A the time, it was the only product I could find on the local market. Papaya is mentioned, because it is some combination "bromelain+papain".
I like to eat pineapple, but I neither wife nor kids eat it too and for myself alone, the fruit is too big for me to eat it fast enough before it gets moulded.
Fortunately enough, my wife does not seem to have any issues with swallowing my cum :) .