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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  • 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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  • 44 out 44 people found this review helpful

    Hidden Costs are a SCAM

    Beware of this "free trial" and the details of their autoship program.

    They offer a 14-day trial. But the 14 days starts the day you place the order, NOT the day the product arrives. By the time my product arrived, I had about 4 days to evaluate and decide whether to keep or cancel? That's ridiculous.

    But it gets better. They then charged me $79 and shipped out more product. I called and canceled, and returned the second shipment of product. But the $79 was never refunded.

    Turns out, that as part of their "14-day trial offer," they send you 30 days worth of product. So if you don't return THAT (the trial product), they charge you for that!

    Strangely, if you say you want to cancel your membership, they are suddenly able to cut 75% off the cost of the product! Which just makes their customers feel like suckers for having paid the higher price.

    In short, this company is terrible. They are sneaky, manipulative and dishonest. I hope they get sued and taken for everything.

    I didn't get a chance to formulate an opinion on the actual product. That's how bad the company was.

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

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  • 40 out 41 people found this review helpful

    Don't go there

    • Australia,
    • Oct 17, 2016
    • Verified Reviewer

    I ordered the free trial and have not received the trial, however, my credit card has been charged $108.33 and I have no product.

    I have tried to ring the number and it has a recording stating to phone back in office hours. This is the number for Australia.

    I have tried various times of the day to phone this company without success, they have no email address.

    I have reported the transaction to my bank as fraud.

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

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  • 35 out 36 people found this review helpful

    I feel ripped off by this Company

    • Perth, Western Australia,
    • Oct 1, 2016
    • Verified Reviewer

    This product didn't work for me and I have been unable to contact them to cancel. The result is that they are deducting over $100AUD from my account on a monthly basis and I don't know what to do other than report it as a scam and close my bank account.

    The contact number they provide for Australia has a recording saying phone back during office hours, that's despite whatever time you phone, day or night.

    I suggest you avoid this con and then you won't get ripped off like I did.

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

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  • 34 out 35 people found this review helpful

    It's not right

    • Lebanon, TN,
    • May 5, 2016
    • Verified Reviewer

    I saw the advertisement online and wanted to try it. I got it but it's not working. I'm not losing weight and I'm still gassy. I was charged a fee out of my account that I never authorized so I went back and looked at the ad and never saw that you can cancel anytime. I've called them, plus my bank. I'm calling my bank again in the morning and going to dispute the charges. I will also call the number again that I've found on the leaflet that came with the product and talk with them as well tomorrow. Do not buy this product.

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

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  • 33 out 43 people found this review helpful

    Rip Off

    I was taken in by the advertising and ordered a sample where I only paid shipping. Two weeks later I have a charge on by bank account for $74.98 for something I did not approve or order.

    I called their number and requested to have the charge removed. "Customer Service" offered to immediately refund 60% and let me keep the product. I said that I did not want the product. I was then told to repackage it upon receipt and take it to the post office to re-ship. Once they receive the product then and only then would they refund the charge.

    Your product must be pretty weak if you have to run a scam to sell it.

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

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  • 30 out 37 people found this review helpful

    Need Answers

    Asked for the 14 day trial bottle and paid shipping charges. However, I received two charges on 02/06/2016 and 02/08/2016 for $74.98 without my consent. And on top of it, I don't want the product. Credit card now has a balance of $150.00 Have NO WAY to contact the company. What does this tell you? May not be a legit business. No contact information on the bottle as well.

    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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  • 29 out 35 people found this review helpful

    I feel better.

    • Pueblo, CO,
    • Apr 7, 2016
    • Verified Reviewer

    I ordered this as a one time deal through Walmart and really love the results during the last two weeks. I feel better and lost seven pounds. I plan to continue to use because I'm tired of haing digestion issues and it has helped me tremendously. Thank you ProbioSlim.

    Bottom Line: Yes, I would recommend this to a friend

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  • 28 out 29 people found this review helpful

    Buyer beware

    • Oct 4, 2015
    • Verified Reviewer

    I ordered free sample plus ordered a 30-day bottle at the same time. It gives me such a bad tummy ache that I can't take it. I got the double whammy when they took 74.98 from my checking account. When I called them they say it's supposed to cause me stomach pain? Why would I want to put myself through more pain? Am I glutton for punishment? They did refund me 41.99 but refuse to refund the rest. Now the only pain I have is knowing that I ordered this product in the first place.

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

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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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