Sainsbury's SO Organic Mayonnaise

Sainsbury's SO Organic Mayonnaise is a house-brand condiment produced for J Sainsbury plc, one of the United Kingdom's oldest and largest supermarket chains. The 'SO Organic' range focuses on products that are certified organic, often sourced and manufactured within the UK to meet high quality and sustainability standards for the British market.

As a private-label product, the manufacturing is typically handled by contracted third-party food producers located across the UK and Europe, though it is primarily packaged for sale within the British Isles. The brand ownership remains entirely with Sainsbury's, ensuring that the supply chain adheres to the retailer's specific organic guidelines.