Milk Thistle extract is a liver support supplement that helps maintain liver function and supports glutathione stores, so you can feel more resilient day to day.

Available Sizes & Variants:

100 capsules of milk thistle - a convenient daily dose for ongoing liver support.

Benefits & Features:

• Supports liver function and helps keep detox processes healthy.
• Active silymarin components help protect liver cells and support antioxidant defences.
• Designed to be gentle on the stomach while delivering steady daily support.
• Jarrow Formulas' quality controls ensure non-GMO ingredients and allergen safety.
• Active silymarin helps support glutathione levels and membrane stability, giving the liver extra resilience against everyday toxins and oxidative stress while contributing to a balanced antioxidant system.

Jarrow Formulas is known for science-led, quality focused supplements. This milk thistle uses a 30 to 1 concentrate of milk thistle seeds, standardised to around 80 per cent total flavonoids with silymarin components such as silybinins and isosilybinins. The formula supports liver function and glutathione, helping protect against toxins. The product is non-GMO and produced under GMP standards, earning trust from herbal supplements fans.

(other) Cellulose, magnesium stearate (vegetable source) and silicon dioxide. Capsule consists of hydroxypropylmethylcellulose.

• GTIN: 790011140030
• Manufacturer: Jarrow Formulas
• Categories: Detox and Cleansing Supplements SupplementsHerbal Remedies & Botanical SupplementsJarrow FormulasLiver Cleanse SupplementsMilk Thistle SupplementsNew Arrivals
• 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.

Take 1 to 3 capsules daily, or as advised by your healthcare professional.

Consume 1 capsule daily or follow the instructions of your certified healthcare provider when taking the supplement.

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

The Active Ingredient Is: Milk Thistle seed extract (standardised to 80% flavonoids)

Milk Thistle seed extract is a herbal ingredient rich in flavonoids, especially silymarin, sourced from milk thistle seeds for supporting normal liver function and antioxidant capacity.

This form concentrates the active constituents to help sustain liver-related antioxidant activity and provide protective cellular support through its flavonoid profile.

What Does Milk Thistle Seed Extract Do?

Milk Thistle seed extract helps support liver health by boosting glutathione levels and helping to stabilise cell membranes, which can help protect liver cells from oxidative stress.

Additionally, its components are involved in reducing inflammation and limiting damage from toxins, contributing to normal liver function and antioxidant defence systems.

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

Jarrow Formulas stands out as our chosen partner for Milk Thistle because this brand consistently shows a commitment to quality, transparency, and scientific rigour. This brand against alternatives highlights a manufacturer with a long-standing reputation for manufacturing excellence, backed by independent quality verification such as ConsumerLab.com assessments that confirm label claims for silymarin content and flavonoids. Their dedication to using non-GMO ingredients and avoiding common allergens aligns with Welzo’s standards for purity and safety.

Our expert team evaluated Jarrow Formulas against peers by prioritising established quality systems and third‑party validation. This brand's GMP-aligned production and verified contaminant testing underpin our confidence in reliability and consistency. For more on how we ensure product integrity, our team reviews are available at our expert team of doctors, nurses, and nutritionists and details of our rigorous testing protocols.

This combination makes Jarrow Formulas a natural fit for Milk Thistle, supporting liver health as indicated by the product formulation, while meeting Welzo’s criteria for quality, safety, and supplier trust. This brand and product were chosen to align with our strict vetting process and expert evaluation.