-“Why did devotees of female-styled hair for men struggle so fiercely to encourage an unnatural adornment? “Doth not even nature itself teach you,” Paul asked, “that, if a man have long hair, it is a shame unto him?” (1 Corinthians 11:14). And the same Paul said, “But if a woman have long hair, it is a glory to her: for her hair is given her for a covering” (1 Corinthians 11:15). Not all men whose hair is tossed back and forth are effeminate, but surely there is some question about it. How far, we wonder, will men and women go to pay ovations to the god of style? Will men wear rings in their noses when style dictates? Will young people still fall prey to their god of style, which they worship? “Everybody does it.” Tell me: Is it not true that the dress, the grooming, paints an immediate picture and classifies a person? The famous Jerry Rubin says: Young kids identify short hair with authority, discipline, unhappiness, boredom, hatred of life and long hair with just “letting go.” Wherever we go, our hair tells people where we stand on Vietnam, lawless campus destructions, and drugs. We’re living TV commercials for the revolution. Long hair is the beginning of our liberation from sexual oppression. What group do you wish to follow and with which group do you wish to identify? Will you turn down authority and discipline and rebel against everything that is? Do you wish to be in classes with men who look manly or men who look effeminate?” (Spencer W. Kimball, “Be Ye Therefore Perfect” 1974 Devotional https://speeches.byu.edu/talks/spencer-w-kimball_ye-therefore-perfect/)

-There is also something to be said about overly emphasizing the outward appearance, as expressed by Hugh Nibley, apparently speaking about the BYU dress code which he saw as overly pharisaic:

“…the worst sinners, according to Jesus, are not the harlots and publicans, but the religious leaders with their insistence on proper dress and grooming, their careful observance of all the rules, their precious concern for status-symbols, their strict legality, their pious patriotism. Longhairs, beards, and necklaces, LSD and rock, Big Sur and Woodstock, come and go, but Babylon is always there: rich, respectable, immovable… We want to be vindicated in our position and to know that the world is on our side as we all join in a chorus of righteous denunciation; the haircut becomes the test of virtue in a world where Satan deceives and rules by appearances.” (Hugh Nibley, 1973 lecture that Nibley gave at BYU, later reprinted in the collection, What is Zion? Joseph Smith Lecture Series 1972-73)

-Temple workers are currently required to not wear facial hair.