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BioSlim Review - Does This Weight-Loss System Work? Are poor customer service quality and unrealistic weight-loss claims deal breakers?

By Summer Banks on Sep 08, 2016
BioSlim Review

BioSlim’s not your grandmother’s diet product. We dug deep into the ingredients, side effects, clinical research and customer service. Additionally, we dissected hundreds of comments and reviews. We then condensed and refined to give you the info you need.


What is BioSlim?

Firstly, BioSlim is a weight-loss system, consisting of green tea, vitamins and minerals. Depending on the product, the recommended serving is once per day. This is supposed to help the dieter lose more weight. One of the benefits is that it’s easy to use.

The product line, launched as a diet program in 1989 by Medicus International, doesn’t appear to use synthetic ingredients in select formulas, a good start. Customers can purchase the supplements on the official website. We do like that the company has been in operation for more than 25 years and some comments are positive, but read on…

Poor Customer Service – “Bad Quality?”

The first concern we had with BioSlim was the quality of customer service. “Consumers willing to invest in a supplement want support in the event of a question or concern,” said our Research Editor. “What they expect is a team willing to address comments in a timely manner. If not, dieters will simply pass on the products.”

“The customer help on the other end was rude, mimicked me and used sarcasm the whole way through the conversation,” reported a consumer.

“I bought BioSlim and BioCleanse. They debited my account and never turned up. I rang in January and they said they were out of stock and would come soon. They still haven’t turned up and now I cannot get hold of them,” commented a dieter.

When we are researching, we typically find some positive comments alongside the negatives. There doesn’t seem to be any support for the customer service department.

Weight-Loss Claims – “Unrealistic?”

According to the testimonials on the BioSlim website, dieters are seeing some pretty amazing weight-loss results, maybe too good. It’s safe to lose up to two pounds a week, but some report losing upwards of 33 a month. “I lost almost the full 200 pounds in just my first 6 months on BioSlim,” one consumer claims.

“Kevin lost 153 pounds in his first 7 months on BioSlim!,” says the BioSlim website.

There are clearly some outrageous weight-loss claims, but some dieters saw more realistic outcomes. One said, “For me it has been good, because I don’t have any of those problems that I had before.”

Another shares, “I’ve been on it for a good few months and had some weight loss. You have to exercise discipline and follow the diet.”

Our research shows that any part of a diet system thought of as a concern, such as outlandish weight-loss claims, could hinder long-term success. If BioSlim says the dieter will lose a ton, but then they don’t, why should they stick around?

The Science – “Any Real Proof?”

The ingredients in BioSlim are simple enough – green tea and vitamins. We like the first because there is some science there, but you can pick it up at a convenience store or vitamin shop for about $5. At DietSpotlight, we feel customers deserve clinical proof and this product has none.

Also: read our Leptigen Weight-Loss Kit review »

The Bottom Line – Does BioSlim Work?

So, with all the facts under our belt, what do we say about this one? The length of time in the industry and the fact that some comments are positive, but we have doubts about it because the weight-loss claims aren’t supported by published clinical research. Plus, we’re concerned about the quality of customer service and the long list of complaints about company sales practices.

If you’d like to shed the pounds, we recommend going with a product that is both cost effective and packed with ingredients backed by published clinical research.

Among the best supplements we’ve seen in 2016 is one called Leptigen. The formula contains a four-ingredient proprietary blend, which has been shown in published scientific studies to help increase fat loss and ignite metabolism. There’s no one talking about adverse side effects and reviews around the web show people are seeing excellent results.

The makers of Leptigen are confident in the supplement, so they’re offering a Special Trial Offer, a good choice.

Get Your Sample Today »
About the Author:

Summer Banks 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.

How Does BioSlim Compare?

Previous BioSlim Review (Updated April 17, 2014):

What You Should Know

Bioslim is a weight loss system that began over 15 years ago. This program involves kits that are suited for adults and also separate ones for children trying to lose weight. The adult kit is called "Bioslim 2000 Ultra Complete," while the children's kit is called "Bioslim Youth System Complete." More specifically, the adult kit contains a "six-week supply of formulas." This involves the Ultra SlimTone Formula (60 tablets), the Bioslim Accelerator (36 tablets), Ultra Vita/Min Plus (60 tablets), a Bioslim Cookbook, Dr.'s Complete VideoGuide, the Quick Start Guide, Dr.'s Health Reference Guidebook, an Activity PocketBox and access to the Doctor's hotline. This whole kit sells for $89.95 via the official website. There are no free trial samples offered.

Unlike some weight reduction supplements and diet pills, Bioslim endeavors to offer a "permanent solution" to weight loss. The three supplements that come with the Bioslim 2000 Ultra Complete kit contain some active ingredients. In the Ultra SlimTone Formula there is Green Tea Extract (assists the metabolism), Bioslim Pyruvate Complex (lowers cholesterol and helps reduce body weight), Chromium Polynicotinate (burns away fat and sugar) and Coenzyme 10 (helps burn fat); in the Ultra Accelerator supplement there is Green Tea, Cotinus, Quercetin, Siberian Ginseng (normalizes blood sugar levels), Calcium (strengthens bones) and Pantothenic Acid; and in the Ultra Vita/Min Plus supplement there is Green Tea, Chromium Polynicotinate, Vitamins A, D and E, Bromelain (metabolizes fat) and a Super-Enhanced B-Complex (helps the immune system). There is a 6-week money-back guarantee offered with Bioslim products. Some customer testimonials are provided on the official website.

List of Ingredients

Not available on the official website.

Product Features

Bioslim is basically a collection of weight loss systems that are tailored for either women, men or children. This program consists of dietary supplements that are taken daily, a cookbook, some workout videos, a health reference book and access to the "Doctor's" hotline 24/7. Some of the key ingredients found in Bioslim supplements are Green Tea Extract (assists the metabolism), Chromium Polynicotinate (burns away fat and sugar) and Siberian Ginseng (normalizes blood sugar levels). The Bioslim 2000 Ultra Complete kit for adults sells through the official website for $89.95. There doesn't appear to be any real clinical evidence presented on the website.

See Our Featured


  • Bioslim can be easily and conveniently acquired through the official website.
  • There is a 6-week money-back guarantee offered with the Bioslim weight loss system.
  • Customer testimonials are posted on the official website.


  • There doesn't appear to be any real clinical data provided on the official website to support the overall effectiveness of Bioslim.
  • Some ingredients found in Bioslim supplements may not be suitable for some individuals.
  • There are no free trial samples of Bioslim supplements offered on the official website.
  • A Bioslim kit may prove to be a tad pricey for some individuals, since it sells for $89.95.
  • This weight reduction system may be a bit too involved for some dieters who prefer a simple capsule that's taken daily.


Although Bioslim offers and interesting take on weight loss with three different supplements, a cookbook, some workout videos, a health reference book and access to the "Doctor's" hotline, it may not be ideal for all dieters. On the bright side, Bioslim kits are offered with a 6-week guarantee. However, it would still be reassuring to see some actual clinical research posted on the official website, along with some free trial samples of Bioslim supplements.

BioSlim Questions & Answers:

We dissected hundreds of user comments about BioSlim and created this helpful FAQ.

What are the side effects of BioSlim?

Some potential BioSlim side effects may include stomach discomfort, irregular bowel movements and nausea, according to user reviews.

What is in BioSlim?

The BioSlim ingredients are coenzyme Q10, vitamins B6 and C, glucomannan, atractylodes, astragalus, chromium, Chinese thoroughwax, gardenia, balloon flower, Siberian ginseng, green tea, cotinus, quercetin, sargassum, laminaria and weight-loss kits.

What is the active ingredient in BioSlim?

The active ingredient in BioSlim varies by product. Most contain essential vitamins.

Does BioSlim work?

There’s no scientific research proving BioSlim is effective. There are studies into the benefits of green tea, but the findings don’t point toward this formula.

You may want to consider mixing it up a little and changing out BioSlim with a supplement like Leptigen, with clinically tested ingredients.

How much does one bottle of BioSlim cost?

One bottle of BioSlim costs $19.95, whereas the weight-loss kits start at $59.95 and go up to $129.90. There’s a discount if you order more than 12 of one item.

How do you take BioSlim?

You should start with taking three capsules of BioSlim Accelerator for 12 days, then take two pills per day of SlimTone Formula and Vita/Min Plus. Each supplement lasts about 30 days, when taken as directed.

Can I take BioSlim if I have a health condition?

Woman who are pregnant or nursing, anyone taking prescription medication, those with health conditions or under 18 years of age should contact at licensed physician prior to starting weight-loss program, including BioSlim.

What do users like about BioSlim?

Some users like the affordability of the products and that official website sells a variety of supplements.

What do users NOT like about BioSlim?

We located comments from users stating they didn’t like the unrealistic weight-loss claims from BioSlim and the difficulty reaching the customer service department.

Who makes BioSlim?

Medicus International makes BioSlim.

How do I contact the BioSlim customer service department?

You can contact the BioSlim customer service department by emailing a representative at service@bioslim.com, calling a live agent at 1-800-246-7546 or mailing correspondence to BioSlim 16869 SW 65th Ave. #318 Lake Oswego, OR 97035.

Does BioSlim contain stimulants?

No, BioSlim doesn’t contain stimulants, aside from green tea.

Why is my urine turning bright yellow on BioSlim?

Your urine is turning bright yellow on BioSlim because of the B-vitamins in the supplements.

Do I need to exercise on BioSlim?

No, you don’t need to exercise on BioSlim, but the company recommends adding fitness to better your results.

Does BioSlim come with a guarantee?

BioSlim does come with a guarantee. You can return any product, except the 2-Adult kit, for a full refund within 30 days of purchase.

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

There are special deals and discounts on BioSlim if you purchase specific kits or order multiple products. However, the past few months have been wild with our readers taking advantage of Leptigen’s Special Trial Offer, which is simply the cost of shipping and handling. Click here to give it a try.

BioSlim Side Effects:

BioSlim is a system that uses teas, supplements, and guide books to help you lose weight. Though side effects don’t happen all the time, we were able to find users who have experienced them.


“I took it faithfully for a month and all I got was sick at the stomach and lower bowel pains.”    Anita


“I now suffer from damage in my leg from the products as well as stomach issues. instead of losing the weight I gained weight.”    Amanda


“Having the worst bloating in my stomach, I’ve also gained weight.”    Sue


“Experiencing chest pains.”    Bertha


“Not only did the product not work, but I gained weight.”    Earle


“The second week I gained 3 lbs.”    Jacquelyn


“I feel discomfort in my lower abdomen.”    Juanita


“I gained 2 lbs in just 6 days of taking the free pills.”    Jerry


“It hurt my stomach so much I had to stop.”    Janet


“All BioSlim does, is give you high blood pressure.”    Hector


Have you been looking for a supplement that is good for you, won’t give you harmful side effects, and is reliable? Then Leptigen may be the product for you! Its four-ingredient formula has been clinically tested and shown to spark metabolism.

Click here here to check it out.

We looked into the BioSlim ingredients in order to give you the information you need.

Licorice Root

Licorice root is derived from the Glycyrrhiza glabra, which is naturally grown in southern Europe and Asia. It is often used as a flavoring agent.

What Is It Supposed To Do?

Licorice has been used in traditional Chinese medicine for many years. It is thought to have an antiviral, anti-inflammatory, hepatoprotective, laxative, and blood pressure effects on the body.

Clinical Research

According to an article written by the University of Maryland Medical Center, “More studies are needed to say if licorice really helps reduce fat. In addition, taking licorice long term has a number of health risk.”

You may want to check out Leptigen, which includes clinically tested ingredients.


Glucomannan is a sugar that is made from the konjac root. It can be found in powder, capsules, and tablets.

What Is It Supposed To Do?

Glucomannan is used to treat constipation, low cholesterol, type 2 diabetes, blood sugar, and excess weight-loss.

Clinical Research

In a study published in the Journal of Obesity, researchers noted that glucomannan may not have the effects many companies claim it has. In the conclusion, it said, “In summary, glucomannan supplements (3.99 g daily) were well tolerated but did not promote weight loss in overweight and moderately obese individuals consuming self-selected diets and maintaining usual physical activity patterns. Other outcomes such as body composition, hunger/fullness, and lipid and glucose parameters also were not significantly altered.”


Atractylodes is a plant that used often in traditional Chinese medicine.

What Is It Supposed To Do?

Atracylodes are used to treat indigestion, bloating, diarrhea, and more. The plant works by chemicals working to improve the function of digestive tract.

Clinical Research

A study published in Evidence-Based Complementary and Alternative Medicine, researchers concluded, “This study indicates that ATR might improve appetite, therefore might partially explain why large-head atractylodes rhizome can improve appetite in the light of TCM theory. What’s more, ATR could down-regulate the serum IL-1 level, and up-regulate serum TNF level. This might partly explains why ATR has the ability to improve appetite, and reverse weight loss.”

Siberian Ginseng

Siberian ginseng is a plant often considered an adaptogen. The root is often used for various medicines.

What Is It Supposed To Do?

Siberian ginseng contains chemicals that effects the brain, immune system, and hormones. It seems to affect the heart, blood vessels, athletic performance, insomnia, and more.

Clinical Research

In a study published in the Journal of the International Society of Sports Nutrition, researchers stated, “The vast majority of well-controlled studies have reported no significant effect of either Panax ginseng, eleutherococcus senticosus Maxim L, Ciwujia, or a standardized ginseng extract on cardiovascular, metabolic, or psychologic responses to either submaximal or maximal exercise performance, or on maximal or supramaximal performance capacity.”

Is There Anything Out There That TRULY Works?

Before you give up on weight-loss, you may want to check out Leptigen, who is offering a Special Trial Offer to all new customers. With clinically tested ingredients and positive customer reviews, this one is worth a try. Click here to try it out.

66 User Reviews About BioSlim

Leave comments below
  • 1

    I ve been taking bioslim for 2 weeks. It did help alot with my appetite however I ve been getting hungry the last 2 days. Should I stop and start again or what?


    Anna (Editor)

    Hi! For detailed product and usage instructions, please refer to the Bioslim official website for more information.


  • 2

    the product doesn’t work it is a scam the advertise the first bottles are free just pay for shipping but what it really is is a sign up for automatic payments and in the fine print somewhere they claim it says its a 14 day trial and after the 14 days you will be charged for the supposedly free bottles and it doesn’t work i took it faithfully for a month and all i got was sick at the stomach and lower bowel pains i was having a regular bowel but i can get that with water and it won’t cost me 50 dollars a month and they won’t reimburse you don’t get this product and it’s only 60% HCA not 90 or 95 liars liars liars


  • 3

    I drink 2 liters of water a day. This product did not help me at all! Now i can’t seem to find a number to cancel my shipment! Not happy!!!


    Candace (Editor)

    Try calling 1-800-246-7546, Pamela. If you can’t get through you can always email them.


  • 4
    amanda heineman

    bioslim is completely false and offer false advertisement with false results.. i now suffer from damage in my leg from the products as well as stomach issues. instead of losing the weight i gained weight.


  • 5

    About the rudest customer service I have ever encountered. George a supervisor refused to tell me what state the company was in. I was cancelling my trial on the 14th day and my acct was already debited. He told me I need to be accountable for my mistakes and condescending to me. I told him I wanted to speak to his supervisor and he told me NO, he was not letting me and he was not going to tell me where they were located. I explained to him I was going to call the Attorney Generals office. He kept being really rude. I mean rude, rude. I am in customer service and I will make sure there is a complaint filed against this guy with the company.


  • 6

    First time using product just ordered it I’m just trying to lose 5 lbs 5lbs of belly fat.


  • 7
    This is fake

    Bioslim is a scam, don’t trust what tmz or Dr. Oz say about it.


    Your Name

    Dr. Oz always said that he doesn’t endorse any brand and if anyone said he is its a lie…


  • 8

    BIGGEST SCAM! They get you by the fine print! Free Trial turns into many charges and the company not cancelling the membership! DO NOT order!!!



    that was the same experience i had tracy a big fat scam lie


  • 9

    checking a few web sites, I would conclude this stuff is “snake oil” as in a total ripoff. I just emailed the dr.oz show to ask about the online complaints all over the web.


  • 10
    Chris Anderson

    I have high blood pressure and have tried other diet pills that really screwed with my blood pressure. How does this work with people with high blood pressure?


    Cameron (Editor)

    This product line has a number of products. Which one are you interested in taking. The Ultra SlimTone Formula has stimulants like Green Tea to aid in metabolism boosting. Moderate levels found in most formulas won’t increase blood pressure but be sure to consult your doctor.


  • 11

    My wife ordered the Bioslim…..it didn’t work at all…but what really made me MAD was that when we returned the bottle they never refunded our 79 dollars. .going to call BBB


  • 12

    this is the biggest scam. They charge your card BEFORE the trial ends. DO NOT USE!!!!!!!!!!!!


  • 13

    I tried cancelling immediately after purchasing the trial. got an indian lady on the phone who didnt speak English. was quickly charged $70 for one and $80 for the other bottle. i’m just going to have my bank issue a new debit card number. BUYER BEWARE!


  • 14

    Don’t be fooled by the “free trial” offer! After 14 days I got a $79.95 charge to my credit card in addition to the $9.95 shipping….supposedly there was fine print somewhere that I agreed to this. Oh, and it doesn’t work!


  • 15



  • 16

    I am halfway through my 1st bottle and am having the worst bloating in my stomach, I’ve also gained weight even though it did make me feel full and I ate as I usually do.


  • 17

    I m on my third bottle of bioxlim and i feel discomfort in my lower abdomen. Its not the first time im using bioxlim , it happened before . I snack alot and pick up weight quickly thats why i use bioxlim



    I m on my third bottle of bioxlim and i feel discomfort in my lower abdomen. Its not the first time im using bioxlim , it happened before . I snack alot and pick up weight quickly thats why i use bioxlim


  • 18

    was trying the free order that was supposed to be 14 days and then cancel within 18 days if not interested to do more. I will cancel today May 11. I gained 2 lbs in just 6 days of taking the free pills. Don’t want anymore.


    Your Name

    good luck with canceling. You might have to go through your credit card company to get them to cease and desist.


  • 19

    I don’t know about bio slim but I bought (2for1) at the vitamin shoppe on line a product called (100%) garcinia Cambodia and it works wonders. It cleanses, keeps you regular and gets rid of the tummy fat. I went from 148 to 119 in 45 days. It’s awesome and so is the vitamin shoppe


    Your Name

    Cambogia not Cambodia Sorry


  • 20

    It’s a SCAM!!! Don’t put yourself though it. You will only end loosing your money. They accuse you of not reading the fine print, well I did, and there was no mention of the charges or autoship, etc…


  • 21

    Ordered a free trial and didn’t see until afterwards it will autoship and charge $70 next month. Someone please help me cancel!!


    Stephen (Editor)

    Hi Cindy, If you would like to contact this company we have listed ways you can reach them in our Q&A section.


  • 22

    I really want to know that is it really working and how it works?


    Cameron (Editor)

    Hi, Lorrain. Depending on the product, the recommended serving is once per day. This is supposed to help the dieter lose more weight.


  • 23

    I’m over weight my bmi is 27
    I take a lot of different meds
    Can I take this product??


    Stephen (Editor)

    Hello, Mary. Your doctor must scrutinize these ingredients to ensure against a conflict with your prescription medications.


  • 24

    Where can I order ? The BioSlim


    Stephen (Editor)

    Contact info located in the Q&A section.


    Your NameCarol

    you can buy this at walmart for $19.99. Just bought it today.


  • 25

    I live in cape town South Africa. Where can I purchase bioslim one a day in cape town. I don’t feel good about ordering online. please let me know at what stores I can purchase it in cape town.


    Your Name

    fazlin, good I am glad you feel that way. The online ordering is a big scam. They suck you in for big money.



    I m on my third bottle of bioxlim and i feel discomfort in my lower abdomen. Its not the first time im using bioxlim , it happened before . I snack alot and pick up weight quickly thats why i use bioxlim


  • 26
    Alma Smith

    I can no longer afford the bioslim, remove my order from your list. I will return all future shipments.


    Cameron (Editor)

    Hi, Alma. You must contact the company directly. We have compiled contact info in our Q&A section.


  • 27
    Virginia LeBlue

    I used the original Bio Slim a long time ago, and immediately was able to shrink my appetite and lose 35 lbs. within a period of 3 months. I was able to keep the weight off for over 10 years. I had some extra and shared it with 2 other people, but neither of them had any success in losing weight. I’m seriously thinking about ordering it again. I need to lose about 35 lbs, and hope it works as well as it did before. I’m a lot older now, and crippled up, so I hope it will help me to get back to a healthy weight again. I know I would feel a lot better and have a lot less pain if I could lose the weight.


  • 28

    is it safe to take bioslim if you have connective tissue disorder, and experiencing chest pains.


    johnny goodlow

    go run and change your diet. no shake or magic pill can trust me i tried and the only thing worked was exercise!


  • 29

    I am really interested in this product, I am trying to lose 50 pounds any suggestions.



    Latarsha, where are you from? Can you give me your email so I can contact you directly? Regards.


  • 30
    steven esch

    i mean no its not tax its paid for shipping


  • 31
    steven esch

    i order last aug28 and i use my credit card and i looked it my money took it already.how can i get assurance that u guys send me my order…bioslim 2 box worth 30$something with tax..u dont hve fone number to call


    Cameron (Editor)

    For customer service call 1-800-246-7546, Steven.


  • 32

    I purchased the same product and received the same package, when I contacted the company they sent me some really degrading and nasty replies. I have also written on some other review sites and have noticed that my posts were removed. This is a SCAM…. BIOSLIMHERB,,,BIO SLIM HERB IS A SCAM. All the positive comments are written by the sellers of this product. BUYER BEWARE!!!!



    This is not a scam, I used it in 1998 when it first came out on the market and it helped me lose 30 pound the first month with just me walking and doing crunches. I than lost 20 more pounds over 2 months. I kept it off for 10 years and have only gain 10 pounds. I kept it off even durning and after pregnancy. THIS PRODUCT REALLY IS AWESOME AND I SWEAR BY IT!



    Yes. All reviews are from Canada. I personally know that the sellers have written the comments. I was one of the buyers that did it. Company is a SCAM…


    Munira Mahomed

    This is not a scam. Ive been taking the bilslim tablettes for 2 months now and with a balanced diet ive managed to lose 5 kilos in one month. It does work and i would encourage anyone to use this products.



    what you had in 98 must not have been the same cause this product does not do what it is advertised as doing it just a scam to auto charge your card every month


  • 33
    Okongwu Nkiruka Vera

    Where can I buy Bioslim product in Lagos Nigeria?


    nmezi onyedikachi

    call abuja distribution center on 234 8030925299 and buy your bio life slim boxes


    Daodu Oluwatosin

    Hi, I reside in Lagos, Nigeria and would like to know how I can get this product and continually agave access to it. Thanks.


  • 34
    Marsha K Becker

    recently inherited a bunch of orange flavored packets that say slim on them and are marked as bioslim products, could you please tell me how to use them? Thanks,


    Cameron (Editor)

    Depending on the powder, it’s one per day. Be sure to inspect the label.


  • 35

    how to take bioslim?


    Cameron (Editor)

    Grace, the recommended serving is once per day


  • 36

    i want to buy the old bio slim how could i get it


    Cameron (Editor)

    It may not be in production anymore. Some product’s formula change over time.


  • 37
    Norma Juarez

    I purchased the bio slim in the powder form. Is it safe to use while breastfeeding?


    Cameron (Editor)

    Please ask your doctor before taking it; wait until he/she gives you the ok.


Have a comment or question about BioSlim?