I would like to know the longest you have made a hair system last, and the reasons why you throw one away (shedding, base material, hair quality fades etc.)

also do you remove the hairpiece to wash/shampoo it.

I'm not sure if this is standard, I just started doing it and noticed I hardly get any shedding if I dip the system into a basin on hot water + shampoo, when I rubbed shampoo into it while in the shower (like what you would do with natural hair) I got a lot of breakage/shedding.