Health & Medical Beauty & Style How to Lighten With a Peroxide Shampoo About Health & Medical Tuesday, May/28/2024 Tuesday, May/28/2024 245 104 Share 0 1). Pour the hydrogen peroxide solution into the spray bottle.2). Spray peroxide on your hair generously.3). Brush it through with a comb.4). Allow your hair to dry.5). Repeat if necessary.