Overview

• Citric acid works by combining 120g of crystals with warm water and leaving it overnight to break down mineral deposits, with supermarket boxes priced at about £1.75 and sold in plastic-free packaging
• Harpic Power Plus claims to dissolve limescale in one minute while killing 99.9% of bacteria and is available at UK grocers like Sainsbury’s and Ocado for around £1.65
• Household bleach and standard disinfectants cannot remove limescale stains, as they only lighten their appearance rather than dissolving the underlying minerals
• Cleaning fans have shared dramatic before-and-after photos on the Mrs Hinch Cleaning Tips Facebook group to showcase Harpic’s fast-acting results
• Rising interest in sustainable home care and the challenges of hard water have driven consumers to seek both natural and high-performance cleaners for toilet maintenance