Redken Extreme Length, 250 ml, Hair Masks for Women, The Redken Extreme Length 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: strengthens the hair fibre regenerates the hair along its entire length improves the elasticity of hair fibres restores hair structure restores hair’s natural, healthy appearance helps stimulate hair growth strengthens hair tips takes care of the lengths of weakened hair How to use: Wash with shampoo, then apply to damp hair. Leave to act as instructed on the packaging, then rinse thoroughly.