@alice I've only gotten professional bleaching so I can't speak to discounter products, but ultimately, hydrogen peroxide is aggressive no matter where it's from. Don't know how much quality matters.I'd recommend dilution down as far as possible. I get 6% bleach for a very dark brown natural color to light yellow for dyeing over. If you're naturally blonde, like, 2-3% or something might be all you need.Also, what's your hair care? That's the biggest thing for nice, dyed hair in my experience
