Swarzkopf Live semi-permanent

[CatWizard]

I'm very tempted to dye my hair blue or maybe purple
Has anyone used it on quite thick, curly hair?
Also any tips would be appreciated as I've never dyed my hair before

I'd use two packs of dye as one probably won't give enough cover to your thick curly hair.

My hair isn't very long, about shoulder length when I straighten it. Will I still need two packs?
Does it make your hair brittle or frizzy and does it wash out completely?