PRO-5 probiotic supplement offers a strong five‑strain blend to help keep your gut balanced and ease everyday digestive discomfort. Klaire Labs is renowned for science-led formulas and strict quality standards you can trust. Its careful manufacturing and stringent quality standards ensure potency stays reliable.

Available Sizes & Variants:

60 capsule bottle – convenient daily probiotic support for steady gut balance.

Benefits & Features:

• Supports daily gut balance with five strains.
• Relief from occasional diarrhoea and bloating helps you feel more comfortable.
• Chicory root inulin feeds friendly bacteria with a gentle prebiotic base, and many people pair it with magnesium glycinate for overall wellbeing.
• Made in GMP facilities with strict quality controls for probiotics.
• The combination of Lactobacillus rhamnosus and Bifidobacterium bifidum has been shown to optimise colonization resistance and promote a balanced gut microbiome, which supports digestive wellness and immune function.

Klaire Labs has long been trusted by clinicians for science-led, hypoallergenic formulas and strict quality controls. PRO-5 uses a precise five-strain blend and an inulin prebiotic base to support a healthy gut flora, while refrigeration helps preserve potency. The product is manufactured in GMP facilities with batch-to-batch testing for purity, giving professionals and customers confidence in consistency. This heritage of transparency and practitioner endorsed standards sets Klaire Labs apart in the integrative medicine space. For a well rounded routine, some customers pair probiotics with minerals like magnesium glycinate or botanicals such as berberine.

(other) Vegetarian capsule (hydroxypropyl methylcellulose, water) and L-leucine.

• GTIN: 828054749313
• Manufacturer: Klaire Labs
• Categories: Best SellersKlaire LabsNew ArrivalsPopular Supplement BrandsSubscribe & Save Products
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

For adults, it is recommended to take one capsule of the supplement daily with food, or as instructed by a healthcare professional. Children should follow the instructions given by a healthcare professional for their dosage. Individual needs may vary. Start by taking 2.5 g (one slightly rounded teaspoon) daily and gradually increase to maximally 6 g (3 teaspoons) per day\, or as directed by a healthcare practitioner.

Please consult the product packaging for accurate instructions on how to use the product.

1. Promotes heart health: The PRO-5 supplement from Klaire Labs contains probiotics that have been shown to lower cholesterol levels and reduce the risk of heart disease.
2. Enhances immune function: With a blend of five different probiotic strains, PRO-5 helps to strengthen the immune system and protect against infections and illnesses. This is especially beneficial for those with weakened immune systems or frequent colds and flu.

The Key Ingredient Is: Lactobacillus rhamnosus (Probiotic Strain)

Lactobacillus rhamnosus is a probiotic microbe used to help support digestive health and keep a balanced gut microbiota. This strain is one of several included to form a high-potency probiotic blend.

In this product the active strains are part of a multi-strain formulation using an inulin base as a carrier, with all components produced to standard quality for hypoallergenic, refrigerated storage where potency is preserved.

What Exactly Does Lactobacillus rhamnosus Do?

Dr Hill from the university showed that multi-strain probiotics including Lactobacillus species can support gut flora balance and digestive comfort. This lines up with EFSA-inspired expectations that such strains contribute to normal gut function and microbial balance.

The combination in this formula also includes other strains to support the same role of maintaining healthy intestinal flora and supporting digestive wellness.

Klaire Labs is our go-to supplier for PRO-5 because this brand sets the bar for facility excellence and steady quality. This brand runs in GMP-certified environments, backed by strict control of purity, potency and safety, which lines up with Welzo’s commitment to reliable supplements. Klaire Labs is highly regarded in professional circles for science-led formulations and transparent ingredient sourcing, a heritage that earns strong practitioner trust.

This brand versus alternatives highlights Klaire Labs' emphasis on hypoallergenic, well-characterised blends and third-party testing, supporting consistent batch quality. Their reputation in the integrative and functional medicine communities underlines their reliability for clinically oriented products, which resonates with Welzo's standards for safety and traceability. Our evaluation also recognised Klaire Labs' commitment to ethical sourcing and rigorous QA protocols, including comprehensive quality assurance processes and contaminant testing, which you can learn more about through our guidance on how we verify ingredient quality.

This brand's approach to PRO-5 demonstrates a precise fit for a high-potency probiotic with multiple well-established strains, making Klaire Labs a natural partner for Welzo. Our team reviews are supported by Welzo's healthcare professionals as part of our ongoing vetting process.