Catalyst by Strength Sizzle Thermogenic Fat Burner Supplement

Catalyst Thermogenic Sizzle Fat Burner Review

In this Catalyst Sizzle Thermogenic Fat Burner by Strength Review, we’re going to take a look at a product that has lately been making waves in the fat burner supplement industry.

It’s manufactured by a relatively new company called Strength, and they have a couple of amazing products in their repertoire, especially their pre-workout supplement and whey protein.

That said, this newcomer into the sports nutrition world has released two Fat Burning products called Sizzle and Shred, one being a thermogenic fat burner, the other – a proper herbal alternative.

We’re more interested in the thermogenic variant – so we’re going to take a close at it, and all of the ingredients contained in it, and tell you our verdict – whether it’s a good product that’s worth your time and money or just a waste of space.

Incidentally, you can check out how it stands up to other such supplements by going to our top 10 list for both men and women Best Fat Burner Supplements for Men and Best Fat Burners for Women.

Overview: What is Catalyst Thermogenic Sizzle Fat Burner by Strength?

Catalyst Sizzle by Strength is a thermogenic fat burning formula that is designed for weight loss.

The product claims to provide its users with safe and rapid fat loss as well as a boost in energy, by increasing metabolism and providing a thermogenic effect.

It also claims to help suppress appetite so that you consume fewer calories throughout the day.

In addition to that, it can be a great idea for women to combine fat burners with the best pre-workout for women supplements to get even better and faster results. For men, depending on your goals, you may want to combine these with the best BCAA products, the best mass gainers, the best test boosters, and also the best creatine for men supplements

Now, let’s not drag out this review by more introductions and instead go directly into the ingredients to see if all the high claims can be substantiated.

Ingredient Analysis

Catalyst Sizzle Fat Burner Ingredients List

The recommended dosage is 2-3 capsules per day, depending on sensitivity to stimulants.

We think three would be a bit of an overkill since that would give you more than 450mg of caffeine – which is only recommended for hardcore athletes and those who want an incredibly strong effect.

At first glance, the ingredient profile is fantastic, except for a couple of details:

The first detail is that it contains a small proprietary blend called i-FAS 50 (A Proprietary Blend of Extracts of Camellia sinensis, Polygonum multiform, Loranthus parasiticus)

Let’s take a look at all three ingredients in it:

Camelia Sinensis is a simple tea leaf which has antioxidant properties and can boost metabolism. It’s a weird choice to include it in the proprietary blend when there’s already 100 mg in the supplement as it is.

Polygonum Multiform is called Tuber Fleeceflower in the USA and is a well-known adaptogenic herb in China called Fo-Ti root (He Shou Wu).

It has a plethora of immensely healthy benefits and is known to increase life longevity as well as sexual drive in both men and women. It also has a metabolism boosting and hunger suppressing effect.

Loranthus Parasiticus is also known as Mulberry Mistletoe and is a very popular and revered Chinese medicine herb. Its main uses are lowering cholesterol and providing diuretic, antibacterial, and antiviral effects.

It has a synergistic effect with Green Tea Extract to promote weight loss and suppress appetite.

They all seem fine ingredients, although the doses are a mystery, which is never a good thing.

The second detail that stands out is the inclusion of Raspberry Ketones. Sadly, this ingredient has only shown extremely small weight loss results at best and has a substantial lack of clinical trials that prove any significant benefits. It is pretty much useless.

It’s a fad ingredient, and sadly this manufacturer has also jumped on the hype bandwagon, like many others.

Now that we’ve checked the anomalies, let’s look at all the main ingredients:

This supplement contains quite a comprehensive Vitamin B Complex, including B1, B2, B3, B6 and B12 in significant quantities.

This vitamin group is extremely important when undergoing intensive exercise, and they are a must if you want your body to function properly and optimally during training.

Caffeine from Coffee Beans – the main thermogenic ingredient and one of the most popular stimulants in the world. We all know what it does so let’s skip it.

Green Tea Leaf Extract – It contains Catechins, especially the most important one called EGCG (Epigallocatechin Gallate), which is known to significantly increase metabolism and target stubborn adipose tissue, like belly fat, to be used for energy.

Advantra-Z (Synephrine) – This is the industry-leading thermogenic stimulant with over 30 different studies that attest to its efficacy.

Rosemary Extract – The research is still a little inconclusive when it comes to this ingredient. However, studies seem to suggest that it helps reduce fat accumulation and increase muscle mass gain when a test subject was in a fed state and to induce a fat burning effect while preserving muscle mass when the subject was in a fasted state.

Sadly, the dosage used in clinical trials was higher than the one in this product, so it’s, unfortunately, under-dosed to provide any significant results.

TriNeuroPlex (Crocus sativus) 2% Saffranal – This ingredient is commonly known as Saffron, a widely sought-after spice. It has nootropic benefits, improves mental state, cognitive function and increases focus.

It’s also extremely rich in various vitamins and minerals and is a powerful anti-oxidant.

Bioperine (Black Pepper Extract) – This substance significantly increases the bioavailability and absorption of other ingredients.

Fat Burner Facts – PROs and CONs of This Supplement

Catalyst by Strength Sizzle Thermogenic Fat Burner Supplement Container

We’ve taken a careful look at the ingredients, and we like what we see. Now let’s look at the facts!


  • Affordable
  • Amazing Ingredient Profile
  • Massive Thermogenic Effect
  • Offers an All-Natural Herbal Alternative
  • Backed by clinical studies
  • Massive Energy Boost


  • May Cause Jitters
  • One fad ingredient is included

Unfortunately, with the number of stimulants that’s present in this supplement, especially Caffeine – jitters are sometimes unavoidable and a good number of users reported experiencing them.

However, this is extremely common in almost all stimulant-based fat burning supplements.

The inclusion of Raspberry Ketones is also strange, as this ingredient has only very mild weight loss results and is unreliable.

The Final Verdict of Catalyst Thermogenic Fat Burner by Strength

Ingredient Safety:95%

Product Efficacy:98%

Value For Money98%

We love it! If you don’t mind the large dose of caffeine, this product is an absolute monster and provides everything that it promises!

Another great addition to the Catalyst by Strength supplement line that we can wholeheartedly recommend to both beginners and advanced athletes who want to shed unnecessary fat!

We love it when a relatively new manufacturer comes into the playing field and shows the old-timers how it’s supposed to be done!

It has a couple of minor gaffes and mistakes, like one slightly under-dosed ingredient and one fad ingredient that’s lacking in any scientific studies that prove results of any significance, but we can certainly forgive it these minor transgressions when we’re looking at the big picture.

And that big picture is phenomenal!

You know what else is phenomenal? Some of the most top-rated products on these lists:

The Best Stimulant-Free Pre Workouts

The Best Post Workout Supplements

The Best Tasting Protein Powders

The Best Pre Workout Supplements for Men

The Best Protein Powders for Women


Catalyst fat burner by Strength is a great choice for people who want to increase energy for intensive workouts and rapidly burn fat. It delivers on what it promises and does so spectacularly!

Our experience with this product was phenomenal, and we can easily recommend it for those who want to speed up their fat burning process!

So what are your thoughts on Sizzle Catalyst by Strength? Have you had the pleasure of trying it or maybe you’re just considering it?

We’d love to hear your thoughts on this and other fat burners in the comments below!

Train Hard and Stay Shredded!