You can now refill your Salt of the Earth amber & sandalwood hand wash with this clever concentrate refill. Simply fill your empty existing Salt of the Earth foaming hand wash bottle with 50% concentrate (there\'s a helpful marker on the label) and the rest with tap water. 500ml of concentrate makes 1 litre of finished hand wash 75% less plastic compared to x4 hand wash bottles. Certified COSMOS Natural - 100% Natural Ingredients Quick to rinse, so you use less water Preservative free PH balanced Approved by the Vegetarian and Vegan Societies