What Is Demi Permanent Hair Color
** Read on for a quick primer on hair color’s lesser-known formula: Semi vs. Demi vs. Permanent: What’s the difference? Semi-permanent dye: Also known as a gloss. These dyes aren’t able to deposit color inside the hair shaft so they sit on top instead. This allows you to add gentle shine and radiance to your hair but only for 6 to 12 washes. Demi-permanent: The in-between sweet spot. It can create more color change and last longer than semi-permanent....