Try washing your hair with just conditioner once in awhile. That will help protect your color longer. [3] X Expert Source Martin NeptonProfessional Hair Stylist Expert Interview. 17 November 2020.
You can even apply conditioner on days you shower but don’t shampoo your hair to keep it strong and smooth.
Avoid using a clarifying shampoo, which will quickly strip the color from your hair. [8] X Research source This is particularly important when you have colored your hair in dark or bright shade, like black, purple or green.
Look for products containing natural oils, like coconut or jojoba, and gentle cleansers such as sodium myreth or trideceth. Check the ingredient list to be sure the products don’t contain sodium laureth sulfate, sodium lauryl sulfate, or ammonium laureth sulfate.
You can put a shower cap on to allow the heat from your scalp to intensify the results, if desired.
You could also use a UV-protectant spray to prevent sunlight from damaging your hair. [16] X Research source