Purple shampoo isn’t effective on darker shades like brunette or black.
Avoid using hot water when you shampoo; it can make your hair color fade.
Your roots need more time to absorb the shampoo than your ends, which is why you apply the shampoo there first. If you’re using purple shampoo on highlights and your base color is dark, only apply the shampoo to blond streaks. Purple shampoo does not affect dark hair. Prioritize your roots while shampooing to prevent damaged hair in the future.
The recommended time may vary slightly from brand to brand. Be sure to read your brand’s instructions and follow those if they’re different from ours.
If this is your first time and you aren’t sure how long to leave it on, start with 5-10 minutes. If you don’t get the results you want, leave it on for 10-15 minutes during your next treatment. If you leave the shampoo on longer than 15 minutes, your hair may take on a lilac tint. If this happens to you, don’t worry! You can fix that.
If you plan to leave the shampoo on your hair for this long, put a plastic shower cap over your head while you wait.
Using a purple conditioner with purple shampoo can lead to an ashy tone. Only use the conditioner if you want a pale hair color.
Great options include Matrix So Silver purple shampoo and Paul Mitchell Platinum Blonde purple shampoo.
The lighter the color, the less brassiness it will absorb from your hair. Keep this in mind when choosing the right purple shampoo for you.
If you’re not noticing any changes after a month, try upping your purple shampoo routine to 2-3 times a week. [16] X Research source
Diluting is ideal if you have already-warm hair and just want to touch up the color.
Try this if you have severely brassy hair or you’ve had limited results from washing with purple shampoo.
If your hair is frizzy, often has split ends, looks dull, or is prone to breakage, you may have dry hair. [20] X Research source
