Updated: 07/19/2016 - Site operated by Leptigen

Carbolin 19 Review - Does This Fat Blaster Really Work? Are lack of results and ineffective ingredients deal breakers?

By Summer Banks | Published: 07/07/2016
Carbolin 19 Review

Bottom Line: Why is it that so few diet products are backed by science? Let’s find out if Carbolin 19 is one of the good ones. Here at DietSpotlight, we conducted an in-depth review, taking a close look at the ingredients, side effects, customer-service quality and scientific research. We additionally read all sorts of user comments and dieter experiences from all over the web. At last, we summarized and compressed this information to give you the facts you need.

EDITOR'S TIP: Click here to combine Carbolin 19 with a proven fat burner such as Leptigen for better results.

What is Carbolin 19?

To begin, Carbolin 19 is marketed as an “anabolic/lipolytic agent,” and it’s made by Biotest, LLC. This supplement is claimed to decrease fat mass, increase muscular pump, improve strength gains and help with muscle building. In order to use this product, you need to take 1-2 capsules in the morning and then again six hours later. The core ingredient is Forskolin or Coleus Forskolii. It has been shown to widen blood vessels and encourage a more powerful heartbeat. This can help lower blood pressure and even treat asthma.

It is unclear when Carbolin 19 was first released, but we did find this supplement for sale on websites like Amazon. There are some positive comments posted online and science has tested the active ingredient, but read on…

Lack of Real Weight-Loss Results – “A Concern?”

The first concern we had with Carbolin 19 ingredients is the lack of real weight-loss results. According to our Research Editor, “After reading a number of customer reviews, it’s clear that this supplement is not producing the fat loss results it claims to – at least for some people.”

One user commented, “So no weight-loss results with this product!”

“Didn’t notice this doing anything even with a strict diet and training protocol,” said another customer.

Ineffective Ingredients – “Something Else to Think About”

The key ingredient found in Carbolin 19 is Forskolin, which according to WebMD, has not been proven to help with weight-loss or muscle building. One user mentioned, “Doesn’t actually help you lose weight or bulk up.”

Another person stated, “This product does absolutely nothing for me! What’s the point?”

Our research has shown if there is some particular facet of a diet supplement or workout program that is quite problematic or concerning (lack of real weight-loss results, ineffective ingredients, poor BBB rating) the probability of long-term results is low. This means if Carbolin 19 does not work as expected for a high number of people, this could be a major issue.

Is There Any Real Science?

There is a study mentioned in the product description for Carbolin 19, but there’s no information on where it was completed or where it is published. We do know that Forskolin can support weight-loss and testosterone levels, but this research is independent of this supplement. Unfortunately, we at DietSpotlight need to see some actual research.

The Bottom Line – Does Carbolin 19 Work?

So, should you run out and buy Carbolin 19? Well, first of all, we like that this supplement is readily available on dealer websites such as Amazon, and we did find some positive comments about it online. Then again, we have some reservations because it does not appear to be backed by any documented science that shows it works as claimed 100%. Also, we’re concerned about the negative user reviews we found posted on the web.

If you’d like to drop more weight, then we encourage you to choose a product that contains clinically tested ingredients, comes with excellent customer service and is supported by all sorts of encouraging user reviews.

Among the best products we’ve seen in 2016 is one called Leptigen. Its formula is a proprietary blend of four unique ingredients, which have been shown in documented clinical tests to help speed up fat loss and boost metabolism. We can’t find many complaints of adverse effects and customer comments posted online indicate people are seeing significant results.

The makers of Leptigen are so confident in their product they’re offering a Special Trial Offer, which is very encouraging.

For customers in the UK, Canada, or other countries, it’s important that Leptigen offers fast, reliable worldwide shipping. Choose your country on the order page and that’s it.

Get Your Sample Today »
About the Author: Summer Banks

Summer 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 Carbolin 19 Compare?

Previous Carbolin 19 Review (Updated January 1, 1970):

What You Should Know

Click Here To See Our Highest Rated Review

Carbolin-19 is a bodybuilding supplement produced by the BioTest company. It claims to be an anabolic bridge, working just as well as the illegal steroid Anavar. Though the primary focus is the formation of lean muscle mass, it also is thought to help with fat loss. This review will take a closer look at the product to determine if there is any value to potential consumers.

List of Ingredients

Carbolin-19 contains one ingredient that we know of: colforsin 1,9-ethylcarbonate. We were not able to locate a supplement facts label to confirm this is the only ingredient.

Product Features

Colforsin 1,9-ethylcarbonate comes from Forskolin. Forskolin is the well known compound in a medicinal herb known as Coleus Forskolin. The plant has been used to treat several conditions including asthma, insomnia, and heart disease. It is only in recent years the plant has come to light with weight loss benefits. ForSlean is the patented name for the standardized Coleus Forskolin extract many weight loss supplements use. It claims to not only be a powerful fat burner, but a muscle builder, as well. There is research to support it, but the Biotest company seems to swing it in their favor, leaving out the negative information. The study supports ForSlean, which is not the same as the compound in this product, as a chemical change has been made to the Forskolin in this product.

See Our Featured


  • This supplement is available from a wide variety of merchants online.
  • This product comes with a money back guarantee.


  • Though this is a fat burner, it also builds muscle and is therefore targeted more to bodybuilders than casual dieters who just want to lose a few pounds.
  • Without a full ingredients list disclosed, we cannot tell if there are other ingredients in the formula, or how much of the active ingredient there is.
  • The clinical evidence the company cites is for a different chemical compound using Forskolin, and therefore cannot be accurate.
  • There are not free trials of this product.


While this product certainly looks good on the surface, especially for those who are more about building muscle and toning the body rather than dropping fat, we do not recommend it. Though technically a proven fat burner, the company has misleading research and product claims, more than likely produced to boost sales rather than provide honesty to customers. Consume feedback shows a mixed bag of results on this one, so we advise those who do try this product to proceed with caution. We encourage you to continue your research until you find a product that contains clinical proven amounts of clinically proven ingredients and use it with a balanced diet and regular exercise program for the best weight loss results.

Carbolin 19 Questions & Answers:

We read hundreds of customer reviews about Carbolin 19 and then wrote this FAQ.

What are the side effects of Carbolin 19?

Carbolin 19 side effects may include increased heart rate.

What are the ingredients in Carbolin 19?

The only Carbolin 19 ingredient is bio-enhanced forskolin.

Does Carbolin 19 work?

Although the website for Carbolin 19 offers lots of claims for weight-loss, the information seems a bit confusing for the average consumer, making it seem questionable. Additionally, many customers have complained of a lack of results while using this product.

If you are looking for a product with clinically tested ingredients, you should go ahead and check out Leptigen.

How much does Carbolin 19 cost?

One bottle of Carbolin 19 costs $29.95.

How should I take Carbolin 19?

Instructions for the Carbolin 19 website suggest users take one or two pills in the morning, then again around six hours later. It is highly recommended that you do not exceed four pills in a 24-hour period.

Can I take Carbolin 19 if I have a health condition?

Before taking any weight-loss supplement, including Carbolin 19, consult your physician, especially if you are nursing, pregnant, suffering from any health condition, or less than 18 years old.

What do users like about Carbolin 19?

Carbolin 19 users enjoy the relatively inexpensive price and the large amount of information provided on their website about the product.

What do users NOT like about Carbolin 19?

Customers of Carbolin 19 do not like the lack of weight-loss results.

How do I contact the Carbolin 19 customer service department?

You can either contact the Carbolin 19 customer service department by e-mailing them at service@biotest.net or by calling them at 1-800-525-1940.

How many capsules are in a bottle of Carbolin 19?

60 capsules are included in a bottle of Carbolin 19.

Who are the creators of Carbolin 19?

The distributor of Carbolin 19 is Biotest LLC.

Does Carbolin 19 come with a guarantee?

Carbolin 19 comes with a 100% money back guarantee.

Do you know of any special deals or discounts on Carbolin 19?

The makers of Carbolin 19 are not offering any special deals or discounts at this time. However, one supplement that customers love is Leptigen, which is offering a Special Trial Offer to all of its customers. Click here to learn more.

One User Review About Carbolin 19

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  • 1

    is this legal? I wnt to make sure is not in WADA prohibit list


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