Hair grows, on average about 1.25 cm a month, so that's less than .75 a week. My bio hair is pretty sparse, and when it's time to do a removal after even 2 weeks the tape does not come off easily.
I have a client who is young, and Hi bio hair is very thick along the back and sides of where the system is attached, he goes for about a week (very active lifestyle), and it's also hard to take the tape off.
These adhesives really want to stick!