Updated: 07/18/2017 - Site sponsored by Dietspotlight Burn
By Summer Banks Jun 07, 2017

Can you burn fat without stimulants? Let’s find out by taking a closer look at Cellucor CLK ingredients, side effects, and clinical research. Hundreds of user reviews came into play. Then, we compiled the facts to give you the info you need.

Cellucor CLK Readers: Click here to find out why we're giving away samples of our product, Dietspotlight Burn.

What is Cellucor CLK?

To begin, Cellucor CLK is a “stimulant free” fat loss supplement. The ingredients are conjugated linoleic acid (CLA), L-carnitine tartrate, Razberi-K raspberry ketones and Slimpro protein. The supplement helps tone and sculpt your body, while getting rid of unwanted fat. You need to take three softgels in the morning and again in the afternoon.

Cellucor CLK, around since at least 2013, is a supplement made by Cellucor. It’s a staple at local stores and on the official website. We like the promising ingredients and the supportive user reviews. Does it work? Read on…

Effectiveness – “All About the Ingredients”

The first thing noted was the effectiveness of Cellucor CLK ingredients. “When there’s a promising profile, we start to take notice,” said our Research Editor. ” This one offers natural ingredients, without the stimulation.”

“I stacked this product with Cellucor’s Super HD. Together, the two curbed my appetite pretty well,” said a customer.

“I love CLK! It’s a better appetite suppression,” mentioned another.

Does every user think it works? Let’s see.

“Stacked this with the cellucor super hd. Great combo together,” commented a user.

“Good Product to have in your arsenal when looking for optimal fat loss,” offered another.

Cellucor CLK Side Effects – “Positive”

We asked about Cellucor CLK side effects, and the results were better than expected. One person stated, “Very good product. It simply works for me, and I like the after taste. The best part is stimulant free.”

“I’m sensitive to stimulants, so I can take this not feel like my heart is going to beat 1000 times a minute,” revealed another.

While some users noted side effects, we continued to look for customers seeing positive results.

“I stacked this with HD and the results were pretty amazing,” commented a customer.

“It helped curb my appetite,” offered another.

Our research shows a connection between positive side effects and lasting results. There’s no issue if dieters use Cellucor CLK and don’t report negative side effects.

The Science – “Science-Based”

Research is one of the pillars of the review process. Naturally-derived, Slimpro protein hydrolysate is one of the active ingredients. It helps promotes satiety and helps you feel full. L-carnitine tartrate is a transportation mechanism, concerting fatty acids to energy. The scientific community is one the fence regarding raspberry ketones, but there’s research showing it promotes fat burning. Conjugated linoleic acid also enhances energy levels.

The Bottom Line – Does Cellucor CLK Work?

A breakthrough toning and sculpting supplement, without the stimulants? Does Cellucor CLK deliver? Well, based on the ingredient profile and positive user reviews, there’s a change. There’s research into this blend and there’s a trusted name behind the product.

Losing weight is a journey. Another one brought to our attention is a supplement containing ingredients backed by research and positive user reviews.

Among the best products we’ve seen this year is one called Dietspotlight Burn. This product offers a proprietary blend of four ingredients; shown in published scientific studies to help ignite fat loss, curb appetite, and boost metabolism. Customers tell us they see great results.

The makers of Dietspotlight Burn are so excited about their product they’re offering a Special Trial Offer, which is very reassuring.

Previous Cellucor CLK Review (Updated June 25, 2012):

What You Should Know About Cellucor CLK

Cellucor CLK is a new weight loss supplement from Cellucor. The supplement is not the company’s first attempt at formulating a dietary aid that boosts weight loss and this try is not exactly a stellar attempt. Aside from Raspberry Ketones, the formula provides not proven weight loss benefits for the average dieter, but it does taste like raspberries.

List of Ingredients


  • Conjugated Linoleic Acid
  • L-Carnitine
  • Raspberry Ketones
  • Slimpro

Product Features

There are only four ingredients listed for Cellucor CLK. The first is conjugated linoleic acid, commonly referred to as CLA. CLA was an extremely popular weight loss ingredient about 10 years ago. According to studies, CLA may boost lean muscle mass for athletic users and concurrently reduce body fat, but the same cannot be said for average dieters. CLA has been associated with stomach discomfort and gastrointestinal side effects.

Raspberry ketones is one of the hottest ingredients on the market. Raspberry ketones have some support via in-vitro and animal studies, but at no point have human studies been completed on the extract.

Cellucor CLK Advantages

  • All ingredients for Cellucor CLK are listed online.
  • The product is available for sale online.
  • The softgels are raspberry flavored.

Cellucor CLK Disadvantages

  • Some users mentioned mild side effects

Cellucor CLK Conclusion

If at least one of the ingredients in Cellucor CLK was proven to spark weight loss or boost thermogenesis we could throw Cellucor a bone on CLK, but we found no evidence any of the ingredients in this formula are worth the $70 you’re paying for just one bottle. The flavoring is a nice touch, but it won’t make Cellucor CLK a better supplement. With additional research, raspberry ketones may be proven to support weight loss in humans, but a raspberry ketone supplement is far less expensive than Cellucor CLK.

Cellucor CLK offers four ingredients showing promise. Also, it's a stimulant-free product.

Cellucor CLK Ingredients and Supplement Facts

Serving Size: 3 softgels
Serving Per Container: 20
Amount per Serving% DV
CLA (Conjugated Linoleic Acid)1.7 g*
Stimulant Free Toning Blend1,014mg*
L-Carnitine Tartrate**
Razberi-K Raspberry Ketones**
Slimpro Protein Hydrolysates of Blue Whiting (Micromesistius poutassou)**

Other Ingredients: Gelatin, Glycerin, Soy Lecithin (Soy), Purified Water, Beeswax, Sorbitol, Natural And Artificial Flavor, Maltodextrin, Arabic Gum, Titanium Dioxide, FD&C Red #3, FD&C Red #40, FD&C Yellow #5, FD&C Blue #1, Protease, NAOH.

Cellucor CLK Questions & Answers:

We read and digested all the user comments about Cellucor CLK and condensed into this helpful FAQ.

What are the side effects of Cellucor CLK?

According to some customer reviews, Cellucor CLK side effects are mild.

What are the ingredients in Cellucor CLK?

Cellucor CLK ingredients include l-carnitine tartrate, Razberi-k raspberry ketones, Slimpro protein hydrolysates of blue whiting, gelatin, glycerin, soy, purified water, beeswax, sorbitol, maltodextrin, flavors, and coloring dyes.

Does Cellucor CLK work?

Based on the ingredients, there’s a chance you’ll see solid results. There’s research showing the fat burning effects of CLA and raspberry ketones. There’s science backing Slimpro as an appetite suppressant.

How much does Cellucor CLK cost?

A bottle with 60 capsules costs $29.99 and a bottle with 90 capsules costs $39.99.

How should I take Cellucor CLK?

It is recommended that consumers take three soft gels in the morning and three soft gels in the afternoon. It is strongly advised not to take more than six soft gels per day.

Can I take Cellucor CLK if I have a health condition?

If you are pregnant, nursing, under 18, or suffer from any kind of health condition, or take prescription medications, consult your physician before taking a weight-loss supplement, including Cellucor CLK.

What do users like about Cellucor CLK?

Customers seem to like the flavor of Cellucor CLK.

What do users NOT like about Cellucor CLK?

Some users didn’t like the raspberry flavor, but loved the benefits.

How do I contact the Cellucor CLK customer service?

Cellucor may be contacted about Cellucor CLK by phone at 866-927-9686. They also provide their e-mail on their website, which is support@cellucor.com.

Do I need to change my diet for Cellucor CLK?

Though it is not a requirement to change your diet while using Cellucor CLK, healthy eating habits may help aid in your weight-loss journey.

Do I need to exercise to take Cellucor CLK?

Exercise is not required for the use of this supplement, though it is recommended for the best results.

Does Cellucor CLK come with a guarantee?

Cellucor provides a 100% money back guarantee on all of its products for 30 days after delivery.

Do you know of any special deals or discounts on Cellucor CLK?

There are special deals or discounts on Cellucor CLK. The official website offers discounts on shipping and additional discounts when you sign up for the email newsletter. However, one that’s caught our attention is one called Dietspotlight Burn. With a high satisfaction rate, manufacturers are sure you will love it too, which is why they are offering a Special Trial Offer to all customers. Click above to learn more.

Learn More About Dietspotlight Burn »
Summer Banks Dietspotlight Author
About the Author:

Summer Banks, a content strategist at Dietspotlight, 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.

Rating: 3.7. From 30 votes.
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