Foil, cotton wool, paper and other aids for professionals and home use

Always use the foil twice as long as the processed hair. After applying the product, fold it, preferably twice. Use the comb-tip to close the foil from the sides as well. You continue in rows to the top of your head. Do not apply too much decolorizing solution to the foil when highlighting. Due to the thickeners, which contain decolorizing powder, the solution tends to increase in volume. It fills the foil and flows into the other hair. This will cause unsightly blond spots.