Crazy Color Vibrant Purple Shampoo - 250ml. Keep your Purple Prowess with this Vibrant Shampoo. Crazy Color® Vibrant Purple Shampoo is designed to maintain and care for vibrant hair colour, and is the perfect partner to Crazy Color semi-permanent hair colour cream. It works with any purple shade and has a Sulphate and Salt free formula, eliminating colour fade, dry hair and split ends.