One bottle of Joint N-11 that is a 30-day supply costs $49.00, hence if ordered from the official website, you can save $30.00. 3 bottles of Joint N-11 that is a 90-day supply cost $117.00 i.e., $39.00 per bottle, thus saving a total of $120.00. 6 bottles of Joint N-11 that is 180-day supply are priced at $198.00 i.e., $33 per bottle along with a free shipping facility.