IA products will be good for 24 months after opening.
Each jar will last for varying lengths of time depending on usage.
IA Complete Skin Care - most often lasts someone 4-6 months using on the face, hands and feet, twice a day, every day. If used on the entire body daily, it can be used within a month for raving fans. Used just as a face cream or hand cream, the large size, 8 ounces, could last well over 6 months. For the 4oz, 2oz and 0.5oz sizes, please use above approximations.
IA Baby Soft Scrub - most often lasts 4-6 months. Once again, it depends how you use it. It can last one month, or up to 12 months with occasional use.
IA Gold - The IA Gold product is meant to be used on the face, eyes, neck and tops of the hands, where the aging is most evident. The big jar (6.7oz) will typically last 6-12 months. The medium (1.7oz) jar will last 8-16 weeks and the small (0.5oz) jar will last about 15-30 days.
IA Skin Polish Microdermabrasion - The Microdermabrasion Cream is meant to be used about once every 3-7 days. Some people enjoy using it every day, and this is allowed! Depending on usage, this will affect the time until you get to the bottom and need more.