Which of the following methods is effective for highlighting hair?

Balayage is an effective highlighting technique in hair coloring because it involves hand-painting highlights onto the hair, allowing for a seamless and natural look. This method creates a soft transition and dimension, as the color is typically applied in a way that mimics the way sun naturally lightens hair. The stylist can control the placement and intensity of the highlights, making it versatile for different hair types and styles.

In contrast, flat irons are primarily styling tools used to straighten hair or create curls, rather than a coloring method. Blow drying is a technique used for drying hair and adding volume, but does not involve any coloring or highlighting. Color remover is used to strip color from hair rather than adding highlights. Each of these methods serves a different purpose, but when it comes to adding highlights effectively, balayage stands out as the appropriate choice.