Color Melting softens sharp edges and erases that dreaded line of demarcation that can happen when you dip-dye your hair and use . Melting is a technique that blends the highlights with the base color of the hair so you don't have any harsh lines The new technique also creates an optical illusion and tricks the eye, making you believe the flowing colors could have occurred naturally, whether they transition from brown to bleach blonde, or Dark shadow to silver.