.00 for 60 capsules, which would be a month’s supply. If the ingredients list we found from another source is correct, that would be $35.00 worth of laxatives. None of the listed ingredients directly support weight-loss.

Legal Standing – “Bad”

Upon searching the product online, we discovered an FDA safety alert for Best Slim. Apparently, the makers of failed to list sibutramine on the label. This ingredient is banned ingredient because of potential side effects.

Best Slim with an expiration date through 2016 has been recalled and Bestslim.net is no longer available. Advanced Best Slim is still available on the Best Group’s website.

If even one element of a weight-loss supplement is a little bit off, the chances of long-term success are pretty slim. If Best Slim is not honest and open about ingredients, the dieter may want to keep looking.

The Science – “Validated?”

Not surprisingly, there isn’t any science to back up Best Slim’s claims. In fact, several of the ingredients have been proven to have a laxative effect. Furthermore, sibutramine has been linked to potentially harmful side effects. We at Diet Spotlight place a lot of value on scientific research. Supplements that ignore this don’t rate very highly for us.

Bottom Line – Does Best Slim Work?

Is Best Slim worth a shot? Should we race out for some? It’s difficult to trust a company that sneaks a banned substance, like sibutramine, into a supplement, so we are hesitant to give the green light. The Best Group is not open about the current formula for Advanced Best Slim. Lastly, the cost of $35.00 is not warranted for a laxative-based product.

If you need to burn fat or shed unwanted weight, we suggest looking for a product that is shown to work, rather than spending money on ingredients that won’t help you reach your goals.

Among the best supplements we’ve seen this year is one called Dietspotlight Burn. It offers a proprietary blend of four ingredients that are clinically proven to help spark your metabolism and fat-loss. It doesn’t come with risk of harmful side effects. User reviews around the web are great too.

The makers of Dietspotlight Burn are offering a special trial offer right now, so there’s confidence in the product.

Previous Best Slim Review (Updated April 17, 2012):

What You Should Know About Best Slim

Best Slim offers an official website and online ordering. The website is not as professional as major diet company websites, but it offers a bit of information on the product and contact information for CTV Best Group in Union City, GA. Best Slim is the only product sold on the website, but it looks like the site is set-up to carry multiple products.

We found it interesting that the ingredient list in Best Slim is identical to Beautiful Slim Body, a supplement we have reviewed in the past. The fact that two supplements contain the same ingredients leads us to believe the two are one in the same. It is simple to give a diet supplement a new label and a new name.

List of Ingredients

Cassia Seed Extract, Coicis Extract, Mulberry Leaf Extract, Lotus Leaf Extract, Mustard Extract, Medical Amylum.

Product Features in Best Slim

Cassia is the first ingredient on the label and likely the most concentrated. Cassia is another name for senna and senna is a laxative. Laxatives are sneaking into the weight loss world right and left, but there is no known weight loss benefit associated with cassia or other laxatives. The companies selling these supplements sell a lie. Laxatives cause increased bowel movements that may tip the scale for a few days. Soon after, the body will just produce more waste and the weight will return.

Coicis Extract is also known as Job’s Tears. Job’s Tears is a source of fiber. It also has antioxidant properties. The fiber will likely increase waste removal supporting the laxative effect of cassia seed.

None of the ingredients in Best Slim will increase metabolism or decrease appetite. The ingredients are included to calm the stomach and increase bowel movements. Dehydration and electrolyte imbalance could occur after a few days. Prolonged use is not advised.

Advantages of Best Slim

  • Ingredients for Best Slim are listed on the official website.
  • The supplement may help relieve occasional constipation.
  • Testimonials are listed on the official website.

Disadvantages of Best Slim

  • Best Slim is identical to Beautiful Slim Body.
  • The price is higher than other laxatives.
  • Laxatives are not safe for long-term use.


We noticed immediately that Best Slim was being sold on a website created just for this supplement. We are not sure the history of the supplement, but we are pretty certain the company behind the website is not the manufacturer. Companies simply have to contact supplement formulators with an idea and an ingredient list. The formulator will create the supplement and wrap a label on the outside. Some formulators will even store and ship the product for a small fee. We believe the company behind Beautiful Slim Body is behind Best Slim.

Best Slim Ingredients and Supplement Facts

Serving Size: NL
Serving Per Container: NL
Amount per Serving% DV
Cassia Seed Extract**
Coicis Extract**
Mulberry Leaf Extract**
Lotus Leaf Extract**
Mustard Extract**
Medical Amylum**

Other Ingredients: None

We focused closely on the Best Slim ingredients to give you all of the important information you need.

Cassia Seed Extract

Cassia seed is a popular Chinese herb that is sometimes used to treat liver and kidney problems, eye infections and constipation. It’s consumed as a tea, in supplements, as a powder or as an oil.

What is it Supposed to Do?

Cassia seed extract is often used in diet supplements and cleansing teas as a laxative. It may also help lower cholesterol and regulate blood glucose levels.

Clinical Research

Some research has been conducted with cassia seed. According to NCBI.gov, one study involving rats concluded that, “Cassia seeds have beneficial effect on postprandial blood glucose control, which may be partially mediated by stimulated insulin secretion from the pancreas.”

Clinical testing is an important part of the equation when it comes to choosing a diet supplement that best suits your needs and goals. Therefore, you may want to take a look at a product like Dietspotlight Burn. It contains powerful ingredients that have actually been researched.

Coicis Extract

Also known as Job’s tears, coicis extract is a branched grass with broad leaves. It commonly grows in regions such as Pakistan, China, Malaysia and India. This herb is used in some traditional medicine to treat arthritis, allergies, cancer, high cholesterol levels and hay fever.

What is it Supposed to Do?

Coicis extract contains certain chemicals that may help fight free radicals and bacteria, while preventing the growth of cancer cells. It’s sometimes used in over-the-counter diet pills to lower triglyceride levels and reduce fatty tissue.

Clinical Research

One study, published in the Journal of Ethnopharmacology in September 2008, found, “extracts of Job’s Tears significantly inhibited fatty acid synthase activity in the liver. This is important because human cancer cells contain high levels of fatty-acid synthase, a substance linked to aggressive tumor cell growth.”

Mulberry Leaf Extract

Mulberry leaf is a well known herb that is sometimes used to treat type 2 diabetes, high blood pressure and high cholesterol levels. This ingredient is found in some diet products and health supplements.

What is it Supposed to Do?

Often mulberry leaf is claimed to aid with weight management by regulating blood glucose levels. More specifically, this herb may help slow down the rate your body breaks down sugars.

Clinical Research

Some research has shown that mulberry leaf may affect blood sugar levels. For instance, “In a study published in the journal Diabetes Care in 2007, researcher Mitchell Mundra claims mulberry leaf lowers blood glucose levels and obstructs your absorption of sucrose by 21 percent.”

Is There Anything Out There That We Think TRULY Works?

We have our eye on a supplement that really stands out. Dietspotlight Burn, which is formulated with ingredients that HAVE been clinically researched, may be a solid option. All customers can take advantage of a special trial offer, currently available. Click here to give it a try.

Best Slim Questions & Answers:

We dissected hundreds of user comments about Best Slim and placed them into this helpful FAQ.

What are the side effects of Best Slim?

Best Slim side effects, according to some resports, are headache, increased blood pressure, anxiety and sleeplessness.

What are the ingredients in Best Slim?

Best Slim ingredients are cassia seed extract, coicis extract, mulberry leaf extract, lotus leaf extract, mustard extract and medical amylum.

Does Best Slim work?

The official Best Slim website offers information about the benefits of the diet pill, but the company doesn’t provide clinical research proving it helps with weight-loss.

You may want to take a hard look at Best Slim and consider going with a supplement like Dietspotlight Burn, which contains a formula proven to work and that’s backed by published scientific studies.

How much does Best Slim cost?

Best Slim costs $15.95 for 60 capsules. One bottle lasts 30 days.

How should I take Best Slim?

You should take one Best Slim capsule in the morning, prior to eating, and another mid-day.

Can I take Best Slim if I have a health condition?

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

What do users like about Best Slim?

The cost seemed to be what users liked the most about Best Slim.

What do users NOT like about Best Slim?

Some users didn’t like the negative side effects of Best Slim.

How do I contact the Best Slim customer service department?

You can contact the Best Slim customer service department by calling 1-888-417-2667, mailing correspondence to the corporate team at CTV Best Group USA P.O. Box 956452 Duluth, GA 30096 or by sending messages via the feedback form.

Has Best Slim been recalled?

Yes, Best Slim was recalled in 2013 for containing the banned ingredient sibutramine.

What are the side effects of Best Slim that contained sibutramine?

The potential side effects of Best Slim that contained sibutramine included nausea, diarrhea, agitation and increased heartbeat.

Does Best Slim come with a guarantee?

Yes, Best Slim comes with a guarantee. You have 14 days to return the supplement so the company can refund to purchase price.

Do you know of any special deals or discounts on Best Slim?

There are deals and discounts on the Best Slim website, just not for the supplement. However, we’ve seen a spark from our readers over the past few months because of Dietspotlight Burns’s special trial offer, which is simply the cost of shipping and handling. Click here to give it a go.

Learn More About Dietspotlight Burn »
Summer Banks Dietspotlight Author
About the Author:

Summer Banks, a content strategist at Dietspotlight, 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: 2.9. From 31 votes.
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Best Slim Review

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Leave a comment or review

  where to get this product?

how & where to get this product

Maribel (Editor)

Hi Chuen! We’re not affiliated with the company.


ive taken best slim and I lost a lot of weight unfortunately I have gained it all back due to having a beautiful baby girl so now I am looking for it!!!!!!!!

Maribel (Editor)

Hi! We’re not affiliated with the company and do not sell the product.

  why getting goosebums and sweating?
lucienne (Verified User)

why do i get goosebums also sweeting but not lost any weight

Maribel (Editor)

Hi Lucienne. Please make sure to consult with your physician before continuing to take this product and let them know about the side effects you were experiencing.