Purchased last year from Yodobashi.com. Used for about a week, then stopped using it because the licking habit went away. The main body has only been used a little and is mostly full. I don't know if it was thanks to this product that the habit stopped, or if something else caught their attention, but it's a safe product, so I was using it. Would anyone like to try it? I think it's a decent product. I will cut off the used part before shipping. Please refrain from purchasing if you are concerned about hygiene.