PhenQ vs Instant Knockout 2024 | Which One Is Better?

Choosing the right fat burner to assist your weight loss journey can be challenging, particularly when deciding between two leading options; PhenQ and Instant Knockout.

It’ll be tough for us to declare one of these as “better” than the other in every regard. But, we can determine the ideal option for you by comparing their proposed benefits, composition, price, and more. Let’s get started.

Distinct features

The key defining features of PhenQ and Instant Knockout are:

Overall Rating: 4.9/5

  • Claims to provide a 5X improvement in your workout efforts;
  • Assists weight loss goals from multiple angles;
  • Improves mood and motivation.

Instant Knockout

Overall Rating: 4.7/5

  • Promises to make the cutting phase easier;
  • Cuts down belly fat and promotes muscle growth;
  • Reduces hunger and cravings for unhealthy, untimely snacks.

My Video Breakdown of PhenQ vs Instant Knockout

What is PhenQ?

PhenQ is a comprehensive fat burner and natural weight management system. According to its website, PhenQ “targets five key areas of metabolic health to help shed excess fat.” In other words, it employs five different methods to help you lose weight faster. These methods are:

  • Faster fat metabolism: PhenQ utilizes Caffeine to boost thermogenesis(conversion of calories into energy) which, in turn, signals your body to burn fat faster.
  • Reduced fat accumulation: It includes Nopal cactus; a fiber that attaches itself to dietary fats and prevents them from getting absorbed by your body — slowing down fat accumulation.
  • Crushed hunger: Chromium Picolinate in its formula makes you feel fuller than you actually are. This allows you to function with less food, without feeling hungry.
  • Boosted energy: The Caffeine and α-Lacys Reset in PhenQ increase your energy output so you can spend more time working out and stay more active in general.
  • Balanced mood: The L-Carnitine Fumarate in this supplement improves your cognitive performance. It also improves your mood and makes you feel more motivated to work toward your weight loss goals.


  • Only six active ingredients with clear scientifically-proven benefits;
  • Claims to be vegan and vegetarian friendly;
  • Relatively low amounts of caffeine;
  • Weight loss assistance from multiple angles.


  • Only sold through the official website.

What is Instant Knockout?

On paper, Instant Knockout is also a fat burner that promises to help you lose weight. In actuality, it wouldn’t be wrong to call it a fat-burning/fitness supplement hybrid. Here’s why:

Proposed benefits 

Unlike PhenQ, Instant Knockout fat burner doesn’t provide a neat list of its proposed benefits. But, the effects of this supplement can be summed up into the following key benefits.

  • Faster weight loss: Instant Knockout claims to increase the natural fat oxidation rate of your body with the help of Caffeine, Green tea, and B Vitamins.
  • Easy cutting: Cutting — or staying at a calorie deficit — can be one of the hardest parts of a weight loss journey. This supplement helps you get through this phase by suppressing your hunger with Glucomannan. Plus, it also boosts your energy levels with Caffeine and Capsaicin so you don’t feel sluggish.
  • Improved performance: With the help of L-Theanine and Caffeine, Instant Knockout promises increased workout performance that should help you get past the frustrating workout plateau.


  • Helps you control your calorie intake;
  • Offers faster muscle growth;
  • Improves cardio and weight training performance;
  • Manufactured in FDA and cGMP-approved facilities.


  • High Caffeine content might cause issues for some people.

Key differences between the two

The difference between PhenQ and Instant Knockout stems from the extent of their proposed benefits. 

PhenQ is solely focused on helping you lose weight and it utilizes several methods and unique ingredients to achieve that.

Instant Knockout, on the other hand, takes things a step further. It helps you develop a lean physique by assisting with the cutting phase and improving your workout performance.

Shared ingredients 

PhenQ and Instant Knockout have two ingredients in common. These are:


Caffeine intake boosts thermogenesis and energy expenditure — allowing you to shed excess fat faster without changing your diet or workout routine. Caffeine can also improve your muscle strength so you can increase the intensity of your workout sessions.

Cayenne pepper/Capsimax powder

Yes, these are two different ingredients on paper, but they both rely on the same set of chemicals for their benefits; Capsaicin and Capsaicinoids. These compounds can boost fat oxidation and also act as active hunger suppressants.

PhenQ unique ingredients

PhenQ contains four ingredients that are not in Instant Knockout, including:

α-Lacys Reset

α-Lacys Reset is a patented blend that promises to increase your natural fat metabolism, accelerate muscle growth, boost energy levels, and reduce post-workout recovery times.

Chromium Picolinate

Chromium Picolinate is an active hunger suppressant that makes you feel full with less food. Its use can also curb the cravings for unhealthy, carb-filled snacks.

Nopal cactus

As mentioned earlier, Nopal cactus is a fiber that binds itself to dietary fats. This prevents those fats from getting absorbed by your system and causing weight gain.

L-Carnitine Fumarate

Studies show that L-Carnitine Fumarate supplementation can boost your body’s natural fat-burning properties. Its intake also makes you feel more motivated and improves your mood as a whole.

Instant Knockout unique ingredients list

Instant Knockout has seven unique components. These include:


Glucomannan is a powerful hunger-suppressant dietary fiber that absorbs water in your stomach and makes you feel full. This makes cutting easier and helps you regulate your calorie intake in the future.

Green tea extract

Green tea extract increases your energy expenditure. This prompts your body to compensate by converting stored fat into energy — leading to noticeably faster weight loss.


Taking regular L-theanine supplements can increase your alertness and reduce mental fatigue after intense workout sessions so you can work out more often.

Black pepper extract

The piperine in Black pepper increases the bioavailability of other ingredients by 30-200% — increasing the effectiveness of Instant Knockout as a whole.

Vitamin B12

Vitamin B12 can increase your base energy levels if you pair its supplements with a nutritious diet. If utilized correctly, these higher energy levels can enable you to increase the duration and frequency of your workout sessions.

Vitamin B6

Studies show a direct correlation between Vitamin B6 intake and higher dopamine synthesis. This increase can make you feel happier and more motivated to work hard for your weight loss goals.

Vitamin D3

According to a 2012 study by Salehpour et al., Vitamin D3 supplementation lowers body mass index in just 12 weeks. Though, more research is required on how this correlation works.

Side effects

Both fat-burning supplements claim to have safe natural ingredients with zero recurring side effects. Even if these claims are completely valid, we still advise being vigilant when using these supplements.

One potential issue we noticed with these supplements is their high Caffeine content. While it won’t be a problem for most, it can cause dizziness, headaches, and insomnia if you have low Caffeine tolerance. 

Also, keep in mind that we do not recommend these supplements for folks that are pregnant, nursing, or have a major illness.

Prices and Offers

Here’s how much you’d have to spend for these fat burners and what you get in return:


Each bottle contains 60 capsules

(1 montth)

  • Its 2-month bundle includes one bottle for free.
  • The bulk option is a 3-month supply and includes 2 free bottles.
  • Every purchase also comes with free worldwide shipping and a 60-day money-back guarantee.

Instant Knockout

Each bottle contains 180 capsules

(1 month)

  • You can get its 2-month package with includes free UK and US shipping;
  • Its 3-month bundle comes with one extra bottle and worldwide shipping for free;
  • The two and four-month supply of Instant Knockout also includes a free Boss Shred (video program and nutrition E-books).


The choice between these two supplements comes down to what you want. 

If you’re after a healthier body with low fat, PhenQ would do you just fine. But, if you want to take the next step on your fitness journey and develop strong, bulky muscles, Instant Knockout appears to be the better option. 

That said, no matter which of the two you choose, make sure to pair it with a proper diet and exercise routine for the best results.

Editor's Choice: PhenQ

Overall Rating: 
4.9/5 stars




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About the Author

Sam is a passionate health and fitness enthusiast who has been interested in supplements, fitness, and wellness for over 10 years. He is the founder of Great Green Wall - the health and wellness brand and has completed multiple fitness certificates, including personal training and nutrition certifications. Sam has been working as a personal trainer for the past three years and is dedicated to helping his clients achieve their fitness goals and lead healthier lifestyles. He believes that a healthy lifestyle is crucial to a happy and fulfilling life and is committed to sharing his knowledge and passion with others.

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