After shampooing, hold the bar under warm water and then work it between your hands to release the conditioner from its solid form. Then massage directly into wet hair, adding as much conditioner as you like. Leave in for a few minutes and then wash away to leave your hair shiny and smooth.
Let the bar dry between uses by storing it somewhere dry. You can put it in a travel tin but just be sure to let it dry out before you store it.
If this product gets in your eyes, wash with plenty of water and consult a doctor if necessary.