Sun-In and Hair Coloring
Q: Can I color my hair after using "Sun-In" for several years?
"We suggest waiting at least 4 weeks after using Sun-In before you add any chemicals to your hair. Always do a test strand and follow product instructions."
Remember that Sun-In is actually a hair lightening product - albeit a mild one - and that the results of lightening the hair are permanent. Because of the nature of the product, it can make the hair more porous and you should always do your best to combat potential hair damage from styling and further hair color processes.
You will also want to note that Chattem, Inc. does NOT recommend using Sun-In on color-treated hair. So, once you color your hair, you will need to avoid any further use of the Sun-In product.
©Hairfinder.com
See also:
How to do a test strand
Highlighting and highlights
What are the negative effects of highlighting on your hair?