No Yellow Mask is formulated with a special violet pigment
that neutralizes undesired yellow reflections. Leaves hair soft, shiny
and silky. The action of the violet pigment is not invasive but rather
it has very high cosmetic action without any side effects, even if the
shampoo is frequently used. Its acid pH seals the cuticle and creates
protective violet film on the hair that reflects and rejects yellow
reflection. It's perfect for conditioning action.