The Ruling on Opening Women's Hair Salons

Question:
He also says: What will happen to the pharmacies, and then we will be forced to follow their dictates regarding the patients in these pharmacies?

Answer:
This is not permissible. Opening hair salons for women so that they go out of their homes is a matter that is not permissible; because it encourages tabarruj (a woman's display of her adornment), and it encourages women to be lax in going out. Perhaps customs of the disbelieving women will be practiced there, such as how to style and arrange the hair. All these are matters to be guarded against.
It is obligatory for the woman to stay in her home, and to arrange her clothing, her hair, and all her concerns in her home. This is more concealing for her and more protective for her. Also, opening hair salons should not be taken as a means of earning, because the earnings that come from it are, at the very least, tainted, because they are mixed with some of the prohibitions. It encourages women to go out. Perhaps at first a person tries to control it, but then, driven by the love of money and the desire to attract customers, he expands and does things that encourage people to come, which are contrary to the Shari'ah (Islamic sacred law) etiquettes.
So it is obligatory to prohibit this matter, and to keep women in their homes, and to have them arrange their affairs in their homes, in the protection of Allah, and in safety.