Brightens up colours, smoothes fibres and softens laundry. Eliminates detergent residue and neutralises pH value of fabrics thanks to the natural citric acid. No fragrance (no essential oils). 100% biodegradable. Suitable for all types of fabrics and washing programmes. Add to the final rinsing water. Sonett Laundry Rinse helps to rinse out detergent residue and neutralises the rinsing water (important for allergy-prone people). Sonett Laundry Rinse - 1L is part of the range of Sonett natural laundry products. Keep your laundry looking and smelling fresh and new with Sonett\'s collection of laundry essentials, from laundry liquids to stain & odour removers. Explore the full range of Sonett products, including organic hand soaps and Sonett dishwashing products, available from Big Green Smile.