Bio D Toilet Cleaner is a concentrated toilet cleaner that removes soiling and limescale from porcelain and enamel surfaces with ease. This chlorine-free cleaning product is septic tank friendly and made using only the finest sustainable, naturally derived raw materials for a natural toilet cleaning solution. Powerful natural toilet cleaner and descaler Recycled and recyclable packaging - the bottle is HDPE 100% recyclable and the cap is PP 100% recyclable Suitable for septic tanks and cess pits No petrochemicals, phosphates, preservatives, enzymes or synthetic perfumes Hypoallergenic and suitable for sensitive skin Vegan Society Approved Readily biodegradable How to use Bio-D toilet cleaner: For best results, squirt Bio D toilet cleaner under the rim of the toilet bowl before bed. In the morning, use a toilet brush to remove the dissolved scale and flush. Bio-D Concentrated Toilet Cleaner is part of the Bio-D range of natural household cleaning products. All Bio-D cleaning products are kind to surfaces but tough on dirt, keeping your home clean the natural way with minimal environmental impact. Shop Bio-D multi-purpose cleaners in 5L and 20L bulk buy refill bottles to reduce plastic waste, or explore the full range of popular Bio-D products, including eco dishwashing products, natural laundry products, Bio-D hand wash and more, available from Big Green Smile.