In-stock products are normally shipped within 2-7 business days after you place your order, depending upon the destination. We endeavour to deliver your order as quickly as possible. In order to produce our shampoo, and harness the cleansing power of such a high carbon dioxide concentration of 8,000 PPM, we are required to use an aerosol can. Due to the legislation around this packaging type, this is classified as 'dangerous goods' for air freight. And therefore it can only be shipped by land transport. For this reason, delivery times may vary by season and can be longer.