Shredabull Untamed

Updated May 9, 2019.
Published Jan 11, 2019.

There really isn’t anything positive to say about Shredabull Untamed. The ingredients are dangerous, untested, and one of them a bit too closely resembles the banned substance DMAA. Anything crammed full of as many stimulants and under-researched additives as this will almost certainly result in some dangerous side effects. There’s no money-back guarantee either, although that seems like a minor point in the grand scheme of things here. If you don’t fancy toying with your health, you should really avoid this product.


  • None


  • No money-back guarantee
  • Incredibly long list of potential side effects
  • Numerous ingredients are completely unresearched in humans
Shredabull Untamed
Stimulants are one of the most contentious sub-categories of weight loss supplement; there are lots that do indeed aid weight loss and boost the metabolism, but some of them can cause incredibly dangerous side effects, including cardiac arrest, coma, even death!

So, are the numerous stimulants found in Shredabull Untamed both safe and effective? Read on below for our in-depth look.

Shredabull Untamed Overview

What you need to know about Shredabull Untamed

Shredabull Untamed is an incredibly stimulant heavy supplement designed for an intense metabolism boost and significant fat loss. Unfortunately, it seems that one of the active ingredients, 2-Aminoisoheptane, is highly suspect, could cause a lot of serious side effects, and has never been tested for safety in humans.

There are a lot of fans of this product, but its exceptionally high stimulant content and the side effects that they can cause make it an incredibly risky choice in our eyes.

The product is actually a reformulation of Shredabull; the original formula of Shredabull is still available for purchase on eBay.

What are the side effects of Shredabull Untamed?

Looking at customer reviews, it seems that side effects are common. Increased sweating appears to be the most common. One reviewer was unable to continue taking the product as she became ill shortly after taking one capsule; she reported shaking and vomiting, and feeling ill the next day.

There is an incredibly long list of side effects that can be caused by the ingredients found in this supplement. There are several ingredients that have not been tested in human trials for safety, one of which (2-Aminoisoheptane) appears to be closely related to the banned stimulant DMAA. The side effects caused by this supplement could be extreme.

How much does Shredabull Untamed cost?

Shredabull Untamed can be purchased from the official Project AD website, where a single bottle costs $48.99. Delivery charges may also apply. Each bottle contains 50 capsules.

The supplement is also sold by Cardiff Sports Nutrition, a third party online distributor based in the UK. Each bottle costs £39.99, with free UK delivery.

WATCHDOG TIP: Consider using the consumer #1 rated weight loss product – CLICK HERE

Shredabull Untamed Key Features

Shredabull Untamed is a stimulant-based weight loss supplement that promises to “incinerate body fat”, as well as curb cravings and supercharge energy levels “to make dieting a breeze”.

Shredabull Untamed Key Points

  • Manufactured by Anabolic Designs
  • 50 capsules per bottle
  • Not suitable for vegetarians – contains bovine thyroid

Shredabull Untamed is manufactured by Anabolic Designs, who are also known as Project AD. They are based in Knoxville, Tennessee in the USA. They can be contacted using the information provided on their official website, or using their social media pages, which appear to be quite active.

How to Take Shredabull Untamed

Directions for use are as follows:

  • As a dietary supplement, for best results, take one serving (1 capsule) daily. Do not exceed 2 capsules in any 24 hour period under any circumstances. Never combine with other stimulant products.

Shredabull Untamed Concerns:

  • No money-back guarantee
  • Incredibly long list of potential side effects
  • Numerous ingredients are completely unresearched in humans

What does Shredabull Untamed claim to do?

The manufacturers of Shredabull Untamed describe the supplement as an appetite suppressant and metabolism-boosting fat burner. They also state that it will “supercharge” energy levels.

Does Shredabull Untamed work?

There are several ingredients in this supplement that are incredibly under-researched; Higenamine and 2-Aminoisoheptane have never been studied in humans, but they both appear to act as stimulants that could theoretically aid weight loss. Caffeine, yohimbe, and cayenne could also stimulate weight loss, by boosting the body’s metabolic rate and stimulating thermogenesis (heat creation).

Bovine thyroid may contain thyroid hormones, which could increase the body’s metabolic rate, but can also cause hyperthyroidism or mask an existing thyroid issue.

Whether it actually works or not, Shredabull Untamed does not seem to be a safe choice for promoting weight loss.

phentaslim bottle
The most popular consumer choice in 2021 is Phentaslim.

With a combination of proven ingredients, superb customer service and a 60-day money-back guarantee, Phentaslim is making big waves in the diet world.

Find out why thousands of people are choosing Phentaslim to achieve their weight loss goals, and why it's also the editor's top selection.

Read the Watchdog Phentaslim review here.

Shredabull Untamed Ingredients

The ingredients found in Shredabull Untamed are detailed below. No individual ingredient quantities are provided, as the product contains several proprietary formulas.

  • Niacin 10mg (50% RDA)
  • Vitamin B6 5mg (250% RDA)
  • Calcium (as Carbonate) 16mg (2% RDA)

Neurostim Blend 495mg

  • Caffeine Anhydrous: Numerous studies have shown that caffeine boosts energy levels and alertness, as well as mildly boosting the metabolism (although the weight loss effects shown in studies are small, and some studies are inconclusive). The extra energy provided by caffeine could help to improve athletic performance. Source
  • 2-Aminoisoheptane: Described by the manufacturers as DMHA. This chemical is an altered form of DMAA, a banned and dangerous stimulant. DMHA appears to be slightly weaker than DMAA, but appears to perform roughly the same functions. No human trials have ever been conducted on DMHA to see how effective, safe or toxic it is. Source
  • N-Acetyl-L-Tyrosine

Incinerate Thermo Complex 135mg

  • White Willow Bark Extract: Willow bark contains salicin, which acts a painkiller, and is thought to be as effective as aspirin. Source
  • Higenamine Hydrochloride: This chemical compound can be extracted from various plants. It has only been tested in vitro and in animals, so its effects in humans are totally unknown. However, these non-human studies have indicated that it may aid athletic performance as a stimulant. Source
  • Cayenne Extract: Capsaicin, found in Cayenne pepper, is thought to play a role in weight loss. Some studies suggest it could suppress the appetite mildly, whilst others suggest that the heat causes a thermogenic reaction in the body, burning more calories for a period of time. However, there are also studies that show cayenne has little or no effect upon weight loss attempts. Source
  • Gamma Butyrobetaine Ethyl Ester Hydrochloride: Gamma-Butyrobetaine (GBB) is a precursor to carnitine production, and so supplementing it could theoretically provide similar benefits to directly supplementing carnitine. Source
  • Yohimbe Hydrochloride: Some studies have noticed increased blood concentrations of free fatty acids in participants who use yohimbine extract, suggesting increased rates of lipolysis. One small study found that consumers of yohimbe had a decreased amount of body fat after 21 days of supplementation. Source

Thyrocharge Complex 100mg

  • Bovine Thyroid: Bovine Thyroid is desiccated thyroid taken from cows; it is not standardised for any hormones, but is likely to contain an unknown amount of T3 and T4, the two hormones produced in the thyroid. This could increase the body’s metabolic rate, but the thyroid regulates a lot of other systems in the body, so it could also cause an increase in resting heart rate, which can be dangerous. Supplementing animal thyroid could also cause hyperthyroidism, a dangerous condition that has numerous side effects. Source
  • Guggul Lipid PE Extract: Guggul has numerous benefits, including lowering cholesterol levels, but studies show that it does not aid weight loss. It is advertised as a thyroid booster, but the amounts typically found in supplements are usually insufficient to affect thyroid activity. Source
  • Bioperine Black Pepper Extract 5mg: This patented Black pepper extract is used for increasing the bioavailability of nutritional compounds. It may also increase the absorption of various drugs, which may lead to potential side effects. Source
  • Other Ingredients: Inulin (from chicory – some preliminary studies have shown that fructooligosaccharides (or FOS, a carbohydrate found within inulin) aids some weight loss by increasing the perception of fullness following consumption. Source

Shredabull Untamed Side Effects

There are numerous ingredients found in Shredabull Untamed that could cause a range of side effects.

One key ingredient, DMHA, is chemically very similar to a banned substance called DMAA. Although it remains unclear how safe DMHA is, due to a shocking lack of research on it, its nearly identical sister supplement DMAA has been associated with raised blood pressure and heart rates, and has been linked with causing strokes, heart attacks, and death, even in previously healthy people. Other side effects may include shortness of breath and tightening in the chest, chest pain, seizures, neurological problems and psychiatric problems. We advise caution when taking untested stimulants like DMHA; consult a doctor immediately if any of the above side effects occur.

This product also contains what appears to be a notable dosage of caffeine. High doses of caffeine can cause headaches, jitteriness, insomnia, an increased heart rate, heart palpitations, increased urination, dehydration, and increased blood pressure.

Yohimbe can also cause a wide range of side effects, including stomach upset, excitation, tremor, sleep problems, anxiety or agitation, high blood pressure, a racing heartbeat, dizziness, stomach problems, drooling, sinus pain, irritability, headache, frequent urination, bloating, rash, nausea, and vomiting. High doses can cause more severe effects.

Supplementing bovine thyroid could affect thyroid function. Because this supplement is unregulated and has not been standardised, it is impossible to tell what hormones it actually provides and at what levels. We found a case of a woman who had been taking desiccated thyroid for three months who had resting tachycardia (a fast resting heart rate), amenorrhea (an absence of periods), and weight loss, and was diagnosed with hyperthyroidism, caused by the thyroid supplement.

Guggul supplementation can cause side effects such as stomach upset, headaches, nausea, vomiting, loose stools, diarrhoea, and hiccups. Guggul can also cause allergic reactions such as rash and itching.

Cayenne can cause heartburn, stomach aches, indigestion, increased sweating, and a runny nose.

Because Higenamine has been untested in humans, potential side effects are largely unknown, and so it is considered potentially unsafe for use. One of the plants that it could be extracted from, Aconite, has been shown to cause serious heart-related side effects including arrhythmias and even death. It is unclear what compounds in this plant cause these side effects, and so it is possible that Higenamine does play a role in these side effects.

Bioperine increases the bioavailability of other compounds, including some medications; this could increase the chances of side effects from the other ingredients found in the product. Consumers who are taking medication are also more at risk of accidentally overdosing because of the higher absorption rate associated with Bioperine, and so should consult with their doctor before taking this product.


Not suitable for pregnant or breastfeeding women. Not suitable for anyone under the age of 18. Discontinue use if you experience any adverse side effects. Never exceed the recommended dosage of 2 capsules daily. Contains stimulants which may cause insomnia if used within 7 hours of your bed time. Not suitable for anyone who has an overactive thyroid, an underactive thyroid, Grave’s disease, or who has had their thyroid removed. Yohimbe extract can cause extreme anxiety in individuals predisposed to anxiety. Yohimbe extract may trigger manic psychosis or suicidal episodes in people with bipolar disorder. Yohimbe extract can interact with a large amount of neurological medications and should not be used in conjunction with these medications without consultation with a doctor. Not suitable for anyone who is sensitive to stimulant ingredients, or who has any cardiac related health issues, including but not limited to high blood pressure. If you are taking medication, including but not limited to MAOI inhibitors, antidepressants, aspirin, nonsteroidal anti-inflammatory drug or products, or other stimulants. Consult your physician prior to use if you have a medical condition, including but not limited to, heart, liver kidney or thyroid disease, psychiatric or epileptic disorders, difficulty urinating, diabetes, high blood pressure, cardiac arrhythmia, recurrent headache or glaucoma.

Shredabull Untamed Customer Feedback

There are numerous customer reviews for Shredabull Untamed online. Both negative and positive reviews agree that the product is incredibly strong; some people experienced unpleasant side effects and were unable to continue taking the product. Even positive reviews mention side effects like increased sweating and an increased heart rate.

Most awful tablets I have ever taken. I only took one and it was so strong I couldn’t stop shaking and being sick, it took hours for it to wear off and I still didn’t feel right the next day.

Was not expecting this to blow my socks off the way it did! One pill and I had clean energy for around 8 hours! Only problem was it made me sweat so bad!

Shredabull Untamed Money-Back Guarantee

The manufacturers of Shredabull Untamed do not offer a money-back guarantee. They provide a returns policy that covers unopened products only; the seal must still be in place to be considered for a refund. Full terms and conditions can be found on the Project AD website.

Where To Buy Shredabull Untamed

Shredabull Untamed can be purchased from the official Project AD website, where a single bottle costs $48.99. Delivery charges may also apply.

The supplement is also sold by Cardiff Sports Nutrition, a third party online distributer based in the UK. Each bottle costs £39.99, with free UK delivery.

Watchdog Verdict

We are not impressed by Shredabull Untamed at all. The list of potential side effects that could be caused by this supplement is extensive and some of them are incredibly serious. There are numerous ingredients that have never been tested in humans, for either effectiveness or safety. Individual ingredient quantities are not provided, which are vital for determining the strength and safety of a supplement. One of the ingredients, 2-aminoisoheptane, is described as DMHA, but some other supplements listing 2-aminoisoheptane on their ingredients lists have been found to actually contain the banned and dangerous stimulant DMAA. DMHA is also essentially an unknown quantity, being similar to, but milder than, DMAA, and completely untested; we believe that it could be banned from use in supplements in time.

Shredabull Untamed is not covered by a money-back guarantee either.

So overall, we would not recommend taking Shredabull Untamed.

How does Shredabull Untamed compare to Phentaslim?

Criteria Shredabull Untamed Comparison Phentaslim comparison
Clinically Proven Ingredients
Side Effect Free
Positive Customer Reviews
24/7 Support
Money-back Guarantee

Disclaimer: Our reviews and investigations are based on extensive research from the information publicly available to us and consumers at the time of first publishing the post. Information is based on our personal opinion and whilst we endeavour to ensure information is up-to-date, manufacturers do from time to time change their products and future research may disagree with our findings. If you feel any of the information is inaccurate, please contact us and we will review the information provided.

Have Your Say

Get the conversation started by leaving your comments using the form above.

Add your comment

We'd love to get your opinion. Please keep it clean and stay on topic, no spamming. Comments are moderated before being made live. Your email address will not be published.
We cannot give advice about medical conditions or prescription drugs. Please direct specific medical questions to your doctor.

This site uses Akismet to reduce spam. Learn how your comment data is processed.