Moisturise hair while neutralising yellow to brighten grey and white hair and eliminate brassiness in highlighted and tinted hair with BioSilk Silver Lights Shampoo. An ideal cleansing solution for grey hair and blonde highlighted or bleached hair. Silk proteins contained in BioSilk Silver Lights Shampoo penetrate hair to condition and create incredible shine while UV filters protect from damaging UVA/UVB rays ensuring that your hair stays strong and healthy. Directions of use: Apply shampoo to damp hair and work into a rich lather. Rinse thoroughly. For additional brightening repeat and leave second lather on for 3-5 minutes. Use with BioSilk Silver Lights Conditioner.