You can use ageLOC Boost every day, whereas you should use ageLOC Galvanic Spa two to three times a week. The main difference between the two devices is they use a different type of current. ageLOC Boost uses exclusive variable pulse microcurrents to optimize skin, which helps reveal a more youthful complexion. ageLOC Galvanic Spa uses direct microcurrents to deliver treatment products to visibly improve aged skin.