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Adult Probiotic – 25 Billion


High-strength daily probiotic for adults
Contains the most comprehensively-studied probiotics consortium in the world
Supported by the widest range of clinical trials of any probiotics blend
25 billion Lab4 probiotics per capsule with FOS
Proven to survive stomach and bile acids
Guaranteed potency to end of shelf-life

Available in capsulesSuitable for AdultsSuitable for VegetariansCertified KosherGluten-free probiotics No dairy ingredientsGenetically modified organisms (GMO) free probiotics from ProVen ProbioticsNo refrigeration required - ProVen Probiotics

UK’s #1 Probiotic manufacturer
Now available in the US.

The importance of our microbiome

Our digestive system (gut) is central to supporting our health – it contains more than 70% of the body’s immune system and 10 times more bacteria than we have cells in our whole body, known as the gut microbiome.†

The gut microbiome is a highly complex and dynamic community of microorganisms, most of which are bacteria. More than 1,000 different species/strains of bacteria have been identified with enough frequency to be considered a ‘normal’ part of the human microbiota.†

The overall relationship of the microbiome to our body is both favorable and beneficial, supporting the function of many aspects of physiology, including immune and digestive function. There are, however, some species and strains that may have negative attributes under certain circumstances, potentially producing toxins and acting as opportunistic pathogens, and one of the primary functions of our favorable bacteria is to help exclude and/or inhibit these pathogenic species from causing harm.†

Maintaining a favorable balance of all species of bacteria is key to supporting the health of the microbiome and helping to prevent the overgrowth of the potentially pathogenic bacteria strains. An imbalance of bacteria is known as dysbiosis and can lead to symptoms such as bloating, gas, digestive discomfort, diarrhea and constipation.†

The stresses of our modern lifestyles have been shown to have an impact on a balanced microbiome – including a diet high in sugar and processed food, excessive alcohol intake, lack of or too much exercise, illness and infections (especially food poisoning), and medications (particularly antibiotics).†

Conversely, probiotics (both from foods and supplements) have been shown to help support the balance of the favorable strains – particularly Lactobacillus and Bifidobacterium, which are susceptible to the effects of the above stressors.†

Research-backed probiotics for support

ProVen Probiotics Adult Probiotic – 25 Billion is a high-strength probiotic supplement for everyday use for adults aged 16 and over.
Supported by a unique body of clinical research, the Lab4 blend of probiotics found in the ProVen Adult Probiotic – 25 Billion has the widest range of clinically-proven benefits of any probiotics consortium in the world.*

This probiotic blend has been found to have benefits including improving immune system function and reducing symptoms of intestinal discomfort (often referred to as irritable bowel syndrome (IBS)), including bloating and irregular bowel habits.

ProVen Adult Probiotic – 25 BillionΒ has also been shown in clinical research to reduce the microbiome disturbance caused by antibiotics and to have a positive impact on the intestinal symptoms experienced by recreational athletes.*

Key features

High-strength everyday probiotics for adults age 16+
Contains the extensively researched Lab4 probiotics consortium
Also contains FOS (fructooligosaccharides) – prebiotic fibre to feed the probiotic bacteria
One capsule per day
Does not require refrigeration

*Hepburn et al 2013, Beneficial Microbes 4(4)
*Williams et al 2008, Alimentary Pharmacology and Therapeutics 29
*Madden et al 2005, International Immunopharmacology 5(6)
*Pugh et al 2019, European Journal of Applied Physiology 119

Nutritional Info


Serving size: One capsule per day
Servings per container: 30



OTHER INGREDIENTS: Vegetarian Capsule Shell (Hydroxypropyl Methylcellulose), Microcrystalline Cellulose, Silicon Dioxide, Magnesium Stearate.


Vegetarian. Gluten free. Lactose free. Kosher.


Suggested Use


As a dietary supplement, take one capsule per day with food.


Store in a cool, dry place.


Consult your physician prior to use if you are pregnant, nursing, taking medication or have a medical condition.
Do not exceed the recommended intake.


Weight 34 g
Dimensions 73 × 28 × 127 mm
Bacteria Count

25 Billion

Dietary Requirements

Lactose free, Vegetarian, Gluten free, GMO-free, Kosher

Subscription Product

Subscription Product


3 Packs every 3 months (5% Off), 6 Packs every 6 months (10% Off), One off purchase

31 reviews for Adult Probiotic – 25 Billion


97 %


97 %


97 %

Reviewed by 27 customer(s)

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    swan BDAJCW lau

    Very good supplement which help my husband improve about his digestive system.

    September 26, 2021

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    swan BDAJCW lau

    my husband taking this supplement and he loves it, sometimes when he feeling not well with his stomach, he will take 2 pills of it and he will get well very soon.

    February 2, 2021

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    Marion Gossman

    I love these probiotics with vitamins. I’ve been using them for a couple of years and really feel the difference.

    September 14, 2020

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    Liesl Gamba

    On occasion I suffer with bad gut health, but I definitely felt a difference after using these. I only bought 1 months supply and will be buying some more.

    July 21, 2020

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    Judy Catterall

    Having had bowel cancer in the past I find these probiotics very helpful.

    July 16, 2020

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    My husband & I have used this product for more than 2 years. We have rarely had a cold or other infection since so believe it has strengthened our immune systems,

    April 20, 2020

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    Michael Nesbitt

    Excellent. Very good response.

    October 15, 2019

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    Gabor Balog

    because that is how I feel so

    October 2, 2019

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    Andrew Shaw

    These are not quite as life enhancing as I recall

    September 9, 2019

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    Marcus Richardson

    A good priced product – vey quick delivery.

    May 29, 2019

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