It would be an interesting factoid to know how many thousands or even millions of dollars per year are spent on facial waxing, body waxing, and other means of hair removal. Given that there's home remedies, DIY kits that are sold and cosmetic stores and supermarkets, and professional salon waxing, its probably a lot more than someone would estimate.
People use waxing as a way of hair removal to get the look of completely clean and hairless skin and to avoid stubble. So if you didn't know, that's why girls don't just shave their eyebrows and lips like guys do. This is because waxing completely removes the hair from its follicle where shaving just cuts it short.
It is important with any waxing to always make sure to melt the wax completely and that it is completely adhered to each hair so when you pull the wax off, it takes off every single hair in the applied area. This can be done by simply rubbing the wax strip on the applied area for a while until you feel it get warm. It is also always important to pull the wax off in the opposite direction of hair growth.
I've tried Sally Hansen, other brands from Ulta including the $3 vanilla scented stocking stuffer type brand, and Nair. I used Sally Hansen for the longest time just because I liked the nail polish that company makes and the wax strips got the job done sufficiently. But then, one day I decided to try Nair brand wax strips and they actually work a lot better in my opinion. The Sally Hansen brand strips are clear colored wax on plastic sheets, where as the Nair brand strips are a pale green colored wax on a sort of paper that I believe to be more suited for the wax. I like the fact that the Nair brand strips have colored wax and opaque backing which makes it a lot easier to go back and look at all the hair you actually picked up. I also think the Nair strips' wax is a lot easier to melt but that might just be total false speculation.
... All of the above are tricks and tips of information taken from the instructions on many different types of hair removal kits I've used over time (and the expertise of my mother). Many of which are usually looked over by most when trying these kits at home.