I've been getting my hair highlighted for twelve years now (wow, I dread to think how much money has been spent on bleach and foils), yet I've never used a silver/purple shampoo. I never suffered from particular brassiness or fading - so it was just something I never really considered I needed. But, I saw these on the shelf next to the Rosé Super Cool Colour that time I died my hair pink, and picked them up, incase I needed a little help restoring my hair back to blonde after the pink had washed out.
Blonder for longer
I'm now a purple shampoo convert - how did I manage 12 years of blonde maintenance without it? I've been using the Bleach London Silver Shampoo and Conditioner about once in every three washes, and my blonde is noticeably brighter after each use. It's not just for ashy tones either - my hair is a more golden blonde, and the silver shampoo gets rid of brassy yellowness and keeps it looking fresh.
Not the easiest to use
The shampoo is really runny, making it easy to waste as it drips in between your fingers, and somehow manages to get dark purple splashes all down the shower tiles (it comes off easily though, so no dramas). The conditioner, on the other hand, is really thick, almost like a putty, and is quite difficult to get out of the bottle. It definitely needs leaving upside down, but the shape of the bottle isn't made to balance on it's lid. I stick mine upside down on the wall, using one of those tile suckers (like this, but not as ugly)
Finish with a mask
The conditioner isn't the most nourishing in the world, but then it doesn't claim to be. It's purpose is to preserve colour, it's not a deeply intensive conditioner for damaged hair. It does the job of a standard conditioner - I can get my Wet Brush through my hair easily enough afterwards - it just doesn't leave my hair feeling soft or silky. So, I'll either use a mask or a leave in conditioner to add a bit more nourishment. The John Frieda Beach Blonde Kelp Help is my current treatment of choice.
Fellow blondies - do you use a silver/purple shampoo?