gets gummy and rancid  before the 2 oz bottle is half used.
I bought the larger bottle since I felt the shelf life would be much longer. The bottle ingredients smelled very rancid and viscosity turned much thicker. The thick drops plugged up my ears and the residual mess was tough to clean  out of the ears.<br />Threw the remaining over half bottle in the trash. A waste of money. Stick with the half ounce bottle.  My opinion.
Rating: 2 stars