Safe acid powder. Nothing added. Home clean all rounder. Tackle limescale. Make your own descaler & shower clean. Fill clean repeat There are no dyes or harsh chemicals, all biodegradable ingredients, safe, effective & responsible formula. All our products are Vegan trademark approved & Cruelty Free - certified by Leaping Bunny We produce all our products in our factory in Northamptonshire. 1% of all orders donated to environmental causes via membership of 1% for the planet. Fill Refill is a certified B Corp and a registered living wage employer. How to use: Helps shift limescale in hard water. Descale the kettle: half fill kettle. boil. add 2 tsp. stand until cool. Descale the toilet: add warm water to bowl. add 2 tbsp. leave for 1 hr + flush. Closed loop washable, refillable, reusable post consumer recycled (PCR) tubs. That means you can get powders in Freepost returnable packaging. Send the empty tub(s) back to us for refill using the original transit packaging when you’re done