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Calotren Review - 12 Things You Need to Know

Calotren is a weight-loss supplement that utilizes the protein collagen to achieve its long list of alleged benefits. The company promises everything from better sleep to higher energy levels and improved digestion, so we knew we had to know more.

However, we ran into a lot of trouble when we searched for scientific data supporting these claims. We found no trials on Calotren completed with humans, which was concerning to our research crew. We delved deep into this product’s side effects and user testimonials to accurately weigh its pros and cons. Then, we condensed everything so you can have the bottom line.

Calotren can be purchased through their Official Site.

Calotren Readers: Noom is offering our readers a risk-free trial, for a limited time. Click here for more information!

What is Calotren?

Calotren belongs to the family of weight-loss supplements. It’s available in both liquid and capsule form. The product is based on a protein formula claiming to help the body shed excess body fat.

The product addresses the need to lose body fat while gaining muscle mass and prioritizing the drop-in body fat.

The supplement is designed to help the body regulate its metabolic balance for having the proper weight. The protein formula is hydrolyzed collagen.

Now collagen is big right now, but is it the right form of protein for weight loss?

  • Marine Drugs – There is evidence that some forms of collagen do help with weight loss. Research specifically connects collagen sourced from skate skin to “suppression of fat accumulation and regulation of lipid metabolism.”
  • Nutrients – There’s even some indication of improved body composition in otherwise healthy men who supplemented with collagen and performed resistance exercise.
  • Nutrients – But, another study in the journal, Nutrients from 2019 shows that whey protein is more effective at aiding in weight loss than collagen protein.

Calotren Competitors

Liquid Biocell
Vital Proteins Collagen Peptides
Side Effects

Who Makes Calotren?

Top of the World Distributors is the company behind Calotren. Founded in 1997, the company puts a focus on offering quality supplements for health and wellness.

According to Top of the World Distributors or Top Health Source, all products have been “evaluated and researched” by a team of health professionals and experts in their field. On top of that, the company also offers a line of:

We’re not sure how the company managed to make it more than 20 years without complaints, but according to the Better Business Bureau file, the company has an A+ rating. Plus, the company has been accredited by the BBB since May 1, 2000.

How to Contact Calotren Customer Service

Reach out to a customer service representative by phone, email, or mail. There’s also a live chat available during normal business hours.

Call: 800-325-4366

Email: info@tophealthsource.com

Write: 100 N 1st St, Union City, TN 38261

Calotren Customer Testimonials

Calotren Claims

Calotren claims include:

  • Avoid lean body mass loss
  • Lose body fat
  • Maintain muscle mass
  • Restores muscles
  • Increase athletic performance
  • Promote health and wellness

Calotren Ingredients

Ingredients include:

  • Hydrolyzed collagen
  • ProHydrolase

The active ingredient in Calotren is hydrolyzed collagen. Collagen is the most abundant protein in the human body. Collagen plays a role in promoting healthy lean muscle and weight loss, based on a study in the American Journal of Health Promotion.

The company claims the collagen protein used is of the highest standards and designed to sync with our digestive system.


Does Calotren Work?

In addition to the studies already mentioned, is there any other science connecting collagen protein to weight loss? Results vary from person to person. However, there’s research showing the effectiveness of collagen. According to the Journal of Medicinal Food, “oral supplementation with specific BCP [bioactive collagen protein] over 6 months led to a clear improvement of the skin appearance in women suffering from moderate cellulite.”


Calotren Benefits

The claimed benefits of Calotren include:

  • Weight loss
  • Weight management
  • Build lean muscle mass
  • Fat burning

How to Use Calotren

The recommended dosage is four capsules at bedtime. You will need to take Calotren on an empty stomach, or at a minimum two to three hours before your last meal.


Where to Buy Calotren and Calotren Prices

Calotren can be purchased on the official website, GNC and Amazon.

Prices include:

  • One month supply – $69.95
  • Two month’s supply – $139.90
  • Three month’s supply (three free bottles) – $209.85
  • Four month’s supply (four free bottles) – $279.80
Bottom Line

Calotren Potential Side Effects

The company doesn’t mention the side effects of Calotren. There’s also research presented in the journal Marine Drugs stating there’s was “no evidence of significant adverse effect or health risk was indicated from the chronic toxicity assessment of [collagen].”

Despite this research, the human body will react to any supplement and, in some cases, that reaction is considered adverse or a side effect. For collagen, some have reported a lingering poor taste, according to Seminars in Arthritis and Rheumatism. Our researchers also found mention of gastrointestinal issues in the same study.

Calotren Warnings

According to the label, Calotren warnings state not to exceed the recommended dose. Also, the collagen supplement is manufactured and packaged in a facility which may also process the known food allergies – milk, soy, wheat, eggs, peanuts, tree nuts, fish, and shellfish.

What Users Are Saying

“It really did not work for me. I heard about it on the radio and gave it an honest try. We are all made different.”

“I used Calotren for over 3 months hoping that it would eventually “kick in” – this never happened. Although I did not gain any weight, I never lost a pound.”

“I lost 15 pounds and my wife lost weight, too. Guess we are all different.”

Calotren Ingredients

The Bottom Line on Calotren

Let’s take a closer look at our results, shall we? Calotren is a weight management supplement containing the clinically-effective ingredient collagen. While there are benefits to the collagen supplement, there are also alternatives to add to an existing weight management plan.

We’re all for moving toward a healthier life, and we know that means living at your healthy weight. Making lifestyle changes can sometimes be difficult, and that’s where a clinically-proven system comes into play.

Among the best weight-loss support apps we’ve seen Noom. Noom provides users with human coaching, an easy-to-use app, personalized meal plans, and so much more.

Plus, for a limited time, Dietspotlight readers can try Noom as part of a free trial offer. Check out more on Noom today.

Learn More About Noom »
Calotren Review
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What are the side effects of Calotren?

Calotren side effects may include stomach discomfort, cramps, gassiness, nausea and diarrhea.

What is in Calotren?

Calotren ingredients are filtered water, Collagen Hydrolysate, Aloe Vera, Vegetable Glycerin, Natural and Artificial Raspberry flavor, Potassium Sorbate, Citric Acid and Sodium Benzoate.

Does Calotren work?

The company provides information about the benefits of protein and digestive enzymes. We found that there’s no scientific research connecting Calotren to weight-loss or improved health and wellness.

How much does Calotren cost?

Calotren costs $69.95 for the liquid or capsules. If you purchase two bottles, you’ll pay$139.90, $209.85 for three and $279.80 for four.

How should I take Calotren?

You should take Calotren a minimum of three hours prior to sleep. You take one teaspoon or four capsules with water. The company recommends taking the supplement for 90 days.

Where can I buy Calotren?

Calotren can be purchased using their Official Site.

What can I drink before taking Calotren?

You can drink water before taking Calotren.

How much protein is in a serving of Calotren?

Each serving contains 3g of protein.

Do I need to diet on Calotren?

No, you don’t need to diet on Calotren, but the company recommends eating healthy to maximize results.

Why do I need to take Calotren at night?

You take Calotren at night because the majority of food consumed is digested.

What is the source of protein in Calotren?

The source of protein comes from beef and marine foods.

Is there a guarantee with Calotren?

Calotren offers a 45-day money-back guarantee. You can return purchased items for a 100% refund. This policy doesn’t apply to items received as free gifts.

Is Calotren safe?

Supplements aren’t tested by the FDA, so there’s no “safe” or “unsafe” label attached to these products. With that said, we’ve found no indication of issues regarding the intake of collagen protein. If you’re concerned about possible side effects, interactions or other health issues, seek medical advice prior to starting Calotren.

21 Calotren Reviews

  • Calotren works differently on different people
    Michele (Verified Purchase)

    I’m going to go out on a limb and say that Calotren – just like any other weight loss program – works differently on different people. I’m just sayin’ – I mean anyone with any sense knows that not everything works on everybody the same way. Thanks!

    • Diego

      Be that as it may, there is no scientific proof of any results. That’s really all this article is saying. An educated consumer would not be able to justify paying $70 for this product.

  • Hated the product.
    Linda C (Verified Purchase)

    I have taken this diligently for just over a year now. Exactly like I`m supposed to. Even did 3 rounds of Probiotics purchased thru same company as suggested. To date, I have not lost 1 single pound. Nor any inches. Nothing whatsoever. Very, very disappointing. I tried so seriously. Hoping.

    • Victoria (Editor)

      Hi Linda! We’re sorry that you didn’t achieve the results you wanted with Calotren. Have you tried looking into other metabolism boosters and fat burners? You should check out Dietspotlight Burn!

      • Cathy Zimmerman

        Ms. Linda,
        You are not alone, I run 4-5 times a week and take the pills at the same time every night, and have not lost even a pound. I have fought with my weight my entire life. I was the only 5 year kid on a diet. Been in the Army 24 years and weight is such a critical topic.

        • Joanne

          I’m on the 5th month and not only I haven’t lost a lb I have actually gained 3 lbs. which is terrible since I have 20 to lose

  • Patience is definitely the key here.
    June (Verified Purchase)

    Calotren works but it does take a while. You must be diligent in taking each night. It was not until the 13th week that I noticed my clothes were loose when usually tight and at that moment became a believer in the product and continue to use. Patience is definitely the key here. Thanks Calotren!

  • Lost a Little Weight
    Cindy N (Verified Purchase)

    My husband and I both started Calotren right after Thanksgiving 2014…not yet reached 60 days. He has lost a little weight. I have not really seen any weight loss but have been able to move down from size 18-20 to my size 16 pants already. Can’t wait to see how things continue if things normally take at least 90 days for any real results as the instructions say. We have not changed anything at all about our routine or meals. Oh we are both 56 years old and remaining optimistic.

  • Lisa Dantin

    I started Calotren in october, I have taken it nightly for 109 days. I started losing inches after about the second bottle I was on. I am now on bottle 4 and have lost one pant size and 10.2 lbs. I do believe you start to see the best results after your 90 days. I had been having trouble with both of my legs hurting at night after doing a complete split while mopping my closet in Auguest 2012…

    I would turn from side to side all night long with shooting, stabbing pin-like pain in both legs…I can honestly say the pain is now gone, and I sleep so much better now. I am on NO diet, and eat whatever I want…please give it at least 90 days to see results…it is awesome, and I will continue to take it!

  • Never lost a pound but it helped me to sleep through hot flashes better.
    Sarah McDonald (Verified Purchase)

    Never lost a pound, but after ripping my rotator cuff in my shoulder, it worked wonders at healing it. Also, as an older woman approaching menopause, it helped me to sleep through hot flashes better.

    • Montana (Editor)

      Hi Sarah! If you’re looking for a way to lose weight, you may want to check out Dietspotlight Burn!

  • Two months passed and haven't lost a pound
    MS (Verified Purchase)

    Two months and haven’t lost a pound and have followed what they said, 4 pills with water at bedtime and no food 3 to 4 hours before.

  • This product works. I love it!
    Shauna (Verified Purchase)

    I have been taking Calotren for over a year now. The first month of use I didn’t notice any change in weight loss, the second month, I dropped an entire pant size. I’m not a heavy person, size 10 and I dropped to a good size 8 (my clothes fit really good, not to tight and not to baggy). I had no change in my diet. Nor did I drink water with taking the pill and still had success.

  • Hated the product
    Dawn (Verified Purchase)

    I’ve tried Calotren for a month and although I eat a healthy, low fat calorie diet averaging between 800 and 1000 calories a day, I haven’t lost any weight at all. I feel it was a waste of my money.

    • Anonymous

      unless you are a ” little person ” you should be eating at least 1200 caleries a day so your body doesn’t go into famine mode and store everything.

  • Jackie

    I have been taking Calatren now for 5 month and no weight loss……

  • Hated the product.
    Kelly (Verified Purchase)

    I tried Calotren for three months. Did not loose any weight. It was a waste ofmy money. Would not recomend it to anyone.

  • Debra Abshier

    I take it a 10pm right before going to bed and then I can not go to sleep until 3am. I have tried everything to lose weight and thought since Bama Brown lost 100lbs it must be the best product for me. I tried to take this for 2 weeks with no weight loss and no sleep. Dont like it. im going to stop taking this product.

    • Julie Mortenson

      My husband bought 6 bottles for my daughter and myself because Bob Cole at KVET had lost weight on it since I think December. But the thing you don’t hear in the ads is that (it tells you this in the book that comes with it) you’re supposed to give up starches while on it. Well, heck I know I can lose weight if I completely give that up. But they made it sound like you didn’t have to do anything special to lose weight while on this. BTW my daughter and I have not lost hardly anything yet.

    • Sara Tanner

      I have never slept better with this product! And it has aided me in losing 20 lbs in the last two months. Other than watching my fat intake and taking Lipozene, I am not actually dieting. I know three people personally that did nothing but take this product and still lost approx. 5-6 lbs per week.

      • Renee

        I sleep great when I take Calotren. I have more energy and therefore I am more active and that might be why I lose weight with it but either way I totally recommend anyone give it a try.