Some female students with fine hair try to make it thicker in the ways that are known to girls. What is the ruling on that, knowing that this is one of the things that westerners do?
Praise be to Allaah.
The scholars say: there is nothing wrong with curling the
hair. If a woman curls her hair in a manner that does not imitate the way
that immoral kaafir women curl their hair, there is nothing wrong with that.
Shaykh Ibn ‘Uthaymeen in al-Fataawa al-Jaami’ah li’l-Mar’ah al-Muslimah, part 3, p. 889