Answered by Ustadha Shazia Ahmad
From what I read, dyeing the hair is allowed except for black color. If the natural color of my hair is black and then I dye it to another color, can I dye it back to black again?
In short, for the purpose entailed in your question, it would be permissible to return your hair to its natural color. However, I recommend that you don’t dye your hair often with chemical dyes because they weaken, damage, and thin out the hair. Natural dyes such as henna strengthen the hair and make it shiny.
May Allah reward you for your striving to do what is correct.
[Ustadha] Shazia Ahmad
Checked and Approved by Shaykh Faraz Rabbani
Ustadha Shazia Ahmad lived in Damascus, Syria for two years where she studied aqida, fiqh, tajweed, tafsir, and Arabic. She then attended the University of Texas at Austin, where she completed her Masters in Arabic. Afterward, she moved to Amman, Jordan where she studied fiqh, Arabic, and other sciences. She later moved back to Mississauga, Canada, where she lives with her family.