PROYOU the amplifier conditioner foam 150 ml PROYOU the amplifier conditioner foam 150 ml is a light weight, volumizing foam that helps to create lift, definition and body to all hair types. It's unique formula contains natural ingredients such as proteins and vitamins, which help to nourish and protect the hair. The foam is also formulated to provide long lasting hold without leaving any residue or buildup. It is the perfect product for creating beautiful, long-lasting styles.