Is Matrix Color Sync Sheer Acidic Toner suitable for all hair types?
Yes, Matrix Color Sync Sheer Acidic Toner is suitable for all hair types, including brunettes.
Can I use this toner on color-treated hair?
Yes, this toner is safe to use on color-treated hair. It provides a subtle enhancement to the existing color.
How long does the toner's effect last?
The longevity of the toner's effect may vary depending on individual factors such as hair porosity and maintenance. Generally, the toner's effect can last up to several weeks.