Rabbi Chyzkia says that a man should be worried about letting his wife show her hair outside. This is one of the things a woman should keep at home. The man is the aspect of Zeir Anpin that channels the Light to Malchut that is the wife. She is the vessel that receives the Light for the household. The hair represents channels of light and when they are exposed, the energy is drained and the first to lose energy are the children.
When the hair of a woman is exposed outside, the ‘hair’ of the other-side comes out and hang onto the woman’s hair and drain it. The Zohar says that for that reason, a woman shouldn’t expose her hair even at home because the walls may have negative energy that may get attached to her.
The hair of men represents judgments and so is with women. Since women as Malchut holds and manifest the Light they receive, they affect the entire family. She may affect the channel of sustenance that comes from her husband. Her children may be disrespectful because they don’t get enough or pure light.
Women don’t lose hair except for genetic issues or during chemo treatment to fight the spread of cancer. This fact tells us that women are closer to spiritual energy. Women also give importance to their hair because it represents their energy. They may not aware of the spiritual significance but nevertheless, they spend a lot of time and money to keep it in the best shape.
In older times women of many cultures covered their hair in one form or another.
Disregarding these spiritual laws break the protection and the bond of the family unit. The sages predicted that the children of our times would disrespect their parents and elders.
To protect the family unit from losing energy, the men should not look at exposed parts of other women. Women should be modest in their look, not to attract prying eyes that would drain their energy. A woman can dress nice but modest, competing with other women on social attention is spiritually bad and the outcome is negative. A woman can dress beautifully without exposing her beautiful legs or eye-catching cleavage. An excessive amount of perfume that attracts men to come closer for a deep sniff is not good. Dress in clothes and makeup to feel comfortable, not to have the other husbands in the party looking desirably at you.
A single woman may take extra steps to be attractive but not to a point that would rise sexual desires in men because it won’t be a true and lasting bond with the man.
Wigs are not Kosher, except for purely synthetic ones. The natural hair wigs come from different parts of the world, mostly from poor women that sell their hair. Some hair used for wigs is removed from dead women. Totally negative energy. It would be better not to wear wigs. It is recommended to remove the wigs from home and burn it.