Generally speaking, purple shampoo will not make your hair dull, but it can make it appear less vibrant if used too frequently. Purple shampoo is designed to help tone down brassiness and yellow tones in blonde, highlighted, and silver hair, and can be used to help maintain a cooler shade of blonde. However, using purple shampoo too often can cause your hair to become dry and brittle, leading to a dull appearance. It is recommended to use purple shampoo no more than once a week, and if you find that your hair is looking dull, it is best to reduce the frequency of use.

Does purple shampoo make your hair ashy?

Yes, purple shampoo can make your hair look ashy, especially if you have blonde or light brown hair. The purple pigments in the shampoo can neutralize the yellow or orange tones in your hair and make it look ashy or gray. To prevent this, you should use a moisturizing shampoo after using purple shampoo, and you should only use purple shampoo once or twice a week.

Does leaving purple shampoo in your hair tone it?

Leaving purple shampoo in your hair for an extended period of time can help to tone your hair and reduce brassy, yellow tones. However, leaving purple shampoo in your hair for too long can cause your hair to become dry and brittle, so it’s important to follow the directions on the bottle and only leave it in for the recommended amount of time. Additionally, you should make sure to condition your hair after every use to help prevent dryness and damage.