Avoid bad hair color and highlights

A few warning signs that your highlights or hair color might be headed in a BAD BAD direction.
Poorly folded and sloppy looking foils. Without careful folding and sealing, color can leak from the sides and bleed onto the scalp causing irritation and color mishaps.
Chunky application. Unless you're going for that "chunky" look, highlights should be seamless. Fine weaving alaways works best