Is this actually Anastasia? Or a fake product

all my products is 100 % original cosmetics

Dirty blonde hair color?

Are you asking me if my hair is dirty blond? It's brown with blond highlights which has nothing to do with the pencil being broken and the turning mechanism not working properly.

Can this last for days ?

If I don't wipe it off with my make up remover it's good for 2, maybe even 3 days depending on how much you touch your face. Might need to touch up in places. Good staying power overall though.

Is this paraben and pthalate free?

Yes.What it is: An ultra-slim, retractable pencil for precise detailing and creating hair-like strokes. What it does: Brow Wiz's ultra-fine, retractable tip is perfect for spot-filling in areas where brow hair is sparse by mimicking fine, hair-like strokes. This pencil is idea for places where your arches may be bare or over-tweezed, and the smudge-proof formula stays put day for fresh, natural-looking brows. What it is formulated WITHOUT:- Parabens- Sulfates - Phthalates