Question: what is the best shampoo to lighten hair?
Answer: John Frieda Sheer Blonde Go Blonder Shampoo. ... 
Purple Shampoo for Blonde Hair: Blonde Shampoo Eliminates Brassy Yellow Tones. ... 
Manzanilla Grisi Shampoo | Lightening Shampoo with Chamomile Extract. ... 
John Frieda Brilliant Brunette Visibly Brighter Subtle Lightening Shampoo.