Goccia Nera Caviar Therapy, 500 ml, Hair Masks for Women, The Goccia Nera Caviar Therapy hair mask is an essential step in your hair care ritual. Give it a moment to regenerate and it will repay you with vitality and beauty. Characteristics: regenerates the hair along its entire length strengthens the hair fibre improves the elasticity of hair fibres How to use: Leave to act as instructed on the packaging, then rinse thoroughly.