Answered by Ustadh Shuaib Ally
Could you kindly provide guidance on the permissibility of utilising wool from animals we are permitted to eat or synthetic hair as extensions/beautification for ones spouse?
Yes, in the Shafi’i school, a woman can use hair from animals we are permitted to eat, or synthetic hair as extensions, as beautification for one’s spouse. It is likewise permissible in the Hanafi school.
It is not blameworthy, generally speaking, to follow sound scholarship from other schools, such as in this matter.
Sources: Tuhfatul Muhtaj; Nihayatul Muhtaj