Negative Commandment #164
Sefer Ha’mitzvos Ha’Katzar (The concise book of mitzvos)
By the Chofetz Chaim
This book lists the Torah mitzvos that can be observed today
Second Section – the Negative Commandments
164. It is a negative commandment "do not make one's self bald over death of a relative"
As it states in Devarim (Deuteronomy) 14:1, "do not make baldness between your eyes for a dead person." This means do not pluck out the hair in one's head.
This applies in all places and at all times, for men and for women.