Anytime you wanna know the ingredients to something, just do a Google with the product name and the word "ingredients" and you'll get hits.
I got a hit in the first five entries which led to: http://www.qvc.com/qic/qvcapp.aspx/v...-Powder-wBrush
First ingredient, talc. Includes, mica.
Basically, it's a water-resistant eyeshadow/eyebrow powder for your scalp. Seriously, that's how it looks, like eyebrow powder.
It maybe is resistant to rubbing off actual scalp skin, but I found it rubbed off VERY EASILY from hair strands, so application should target only the scalp (pull hair well out of the brush's way).
I only patch tested it. I bought it not for everyday use, but because hubby and I will be taking professional pics later this year or early next year (when it's cooler, basically) and I don't want any scalp show-through. I'm keeping it just for that purpose, not for daily use. Maybe if I had an important interview or very fancy dress-up affair I would consider it.
I would test any very dark waterproof eyeshadow in a matching hair shade (like a MAC or good quality one) and see how that works for you. Then you could use it on eyes and head.
Eye areas are sensitive, so those products are actually gentler to skin than items planned for other parts of face/head. If you have a stiff-angled brush, that should work (it should have softness and stiffness and be thin and angled enough to work on parts).
I suspect that what gave the hairdresser the idea was to use eyebrow powder on celebrity hairlines (since eyebrow powders come in colors to match hair types). The fact that she sells eyebrow powder, too, makes me think it's the same dang thing.
The brush is useful...but I suspect a similar brush can be found if one searches. Still, the brush and eyebrow powder combo is not outrageous at 28 bucks (just don't join the club), if you get it, just go get it from Soft Surroundings. Don't get suckered into automatic reorders.
But really, just experiment with a good quality hair-matching shade of eyebrow powder or eyeshadow.
Eyebrow powders are made to adhere to skin that has hair around it and to be relatively rubproof.Same deal.
I have brown-black hair (shoots off red-brown in sunlight, looks very dark indoors, see my avatar or fotki). The brunette was fine for my hair and did darken the paler scalp showthrough. But the rub-off factor was annoying. For someone who never touches their hair and doesn't sweat much, fine. And don't wear white sleeves that you might rub against hair/hairline.