July 31

PhenQ Vs Instant Knockout | Side-by-Side Comparison


You’ll find PhenQ and Instant Knockout on multiple fat burner recommendations lists online. Both of these products claim to be the premier weight loss supplement on the market. 

The thing is, while PhenQ and Instant Knockout fall under the same umbrella of “fat burners,” they’re intended for completely different users — at least judging by the way they promote themselves. So, which of these is the right option for you?

Let’s analyze their benefits and composition to find out.

Distinct features

The key defining features of these fat-burning supplements are:


  • Boosts metabolism to burn fat quickly;
  • Reduces hunger and cravings for snacks;
  • Aims to balance mood and energy levels.

Instant Knockout

  • Helps lose belly fat quickly;
  • Can help accelerate muscle growth;
  • Boosts energy levels to allow longer and more intense workouts.

What is PhenQ?

PhenQ positions itself as the default weight-reducing supplement for almost everyone. According to its official website, PhenQ is suitable for men and women of all ages. This all-encompassing approach is also present in its overarching goal: improving your health as a whole.

Proposed benefits

While the goal of PhenQ might be a bit too ambitious; its proposed benefits make it look achievable. 

For instance, it promises to remove excess fat from your system and prevent its accumulation down the road. If it works as advertised, this alone is enough to raise your quality of life significantly.

Not only that, but PhenQ also claims to increase your day-to-day energy levels and improve your mood by removing unnecessary mental stress.


PhenQ contains only five active ingredients, which it claims are 100% natural and safe for everyone. These include metabolism enhancers like Capsimax powder & L-Carnitine Fumarate and hunger suppressants such as Chromium Picolinate & Nopal cactus. Lastly, its formula also includes Caffeine to increase energy levels and reduce fatigue.

What is Instant Knockout?

For some, the term “get in shape” means to lose excess fat, while others associate it with bulking up and getting shredded. Instant Knockout is intended for the men and women in the latter group that want well-toned bodies with sturdy muscles.

How it works

According to its official website, Instant Knockout combines the benefits of several natural ingredients to help you achieve your ideal body type. 

Its primary fat-burning components are Green Tea extract and Cayenne Pepper, which boost fat oxidation and increase energy expenditure. Instant Knockout claims that adding these to your diet will increase the effectiveness of your workout sessions as well. 

Speaking of workouts, its formula also contains a high dose of Caffeine, Vitamin B12, and Black Pepper extract. These ingredients reportedly boost your energy levels and reduce fatigue — allowing you to gain muscle faster by increasing the duration and intensity of your workouts.

Shared ingredients

PhenQ and Instant knockout share only one active ingredient with each other, a fact that further solidifies their differences. That common ingredient is:


Caffeine is one of the most influential ingredients in these supplements, and here’s why. 

  • Studies show that regular Caffeine intake boosts thermogenesis and allows you to shed extra weight way faster than you would otherwise;
  • It can increase your energy output by promoting a more favorable intracellular ionic environment in active muscles;
  • Even a small Caffeine intake of 3 mg per kg of body weight can enhance your resistance training exercises by increasing your strength and stamina;
  • It can also enhance your endurance and stamina in aerobic exercises like cycling and running. Some athletes also report better performance and faster speeds with regular Caffeine intake.

PhenQ unique ingredients

PhenQ features four unique ingredients, including:

Capsimax powder

Studies show that regular Capsimax powder intake can lower fat concentration by 6-7% after 12 weeks of use. An earlier 2012 large scape study by Whiting et al. reached a similar conclusion. This study involved 563 participants, most of whom showed lower fat levels after including Capsaicinoids in their daily diets.

Though it is important to note that how Capsimax lowers fat content is still under investigation and needs more research.

Chromium Picolinate

Chromium Picolinate is a hunger suppressant that reduces appetite and makes you feel fuller with lesser food. It also reduces cravings for unhealthy foods with high sugar and carbohydrate content. 

Nopal cactus

Nopal cactus serves two main purposes. First, it binds to dietary fat and helps remove it from your system through digestion. This prevents excess fat accumulation from oily and fat-rich foods. Secondly, it also acts as a subtle but effective hunger suppressant — helping you feel full with less food.

L-Carnitine Fumarate

L-Carnitine Fumarate increases your energy expenditure which, in turn, prompts your body to compensate by converting excess fat into energy. Not only does this process remove extra fat from your system, but it also produces energy that combats exhaustion and makes you feel more active. 

Instant Knockout unique ingredients list

Instant Knockout features a list of 9 ingredients, 8 of which are unique to this supplement. The most notable of these include:

Vitamin B12

Vitamin B12 acts as a potent metabolism regulator. Regular intake of this nutrient can increase the energy yield of food metabolism — making you feel more active. More importantly, studies show that Vitamin B12 supplementation can drastically slow down fat accumulation and weight gain — especially in middle-aged folks.

Green Tea extract

Green tea is one of the most recommended weight loss drinks online, and for good reasons. It is loaded with catechins, a bioactive polyphenol that boosts fat oxidation by increasing your body’s energy expenditure. Green tea has also been observed to increase your body temperature through high thermogenesis, which makes your workout sessions more productive.

Black Pepper extract

Including Black Pepper in your daily diet can boost energy production through food metabolism and halt the accumulation of fat cells. It does this by activating two key cell receptors known as TRPA1 and TRPV1. 

The Pirin in its formula can also increase the bioavailability and effectiveness of other ingredients by 30% or more. 


PhenQ recommends you to take no more than two tablets per day. The best time for taking these tablets is the first before breakfast and the second before you go to sleep.

Instant Knockout, on the other hand, requires you to take 4 spaced-out capsules throughout the day. The recommended time for each capsule is 8am, 11am, 2pm, and 5pm. You can add more time between two capsules but keeping it evenly spread out will show the best results.

Side effects

Both PhenQ and Instant Knockout report zero side effects from their customers. According to their manufacturers, all of the ingredients in these supplements are natural and should be completely safe for most adults.

Even if this is true, you should stick to the recommended dosage. Taking too many supplements in a day can cause nausea, rapid heart rate, and muscle tension due to their high Caffeine content. Also, consult your doctor before considering these fat burners if you have a major illness or if you are pregnant. 

Prices and offers

If you want to get rid of excess fat with PhenQ or get in your ideal shape with Instant Knockout, here’s how much you would have to spend:


Instant Knockout

  • PhenQ’s standard 1-month option costs  $69.99 and includes 60 capsules;
  • Its popular 2-month deal is priced at  $139.99 and comes with 1-month supply for free;
  • The bulk option costs $209.99 for a 3-month supply and includes 2 free bottles.
  • 1-month supply of Instant Knockout Cut is priced at $65 for 120 capsules;
  • Its 2-month deal will cost you $130 for 2 bottles;
  • The ultimate budget option has a set price of $195 for a 3-month supply with 1 bottle for free.

Pros and Cons


  • Suitable for men and women of all ages;
  • Claims to be 100% vegan and vegetarian friendly;
  • Zero reported side effects;
  • Only five active ingredients with clear benefits backed by science.


  • Only sold through the official website;
  • Not suitable for men under 18.

Instant Knockout


  • Aims to help you lose fat and build muscle;
  • Works well with pre-workout protein powders;
  • Claims to be fully vegan;
  • Raises body temperature and makes you feel more active.


  • Requires you to take four capsules a day;
  • Its Caffeine content may be too high for some people.


From what we’ve seen from their composition and proposed benefits, both PhenQ and Instant Knockout are solid considerations but for different people. 

Think of it this way, if you’re past your 30s and just want to lose excess weight to live a healthier life, PhenQ is the better option for you. It also promises benefits like boosted energy levels and enhanced mood that can improve your life as a whole.

On the contrary, Instant Knockout is for men and women determined to get in the best shape possible. Its formula is designed to cut down excess fat and promote muscle growth quickly. Its ingredients like Caffeine, Vitamin B12, and Black Pepper extract also increase your energy levels — allowing you to workout harder than ever.


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