any dog shampoo that is blue or purple colored (will say for white dogs) should help. In a pinch, they make human stuff for blondes or silver-haired old ladies that should brighten up your pupper
I know what you mean about that "yellow fade"
. People are always commenting on how white Angel is, but I know the truth - she's very yellow compared to what she could be. If I bath her with some puppy shampoo, then slather her up with some of MY Biolage conditioner, let her air dry and brush her she absolutely sparkles (literally). However, miss priss hates the bath, so it only happens a handful of times in a year... :roll: