This comes in a 10.3 ounce tube and is tan in color. The shelf life of this mastic is approximately 1 year. You should store this in temperatures of 90º or lower. If your mastic is almost a year old, you may notice it separating a little bit. This is just the separating of the oils. Unfortunately, sometimes there are some tubes that get completely dried out, even before usage. This is just oil imbalance. It is not recommended that you use the mastic while it is dried out.