Wella Color Charm Liquifuse Technology saturates, penetrates, and fuses with the hair to deliver vibrant color that is exceptionally fade-resistant.  Permanent Liquid Hair color. Time-tested formulations ensure consistent, predictable results. Liquifuse Technology saturates, penetrates and fuses with the hair to deliver vibrant color that is exceptionally fade-resistant. New gentle floral fragrance for a more pleasurable coloring experience. Create long-lasting color with Wella Color Charm Permanent Liquid Hair color.