➖NEGATIVE ION-POWERED HAIR TOOLS. ➖ Ions are molecules with a positive or negative charge. A positive charge means wide-open hair cuticles, leading to drier, more damaged strands. So, as you can imagine, chemically or heat-styled hair typically carries a higher positive charge than untreated hair. Negative ion technology works to seal those cuticles, protecting hair from heat damage, so you can style without stress. Plus, it gives an instant boost in silkiness and shine. -wavytalk