In order to lower our carbon footprint we drop ship whenever possible from the manufacturer. This is usually the case with pure encapsulations and golden flower brands. We utilize USPS (the good old US Postal Service) when shipping from our physical pharmacy. Currently, use use flat rate shipping boxes to keep costs low. Typically packages are received within 1-5 business days from your order. Overnight options are used when supplements need to remain cool to be viable or stay in tact. You must choose this option if prompted to do so at checkout. You may upgrade to overnight if you wish to receive your package quicker than normal.