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Introduction to Kosbiotic
The brand
Fondée en 2021 par Édouard Fabre, Kosbiotic est le fruit de trois années de recherches en formulation.
The motto? To make dietary supplements that are natural, effective, and scientifically validated, which act on the gut flora and contribute to consumers’ well-being.
At the same time, the brand emphasizes the respect for the environment, with vegan formulas and biodegradable packaging.
Products: the tribiotic concept
Today, the brand offers three product ranges based on patented probiotics, designed to meet specific needs :
- Digest Delight, which targets reducing digestive discomfort and improving natural defenses
- Calm My Mind, with active ingredients designed to promote relaxation and support better sleep
- Slim My Body, a supplement aimed at weight loss
These supplements are based on the tribiotic concept. More than a classic probiotic, this type of product combines three elements with complementary effects:
- probiotics, the core of the product, live bacteria with a beneficial impact on the gut microbiota
- prebiotics, soluble fibers that serve as “food” for intestinal bacteria
- postbiotics, which are metabolites produced by probiotics and that further support overall well-being
I had the opportunity to receive all three ranges to try them. However, I carried out my test only on Digest Delight, for two weeks. The other products were observed but not tested directly, to avoid any confusion about the effects.
👉 Découvrir les cures de Kosbiotic

My analysis of Kosbiotic based on 3 quality criteria
1. Nutritional value
Kosbiotic uses patented strains documented by clinical studies
In terms of nutritional value, Kosbiotic excels and, in my opinion, meets all the important criteria of a good probiotic.
In the Digest Delight supplement, which I relied on for this test, the strains include Lactobacillus plantarum LP01, Bifidobacterium breve BR03, and Lactobacillus rhamnosus GG, which have been widely studied for their positive effects on digestive discomfort related to irritable bowel syndrome.
The brand notably bases itself on the dosages from this clinical study, which found the following results for 70 people with digestive disorders: a 49.3% reduction in symptoms of irritable bowel syndrome after 14 days, a 56% reduction after 28 days, and a 38% reduction in the abdominal pain index after 28 days.
The other probiotic strains used in the two other products (Bifidobacterium lactis B420, Lactobacillus plantarum Lpc-37®) have also been scientifically studied at the same dosages, which is reassuring for the real effectiveness of the supplements.
Regarding Calm My Mind, the capsules deliver the same dosages as those tested in this study, which observed a 75% decrease in cortisol levels, a 6.4% decrease in perceived stress, and a +6.6% improvement in sleep-related recovery.
Finally, for the Slim My Body product, kosbiotic uses the dosages employed in this study, which showed a 4% reduction in abdominal fat mass and a 2.4% reduction in waist circumference.
A sufficient number of CFUs
Doses between 10 billion and 52.5 billion CFU (colony-forming units) are well above the minimal active doses, which ensures a sufficient quantity of live bacteria after storage, transport and until the end of the product’s shelf life. Despite the natural fragility of probiotics.
The addition of active ingredients, prebiotics, and postbiotics to increase effectiveness
All formulas contain fructo-oligosaccharides (prebiotics) and sodium butyrate (postbiotics) to nourish and support the action of the probiotics.
In addition, each product incorporates a few targeted active ingredients:
- Digest Delight: dandelion root powder and zinc
- Slim My Body: bladderwrack extract and iodine
- Calm My Mind: Eschscholzia extract, for relaxation
The formulation is well chosen
The brand uses gastro-resistant capsules, essential to allow the strains to survive stomach acidity and reach the intestine while remaining effective.
2. Product safety
Production is French, in an HACCP-accredited laboratory , which demonstrates a commitment to quality with respect to safety standards.
In addition to the strains that benefit from independent clinical studies, Kosbiotic does perform full tests on the formulas at production, at 6 months and at 24 months, notably to quantify strain viability and the number of strains remaining at different stages of the formula’s life.
These formulas are reassuring, non-GMO, without controversial additives, and suit most diets: vegan, gluten- and lactose-free.
3. The brand
Kosbiotic has a good reputation: 4.7/5 on 2,533 reviews on Trustpilot, with positive feedback about fast delivery and the effectiveness of the products, notably a reduction in bloating and gas.
The rating is just as favorable directly on their site, and the Instagram community has nearly 24,000 followers.
On the transparency front, the brand remains relatively discreet. There is little information about the founders, a deliberate choice so that communication focuses on the products.
I did, however, have access to the composition of their strong, multidisciplinary scientific team:
- R&D Manager
- Former research director at a major laboratory (external consultant)
- Scientific and Regulatory Affairs Manager
- Doctor in Microbiology
- Formulator / Pharmaceutical Formulation Engineer
- Pharmacist specializing in nutraceuticals
In my opinion, it could be helpful for Kosbiotic to make a little more information about these experts available to consumers, to better showcase their expertise.



My experience with Kosbiotic
First impression and packaging
I received my package at home very quickly, within 48 hours.
Kosbiotic stays true to its commitment: simple cardboard, kraft tape, without unnecessary plastic or paper. It’s understated, it fits the brand’s positioning, and it avoids having too much plastic and flyers that you always end up throwing away.
Regarding the product packaging itself, it is along the same lines: biodegradable cardboard from sustainably managed forests and plant-based inks.
Product presentation
Visually, the brand image is coherent. The boxes are attractive and the color coding makes it easy to distinguish each product.
The labels are clear and compliant, with all ingredients, dosage instructions, nutritional information, and precautions for use easily readable.
The benefits of each active ingredient are stated without promising miraculous effects, which I really appreciated.
Effects experienced
I won’t dwell on the effects experienced because they are specific to each person, depending on their condition, their gut microbiota, their lifestyle, and other personal factors.
Furthermore, a two-week course is not enough to fully evaluate effectiveness. I recommend forming your own opinion by testing a probiotic course for at least one month.
However, my initial feedback after this test aligns with customer reports, namely better digestive comfort and a less bloated belly, which is encouraging and consistent with the expected action of this type of product. I hope this review will be useful in your search for probiotics!
👉 Découvrir les cures de Kosbiotic
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