The Classic Pack contains 25 grams of resin, which is about a 30 day supply for most people chewing daily.
Make it last longer: mastic can be chewed multiple times. When you are done with a session, save your piece in our reusable gum tin instead of tossing it, and chew it again later. Many customers double the life of a pack this way.
How fast you go through a pack depends on how many pieces you chew per session and how often you chew. If you are following the 90 day protocol, your delivery schedule is sized so you never run out.