Updated: 01/18/2018

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.

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

What is BioSlim?

Firstly, BioSlim is a weight-loss system. The program consists of Ultra Slim Tone Formula, Ultra Vita/Min Plus, BioSlim Accelerator, Doctor’s Reference, BioSLim VideoGuide, Active Planner
Cook Book and PocketBox. What are the ingredients in BioSlim? Some essential ingredients include:

  • BioSlim Pyruvate Complex
  • Green Tea
  • Quercetin
  • Chromium Polynicotinate
  • Siberian Ginseng
  • B-Vitamins

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. We do like that the company has been in operation for more than 25 years and some comments are positive, but read on…

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Looking at the Customer Service Quality of BioSlim

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.

BioSlim Customer Testimonials

BioSlim Weight-Loss Claims

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 to Support BioSlim?”

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 Burn HD Weight-Loss Kit review »BioSlim Ingredients

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 this year is one called Burn HD. 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 Burn HD are confident in the supplement, so they’re offering a 2-Week Sample, a good choice.

Learn More About Burn HD »
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What are the side effects of BioSlim?

BioSlim potential 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.

How do I know if BioSlim is right for me?

Choosing the right product is the #1 question asked by DietSpotlight readers. We recommend trying any product before buying it and know that finding a product with a sample offer is near impossible - so we created our own product, Burn HD, with scientifically backed ingredients.

Click here to get your sample of our powerful fat burner today.

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.

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.

Who makes BioSlim?

Medicus International makes BioSlim.

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.

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

BioSlim Ingredients

BioSlim claims to help burn fat, but it's ingredients are nothing out of the ordinary.

BioSlim Ingredients and Supplement Facts

Serving Size: 3 Tablets
Serving Per Container: 12
Amount per Serving% DV
Green Tea*
Coenzyme Q10*
Chromium Polynicotinate*
Oriental Ginseng Root*
Licorice Root*
Dong Quai*

Other Ingredients: None

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 Dietspotlight Burn, 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 Dietspotlight Burn, 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.

  • References
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Previous BioSlim Review (Updated April 17, 2014):

What You Should Know about BioSlim

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. 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.

List of BioSlim Ingredients

Not available from the company.

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 for $89.95. There doesn't appear to be any real clinical evidence presented on the website.

Advantages BioSlim

  • There is a 6-week money-back guarantee offered with the Bioslim weight loss system.

Disadvantages of BioSlim

  • There doesn't appear to be any real clinical data provided on the product to support the overall effectiveness of Bioslim.
  • Some ingredients found in Bioslim supplements may not be suitable for some individuals.
  • 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.

Summer Banks Dietspotlight Author
About the Author:

Summer Banks, Director of Content at Dietspotlight, has researched over 5000 weight-loss programs, pills, shakes and diet plans. Previously, she managed 15 supplement brands, worked with doctors specializing in weight loss and completed coursework in nutrition at Stanford University. full bio.

42 BioSlim Reviews

  •  Is it a scam?

    Hi iv been told that they charge you 79dollars after this free trial and it was y writen????i have purchased it and am waiting to reiceve can you make sure this doesnt happen please!

    • Richard (Editor)

      Hi Niamh. We aren’t affiliated with BioSlim.

  • Can use it while breastfeeding.
    Norma Juarez

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

    • Cameron (Editor)

      Hi Norma! Because of possible interactions with breast feeding, please make sure to consult with your physician before taking this product.

  • Really working and how it workd

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

    • Cameron (Editor)

      Hi, Lorrain. BioSlim are a system of weight loss kits and individuals supplements. When you follow the directions, supposedly you’ll lose weight. Another weight loss supplement you may want to consider is one called Dietspotlight Burn.

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

    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!

    • Victoria (Editor)

      Hi Bertha! While the company does provide specific warnings relating to use, it may be best to contact your physician.

  • how to buy bioslim?

    how to take bioslim?

    • Cameron (Editor)

      Hi Grace! The recommended serving is once per day.

  • I can purchase it in cape town.

    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.

    • Juanita

      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

    • Victoria (Editor)

      Hi! You can order the supplements online. BioSlim products aren’t sold in stores.

  • Any suggestion to loose weight?

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

    • Victoria (Editor)

      Hello Latarsha. All users are different and can experience different weight-loss results, but exercise in conjunction with a healthy diet and supplements have shown to help with weight-loss. Another supplement you may want to consider using is Dietspotlight Burn.

  • Using it first time, just ordered !

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

  • Your Name

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

  • 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?

    • Victoria (Editor)

      Hi Chris! Some ingredients may cause increases in heart rate and blood pressure. It may be best to contact your doctor and discuss the ingredient list with them.

  • I'm over weight

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

    • Stephen (Editor)

      Hello, Mary. Because of possible interactions with medications, please make sure to consult with your physician before taking this product.

  • BioSlim

    Where can I order ? The BioSlim

    • Stephen (Editor)

      Hello! We’re not affiliate with the company, so you can’t order from here.

    • Your NameCarol

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

  • I want to buy how could i get it

    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.

    • Becka

      Yes the old bio slim worked, but if they no longer sell that exactly.

  • 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.

  • Jay

    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?

  • alina

    I ve used bio slim one day and in less than three months I weight 80kg but with the help of bio slim one day I weighed 66kg please if its still available in around jhb tell me where to find it

  •  Did not worked at all !
    Pamela (Verified User)

    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.

  • worst bloating in my stomach
    Sue (Verified User)

    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.

  •  Felt discomfort when using this
    Juanita (Verified User)

    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

    • Juanita

      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

  • Your Name

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

  • Someone please help

    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.

  •  Easily loose my weight
    Virginia LeBlue (Verified User)

    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.

  • Health question
    Moana manini

    Hi I have a liver problem is it still safe to use this product?