Waxing Moon in Taurus, Virgo, Aquarius
The moon phase along with an astrological sign are the rule for perms.
The sheer number of votes puts the application of chemical treatments in the waxing moon phase, from New Moon to Full Moon for the quality of absorption.
The top three recommended signs are used in this planner: Taurus, Virgo, and Aquarius.
Opinions vary about the astrological signs. A shared quality for Aquarius and Taurus is that they are Fixed in astrology terms. Virgo is Mutable but in its own class of the only barren Earth sign. Virgo is also dry and cold like Taurus.
Virgo is the winner for this category and is marked BEST.