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