Milk frog shedding excessively?

[strade]

My Amazon milk frog, Eruka, is one and a half years old. She's reached her full size of slightly over 4 inches, and has previously shed every couple weeks.
For some reason she is now shedding around two times a week. I haven't noticed anything wrong with her; her colours and skin is perfectly fine and there's been no change in her behaviour.
I've looked online but can;t seem to find anything- is this a problem? Does this excessive shedding mean something is wrong?