SUPER!
My light brown UGGs sadly became ruined from the rainy weather we've been having, they turned a funny shade of dark brown around the toes. I thought I'd give this a go, skeptical over whether my beloved boots would ever look the same again.
The instructions with the kit aren't that clear but a bit of googling soon set me straight.
Many nervous hours later...voila! Lovely clean light brown UGGs once more. HOORAY!