How to take care of human hair extensions?

I just bought these hair extensions from the website below:





http://www.lace-front-wig.com/hairextens鈥?/a>





What is the best way to take care of these extensions? How often should I wash them? Should I apply leave-in conditioner? When I use a heat styling product, should I apply a heat protectant? Please any anwsers would be appreciated!How to take care of human hair extensions?
ask where u bought them

Kelbro Corporation