* Color Deposit Only: The stylist will likely use a dye that deposits color onto the hair rather than lifting the existing pigment. This means the purple will be more of a stain on top of your dark hair.
* Purple Hue: The purple may appear more subtle and may not be a vibrant, bright purple. It often shows as a dark purple or a plum color and might only be noticeable in certain lighting.
* Hair Condition: Highlights will show up best on healthy, undamaged hair.
* Color-Depositing Products: Your stylist might use a color-depositing conditioner or mask to maintain the purple hue between salon visits.