What is ProbioSlim?

By Derek Lakin
HighYa Staff
Updated on: Oct 31, 2017

Containing a revolutionary probiotic LactoSpore, Probioslim is a supplement that promises to help you with healthy digestion, recharge the good bacteria, and promote weight loss.

According to the website, Probioslim states that by combining “groundbreaking” probiotics and prebiotics with “revolutionary” weight loss ingredients. In fact, the company specifically claims ProbioSlim is “one of the best ways to lose weight,” safely and naturally.

On top of this, ProbioSlim promises that each one of their ingredients has been researched and vetted by the company’s Harvard- and MIT- trained scientists. As a result, you may notice some benefits within days of starting ProbioSlim, with maximum benefits occurring in about three months’ time.

It seems like there’s always some new weight loss bandwagon to jump on, but is this probiotic the real deal? Can you expect it to help you lose weight? If so, how much? These are all important questions we’ll help you answer in this review.

First, Some Background About Probiotics and Prebiotics

To understand how products like ProbioSlim work, we need to quickly talk a little biology.

Your body is home to about as many bacteria cells as your own, most of which are housed in your digestive tract. There, they help aid in digestion by breaking down food and protecting the body from potentially harmful byproducts or other microorganisms.

The really neat thing is that, like fingerprints, each of us has a unique bacteria makeup in our gut, based on the foods we eat and our exposure to the environment in which we live.

Now, there are two important things to remember here. First, as you might imagine, not all bacteria are good for us. Second, everything we discussed above occurs under ideal circumstances.

Taking these ideas together, there are certain instances where too many non-beneficial bacteria can accumulate, potentially leading to digestion problems (gassiness, bloating, etc.), weight gain, lethargy, and even a decreased immune response.

To combat this situation once it occurs, you can take a supplement containing billions of beneficial bacteria cells, known as a probiotic. These help repopulate your gut with specific bacteria strains that can help reduce bloating and gassiness, relieve constipation, decrease certain allergic reactions, boost immune response, and more.

What Kinds of Results Can You Expect with ProbioSlim?

Although there isn’t a label on the ProbioSlim website, we’re told it contains LactoSpore probiotics, green tea leaf extract for weight loss, and fig, kiwi, and papaya extracts as prebiotics. Let’s break each of these down.

LactoSpore is a proprietary probiotic formulation consisting of the Bacillus coagulans bacteria strain, which is owned by the Sabinsa Corporation. The company claims it has been used in clinical trials for the “treatment of gastrointestinal disorders, vaginal infections, hypercholesterolemia, lactose intolerance, hepatic coma and precoma and as an adjuvant to antibiotic therapy.”

Notice anything? Weight loss isn’t among any of LactoSpore’s clinically proven benefits. In fact, there is very little clinical evidence showing that probiotics in general (not just ProbioSlim specifically) can help you lose weight. What about the other ingredients?

The fig, kiwi, and papaya extracts in ProbioSlim only act as a prebiotic, or a food source, for the billions (numbered in colony-forming units) of bacteria contained in each capsule. As such, these ingredients won’t help you lose weight.

Finally, we have green tea leaf extract. Here’s how the company markets it:

“An innovative green tea complex helps enhance thermogenesis and fat oxidation so you can burn more calories. Caffeine provides a boost of energy and helps control appetite as part of a reduced-calorie diet.”

Green tea is a long-studied drink that contains polyphenols (antioxidants) and epigallocatechin gallate (EGCG), which might help provide some heart-healthy benefits, much-needed hydration, and bodily support.

However, while there is some limited evidence showing these substances can boost metabolism, the increase is so slight that it likely won’t have any meaningful effect on your weight.

ProbioSlim Side Effects

While the green tea leaf extract in ProbioSlim probably won’t cause you to lose a meaningful amount of weight, the good news is that it probably won’t cause any side effects worse than mild digestive upset, either.

However, keep in mind that green tea has some natural caffeine content (often about as much as a cup of coffee), so this might affect you more strongly if you’re especially sensitive to stimulants.

As far as probiotics in general (not ProbioSlim specifically), the most common side effects reported are gas, bloating, and digestive upset—which is weird, because aren’t these the symptoms probiotics are supposed to address in the first place? In most cases, if you experience anything at all, these side effects will typically subside within a couple of days. If not, you’ll definitely want to speak with your doctor.

Is ProbioSlim Advanced More Effective for Weight Loss?

Recently, the company released ProbioSlim Advanced. In addition to the LactoSpore brand of probiotic we discussed above, the supplement also contains Meratrim, PreticX, and a Premium B Vitamin Matrix (B1, B2, B6, B9, and B12), as part of their LS9947 Super Lipolytic Megablend. Are these any more effective for weight loss?

Meratrim is a proprietary ingredient that combines garcinia mangostana and sphaeranthus indicus. Unfortunately, neither Meratrim nor the ingredients it contains have much (or any) clinical evidence showing them to be effective for weight loss. However, these constituents do appear to have some antioxidant, anti-inflammation, anti-cancer, and anti-diabetic effects.

We didn’t find a website for PreticX, although we did come across several press releases from early 2015. According to this release:

“PreticX is a GRAS certified and Non-GMO verified prebiotic that has been shown in clinical studies to significantly increase the proliferation of bifidobacterium in both low and high doses.”

While PreticX might help “feed” bifidobacterium (a strain of probiotic), keep in mind that there doesn’t appear to be any bifidobacterium in ProbioSlim, so it might not have any of these same benefits. And even if there was, as we discussed above, there isn’t enough clinical evidence to say that any strain of probiotic bacteria can help you lose weight.

Finally, unless you’re deficient, we didn’t encounter any clinical evidence that vitamins B1, B2, B6, B9, or B12 can help individuals lose weight.

ProbioSlim vs. Other Probiotic Supplements

You probably know that there are hundreds of different probiotic supplements available, both online and in-store. Compared to the competition, what sets ProbioSlim apart? Why is it worthy of your attention? According to the company:

“Unlike other probiotics, the ingredient LactoSpore® forms its own spores that protect the release of probiotics until it has safely passed through the harsh environment of the stomach and reached the colon. This prevents stomach acid from killing off the beneficial microorganisms and counteracting ProbioSlim’s effects.”

Is this necessarily unique, though? In short, yes and no. For example:

  • PerfectBiotics claims to use a unique fermentation process to help bacteria pass unharmed through your stomach.

  • Culturelle features a special species of bacteria that are especially resistant to stomach acid.

  • Probiotic Pearls features True Delivery Technology, a proprietary encapsulation process that decreases the chances of stomach acid destroying any bacteria before making their way to your gut.

We could keep going, but the point is that: 1) Many other supplements also feature LactoSpore, so ProbioSlim isn’t necessarily unique in this aspect. 2) Many other supplements also feature different technologies that allow their probiotics to sidestep stomach acid.

How Much Does ProbioSlim Cost?

One bottle (60 capsules) of ProbioSlim will cost you $69.99, plus $4.99 S&H.

You can also order a 14-day trial of ProbioSlim for $4.99 S&H. After 18 days (14 days for the trial, plus another 4 to allow for transit), you’ll be enrolled in their VIP program.

This means you’ll keep receiving a new bottle of the probiotic once per month and charged $74.98 each time (plus tax if applicable).

All orders come with a 30-day refund policy, less S&H charges. Note: According to the company’s Terms: “To receive your refund, your return must be received at our shipping facility within 30 days of purchase.” In other words, don’t wait until the 29th day to send it back!

In order to request a refund or to cancel your autoship enrollment, the company's customer service department can be reached at 877-452-7826.

Comparatively—although you’ll also find ProbioSlim available at dozens of local retailers like Walmart, along with popular websites like Amazon, the Vitamin Shoppe, and more—most other probiotics tend to fall in the $20-$30 range.

What Do Customers Think of ProbioSlim?

Here on HighYa, ProbioSlim has garnered nearly 56 reviews since our original writeup, giving the supplement a 2-star rating. Most compliments seem to reference better digestion, improved regularity, and just a generally “better” feeling.

On the other hand, most complaints appeared to reference failure to work and problems with the trial (usually that they were unaware they’d be enrolled in an autoship program). However, customer service seemed responsive and even replied directly to several complaints.

Elsewhere online, ProbioSlim had a 4-star average rating based on 45 reviews on GNC.com and a 3.5-star rating on Amazon, our of 823 customer reviews.

Is ProbioSlim a Good Probiotic and Weight Loss Supplement?

Based on all the available clinical evidence for the B. coagulans strain in general, and for the proprietary LactoSpore product specifically, it’s pretty clear that these probiotics (and many others) might be able to help provide a range of digestion-related benefits. Everyone’s different though, so just be sure to speak with your doctor beforehand.

Related to weight loss? According to the available clinical evidence, we think that if ProbioSlim did provide any boost to your metabolism, it would likely be slight.

Might it have a cumulative effect when combined with proper diet and regular exercise? Perhaps. But at twice the price of much of the competition, only you can decide if ProbioSlim provides enough value to make up for this difference.

Read 57 ProbioSlim Customer Reviews and Complaints

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Average Customer Rating: 2.0
Rating Snapshot:
5 star: 7 4 star: 5 3 star: 3 2 star: 6 1 star:  36
Bottom Line: 29% would recommend it to a friend
Showing 1-11 of 57
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  • 27 out 29 people found this review helpful

    Use a visa gift card for online purchases

    • Cleveland, TX,
    • Mar 14, 2015
    • Verified Reviewer

    I ordered the trial but didn't start taking the product until I read some reviews. After reading all of this on here, I will not start taking this product ever. I would like to add that you should get a visa gift card to order things like this instead of putting it on your credit card. This way if you don't like the product, they wont be able to bill you for anything else. They are one time use cards so once you spend all the money on the card, they wont be able to bill you for anything else later. This is the only way my family makes online purchases. This also helps with people somehow getting your credit card info since it's just a gift card. So once you spend all the money on the card, it won't matter who gets the card number.

    Bottom Line: No, I would not recommend this to a friend

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  • 57 out 62 people found this review helpful

    Ordered Trial, Then saw these Reviews.

    I ordered the trial of ProbioSlim and saw my account debited right away for $2.99. But what also made me suspicious was beside the charge on my bank statement, it also said "waiting for final amount from merchant". Why would it need to do that if it was indeed only $2.99?

    Then I stumbled upon this page where I started reading all of your reviews. How I was going to keep getting ProbioSlim and be charged for it after the trial period, without my knowledge or consent. How sneaky. So I called the phone number provided and asked to cancel. The gentleman asked me why I wanted to cancel. I was honest and told him that I was reading on a website that the Company keeps charging after the trial period and sending product, without the customer consent or knowledge, and I didn't want this to happen to me. He then said, ok, you've been canceled. Ha, no arguments what so ever.

    I asked for a refund of my $2.99, but he told me my trial of the product had already been sent out to me, so that was not an option. I can live with knowing I made a $2.99 mistake. I want to thank you all for potentially saving me hundreds of dollars.

    I never read anywhere on the ProbioSlim website that I was joining a membership, and the product would continue to be sent to me and billed to my account. They should be put out of business for cheating people, and being deceptive.

    Thank you again everyone, for saving me.

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  • 16 out 18 people found this review helpful

    Total rip!

    • KY,
    • Jun 5, 2015
    • Verified Reviewer

    My husband ordered these and the NEXT day called to cancel the auto shipping. They even called him to confirm and ask why we were cancelling and STILL they send the next bottle and charged us $75 + change! Called and, of course, had no record of the call. DUH.... And the kicker? They don't work any better than taking two aspirins.

    Bottom Line: No, I would not recommend this to a friend

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  • 29 out 31 people found this review helpful

    Do Not Buy

    • Missouri,
    • Jun 22, 2015
    • Verified Reviewer

    The product was not agreeing with me and I called to cancel and they would not cancel it for me. They said they would put my account on hold and they couldn't charge my account until it was off hold and they would call first before they charged my bank. Well, guess what? They took money out of my bank today without calling. I have a bill due in two days that is an automatic withdrawal and the money is not there now.

    I called Probioslim to report what happened and spoke with Tyler. He told me that the first person I talked with should not have told me they would call because they don't. Then Tyler said I could have a refund but it would only be 60% of what I was charged. I told him I wanted to talk to a manager and he put me on hold. I believe he came back on the line telling me his name was Chris. I told him he sounded a lot like Tyler and the phone went silent. I held on and finally he said that he had taken care of me and I would get a full refund in two to three days. My bill is due in two days. I told him it had better be in the bank tomorrow or they were getting a bill for the service charge. He continued to try to make a fool out of me that I would have my money back in three days at the latest. I told him that would be too late and it had better be in there tomorrow and he said it will be returned. I told him if it wasn't that I would be calling back.

    Missouri's Attorney General will be hearing about this and very soon. Do not trust Probioslim. Buy it at GNC if you really want it.

    Bottom Line: No, I would not recommend this to a friend

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  • 18 out 20 people found this review helpful

    Rip off

    • Mohrsville PA,
    • Jul 6, 2015
    • Verified Reviewer

    This product is a rip off! Tried to cancel and they offer you the pills at a cheaper price. Won't let you return unused unopened merchandise for a refund. Bad customer service. Better products on the market. Very overpriced.

    Bottom Line: No, I would not recommend this to a friend

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  • 17 out 19 people found this review helpful

    They kept my product and my money!

    Please be aware of these types of offers about the two week trial. You don't easily see the high cost of $78.00 until it's too late. You call company and they say "Oh well, too bad, time is up for returning product."​

    Would not recommend this and warning everyone that you will be parted from your money.

    Bottom Line: No, I would not recommend this to a friend

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  • 13 out 16 people found this review helpful

    Don't troll the internet late at night.

    • Salinas, CA,
    • Jul 17, 2015
    • Verified Reviewer

    I was taken in once before years ago, and forgot about the experience until I received a bottle of product in the mail and a bill for $74.98 for something I did not order and do not want. Calling the customer service number got me into a flame war about the deception. Supposedly I will get a refund (but not for shipping) for this bottle of pills. Even if the product was wonderful, which I certainly haven't ascertained, I would want nothing to do with a company that tricks people into spending money. So I hope I remember next time I contemplate sending away for a "free, no-risk trial." There is no free lunch, and we'd be better off remembering that.

    Bottom Line: No, I would not recommend this to a friend

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  • 16 out 16 people found this review helpful

    I haven't lost anymore weight than I was already losing

    • Hamilton, Ohio,
    • Jul 21, 2015
    • Verified Reviewer

    Don't order the trial. They have tried to charge my credit card five times in two weeks. Scammers.

    Bottom Line: No, I would not recommend this to a friend

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  • 16 out 16 people found this review helpful


    • Hatboro, PA,
    • Aug 16, 2015
    • Verified Reviewer

    Got it from GMC. I tried it and it did nothing. I haven't lost anything and I have been exercising. I won't purchase this again -- very expensive and not worth it at all.

    Bottom Line: No, I would not recommend this to a friend

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  • 12 out 14 people found this review helpful

    Poor product and sneaky pricing

    I ordered a sample of this product o line and was billed $4.95. I called their number and told them that I did not want any more.

    Twelve days later I was charged $94.96 on my credit card. I tried to call the number on my statement and was put on hold for at least 15 minutes each time. I left a call back number, but never received one.

    I finally called again and after 20 minutes got a real (?) person. This man simply kept repeating that the information was on the website that I had 14 days to cancel and they had no record of my cancellation call. Finally he agreed to credit my account for 30% of the charge. I told him that it was no acceptable. He finally said that they would credit my account for 50% of the charge, I did not want to spend any more time, so I accepted this offer.

    This is the second time I have had this happen when ordering samples. Be sure to read the entire agreement before giving them your credit card.

    Bottom Line: No, I would not recommend this to a friend

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  • 22 out 22 people found this review helpful

    Scam (At the Highest level)

    Several months ago I ordered what was advertised as a "free" shipment of the Probioslim product.

    I called within the specified guideline to cancel all future orders and was advised that no future orders would be issued. Approximately 7-10 days later my credit card was billed and I immediately followed up as well.

    I was then advised that there was no record of my call and I had been billed for future shipments and my order was on the way. I further explained that I was no longer interested and was advised to return the shipment at my expense once it was received and my card would be fully credited.

    It was clearly evident that this was a fraudulent company that I was involved with so I contacted the bank and was advised to close the account of card in order to hinder any future charges. Once the follow up order arrived, I immediately went the Post Office and had the item shipped back to the warehouse. (This was approximately 06/02/2015).

    I was issued a receipt regarding the tracking of the item but within another week or so my account was credited and I have since discarded the receipt. Now (3) three months later the company is attempting to scam me again.

    Unfortunately the USPS was unable to provide me with a duplicate copy of the receipt but they did agree to accept a formal complaint from me and file a complaint regarding mail fraud. I was advised that a USPS Inspector would be assigned my complaint and hopefully the company would be issued formal charges.

    I am also scheduled to meet with the local (BBB) Better Business Bureau on next week to discuss a formal complaint regarding the company's attempts at distribution in the Memphis venue as well.

    I have learned my lesson and employ anyone reading this to never participate in these shipping scams again!

    Bottom Line: No, I would not recommend this to a friend

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    • Sep 18, 2015

      Company Response from ProbioSlim, LLC

      Hi there,

      I am sorry to hear about your experience. Have you tried reach out to our customer care center? They will be more than glad to help you out with his.


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