Complete Probiotics is a probiotic supplement built to support gut health and digestion by delivering a sturdy mix of helpful bacteria. Delayed release capsules help these bacteria survive stomach acid, and fructooligosaccharides act as prebiotics to encourage their growth. From Dr Mercola, a brand with longstanding commitment to purity and quality since 1997, this formula is made to high standards.

Available Sizes & Variants:

90 capsules – convenient monthly supply for daily use

Benefits & Features:

• Supports daily digestive comfort and helps reduce bloating after meals across the day.
• Promotes gut balance with a broad blend of probiotics that helps you stay resilient during busy, stressful days.
• The multi strain formula helps support immune function and the gut barrier, with digestive probiotics that survive stomach acid to reach the intestines and promote a healthier microbiome over time.
• Delayed release capsules maximise probiotic survival through the stomach and deliver live cultures to the gut.
• Fructooligosaccharides help probiotic growth.

From its inception, Complete Probiotics has been built on Dr Mercola’s commitment to quality and transparency. The formula relies on ten clinically studied strains chosen for complementary action, and the company uses precision blending to guarantee each capsule delivers a consistent mix. The capsules are designed to be shelf stable and easy to take, with a delayed release design that helps more bacteria reach the gut. Across the brand, rigorous manufacturing and in-house testing support dependable, everyday digestive probiotics for gut health. These probiotics for gut health are backed by a long track record of quality.

Microcrystalline Cellulose, Delayed Release Capsule (Hydroxypropyl Methylcellulose, Gellan Gum), Fructooligosaccharides, Ascorbyl Palmitate, Silicon Dioxide.

• GTIN: 813006013178
• Manufacturer: Dr Mercola
• Categories: Best SellersGut Health SupplementsNew ArrivalsProbiotic Tablets, Capsules & Liquids
• 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.

Adults should take one capsule daily as a dietary supplement, ideally in the morning. Take 1 capsule with each meal\, up to three times daily or as recommended by your health professional. Consult a health professional for use beyond four weeks.

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

The Active Ingredient Is: Probiotics (Multi-strain Blend)

Probiotics are living microorganisms that help maintain normal gut microbial balance and digestive function. This formula uses a potent multi-strain capsule with delayed-release technology to help these bacteria reach the intestines where they can exert their activity.

This product contains a broad probiotic blend including ten clinically studied strains, designed to support gut health and daily digestive comfort. The capsule format and delivery system are chosen to maximise stability and intestinal survival.

What Does Probiotics Do?

Probiotics participate in maintaining gut microbiome balance and may support immune function, as recognised in EFSA and NHS-aligned guidance. Scientific research suggests such blends can aid in digestion and support a healthy gut barrier.

Dr. Hao of Harvard University found that multi-strain probiotic blends modulate immune responses and may influence respiratory infection outcomes in healthy adults.

This product is not intended to diagnose, treat, cure, or prevent any disease.

Dr. Mercola has lined up Welzo's stringent partner criteria, delivering a proven manufacturer track record to our probiotic range. Since 1997 the brand has built broad recognition for quality in natural health, underpinned by GMP-compliant manufacturing and clinician formulation practices that emphasise purity and potency.

This label's product quality is supported by pharmaceutical-grade purity standards and NSF third-party certification, with independent potency verification and patented delayed-release capsules designed to maximise stability. Their commitment to top-tier probiotic strains and careful blending helps ensure accurate dosages per capsule while delivering a shelf-stable formulation that doesn't need refrigeration.

Our recommendation rests on a solid brand evaluation process carried out by our medical team and reinforced by our quality certification process. We decided on Dr. Mercola for Complete Probiotics because of their longstanding reputation, stringent quality controls, and clear product focus, making them an excellent partner for Welzo customers seeking reliable gut-health support.