Organic Spirulina (Formerly Spiru-Blue) 120 Tablets - Dr Mercola

Organic Spirulina Powder (Phycocyanin, Chlorophyll, Carotenoids), Silicon Dioxide.

United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched 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 14 days in the same original and unopened packaging. Subject to T&C's.

Welzo is a UK-based health platform. Orders ship from the UK.

For optimal health, adults should consume four (4) tablets of this dietary supplement on a daily basis.

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

1. Boosts Immune System: Organic spirulina is rich in nutrients and antioxidants that can help boost the immune system. This can help prevent illness and infections, promoting overall better health and well-being.
2. Detoxifies the Body: Spirulina has been shown to have detoxifying effects on the body, helping to remove toxins and heavy metals. This can improve overall organ function and contribute to better overall health.

The Active Ingredient Is: Spirulina (Arthrospira platensis) - Organic Spirulina Powder

Spirulina is a blue-green algae recognised as a nutrient-dense supplement ingredient. This organic spirulina powder delivers a broad spectrum of nutrients and phytonutrients, including spirulina-derived pigments and micronutrients, aligned with vegan and vegetarian product standards.

The product is produced under GMP guidelines and is certified organic, ensuring natural sourcing and the absence of synthetic additives. It's free from common allergens and grown using organic methods for clean nutrient density.

What Does Spirulina Do?

Spirulina offers a range of nutrients that support daily wellness and a broad nutritional profile, including proteins, vitamins, minerals and algae-derived phytonutrients such as phycocyanin, chlorophyll and carotenoids.

Research-backed notes show these components are linked to a rich antioxidant pigment matrix and support from a nutrient-dense algae source, with the product undergoing third‑party testing for contaminants as part of quality assurance.

This supplement isn't meant to diagnose, treat, cure, or prevent any disease.

Dr Mercola brings a science‑led, quality‑first approach to our pick of Organic Spirulina. This brand’s commitment to purity and transparency is clear in its GMP‑driven manufacturing process and its routine laboratory testing to verify freedom from heavy metals, microcystin toxins, and chemical residues, which matches our standards for safe, consistent supplements. The product also bears USDA Organic certification, highlighting natural sourcing and ethical practices that we value when picking daily wellness aids.

This brand is known for its organic spirulina grown without synthetic pesticides or fertilisers, emphasising clean cultivation and nutrient density. Our assessment highlights Dr Mercola’s reputation for rigorous quality controls, clear sourcing information, and ongoing compliance with industry norms, all of which support trust and safety for consumers. The result is a solid match for a spirulina supplement that prioritises purity, potency, and traceability.

Welzo picked Dr Mercola Organic Spirulina because our expert team of doctors, nurses, and nutritionists trust their science‑driven approach and because the brand operates under the standards we enforce, ensuring high quality across sourcing, production and testing.