What is the ruling on adding false hair to woman’s hair?

Question 52: What is the ruling on adding false hair to woman’s hair?

Answer: All praise be to Allaah Alone, and peace and blessings be upon His Messenger, and his family and Companions. It is Haraam (prohibited) for a woman to add false hair to her own, or any other material that can be used in this respect, for there are proofs reported to this effect… read more here.

Wearing wigs for the sake of adornment and beautification

Question 51: What is the ruling on women who wear wigs to appear attractive to their husbands?

Answer: All praise be to Allaah Alone, and peace and blessings be upon His Messenger, and his family and Companions. Both husband and wife should make themselves attractive to each other, in ways that endear them to each other, so as to strengthen their relationship, but this has to be within the bounds permitted by the Sharee‘ah (Islaamic law), and not by doing things that it has prohibited… read more here.