Demi-permanent hair color is ammonia-free, slightly alters hair tone, and lasts between five to 12 washes. Unlike semi-permanent dye, demi-permanent color penetrates the first layer of hair, providing ...

The two are similar, but not exactly alike. Permanent hair color is hair dye that will last a long time, without washing out; it needs to grow out. That's because permanent color opens the cuticle ...

Semi-permanent hair dye is exactly what it sounds like: It’s hair dye that lasts longer than temporary color, but shorter than permanent hair color. Makes sense, right? It's sort of like paint for ...

Ever wish your hair could have that fresh-from-the-salon look all the time? Same. If you can’t make it to the chair as often as you’d like, the best at-home hair color treatments—whether you’re ...

While you can technically dye your hair as often as you’d like, it’s more a matter of how often you *should* dye your hair so that you can minimize damage and maintain your hair’s health. How often ...