Beard
A beard is facial hair growing on the chin, cheeks, jaw, or neck. Its appearance varies with growth pattern, length, and grooming.
Hair follicle: A skin structure that produces a hair shaft from cells surrounding its root. Beard hairs grow from follicles concentrated in characteristic areas of the face.
Shaving: The removal of hair close to the skin using a blade or another cutting tool. Shaving removes visible beard hair without changing its growth rate or thickness.
Razor: A tool with a blade designed to cut hair close to the skin. The razor became a daily grooming instrument as clean-shaven styles gained prominence.
Clean-shaven: An appearance in which facial hair has been removed or kept too short to be visible. It is the direct stylistic opposite of wearing a visible beard.
Androgen: A class of hormones that includes testosterone and influences development of male-pattern traits. Androgens help trigger terminal beard growth during puberty.
Barber: A professional who cuts and styles hair, often specializing in short hairstyles and facial hair. Barbers trim, shape, and maintain beards using specialized techniques.
Beard tax: A tax imposed on men for wearing beards in certain historical societies. Historical beard taxes show how rulers used facial hair to regulate appearance and status.
Stubble: Short, coarse hair visible on the skin after recent shaving or trimming. Stubble sits between a clean-shaven face and a longer, shaped beard.
Testosterone: A steroid hormone involved in sexual development, reproduction, and the maintenance of muscle and bone. Testosterone contributes to facial-hair development, though follicle sensitivity also matters.
Beard oil: A grooming product of carrier oils, often with fragrance, applied to facial hair and the skin beneath it. It is used to condition beard hair and reduce dryness of the underlying skin.