I have black eyebrows and pale skin, and light brown hair on the top of my head and dark brown underneath. I have to be verrrry careful with this stuff to avoid looking ridiculous, but in small quantities it is just perfect.
The gel is a dark brown and "sets" the eyebrows so you don't get random hairs sticking out - very important for me, my eyebrows always want to go curly. You don't need much gel unless you're going for the super dark eyebrow look, and I wouldn't recommend the dark shade unless you have dark hair and dark skin.
The powder I haven't used too much. It is used to fill in sparse patches in your brows but again I advise not using too much.
The packaging is very nice, a simple black compact that snaps shut. The price is very reasonable, only $3! Definitely worth the money. I would recommend to all, but make sure to check out swatches so you know what colour to get.
I only recently discovered this product and now wonder where it's been all my life. The gel is super helpful to shape my brows the way I want them to be, using my Real techniques brow brush to do so. The powder side of this kit helps to fill my brows in and leave them looking natural. I'd definitely recommend this product to people, i'd hate to think how messy my brows would be without this!