Want to switch to natural liquid laundry detergent? Opt for our black soap detergent – White linen. Our black soap detergent is the essential element for your laundry room. Composed mainly of black soap with linseed and rapeseed oil, baking soda and percarbonate of soda, it guarantees white and clean laundry. Its natural smell is very pleasant. If you want your laundry to be scented, you can add a few drops of essential oil to the drawer of your washing machine. The advantages of our liquid detergent with black soap – White linen: - Removes stains and sanitizes clothes - Effectively cleans laundry - Brings whiteness - Respects the environment - Does not damage your washing machine - Handmade laundry detergent - Made in Le Perche 1 Liter = 15 to 20 washes. Dosage: Pour 1 to 3 capfuls into the drawer of your washing machine depending on the size of your machine and the condition of your laundry.