Due to these differences, hair does not grow in the same way or at the same speed in people of different ethnic origins. Asian hair is usually straight and either dark brown or black in color. It grows perpendicularly to the scalp. This hair type has the fastest growth rate at approximately 1. A strand of Asian hair has a somewhat round, even shape. Nonetheless, Asian hair has the lowest density of the three ethnicities. Caucasian hair can be straight, wavy or curly.
Race, Rather than Skin Pigmentation, Predicts Facial Hair Growth in Women
Race Differences in Hair Types
Body hair , or androgenic hair , is the terminal hair that develops on the human body during and after puberty. It is differentiated from the head hair and less visible vellus hair , which is much finer and lighter in color. The growth of androgenic hair is related to the level of androgens often referred to as male hormones and the density of androgen receptors in the dermal papillae. Both must reach a threshold for the proliferation of hair follicle cells. From childhood onward, regardless of sex , vellus hair covers almost the entire area of the human body. Exceptions include the lips; the backs of the ears; the palms of hands; the soles of the feet; certain external genital areas; the navel ; and scar tissue.
Ethnicity and hair structure
Background: The Ferriman-Gallwey hirsutism score is the currently accepted standard for assessing excess hair growth that may indicate hyperandrogenicity. The score was originally based on 60 Caucasian women, and recent studies suggest that it may need modification to be used in other populations. Objectives: To investigate ethnic, racial, and pigmentary variations in hair growth of the upper lip in diverse multinational populations. Results: Variations in hair growth of the upper lip were significantly related to self-reported ethnicity and race. Conclusion: The observed differences in constitutive hair growth illustrate the need to develop an ethnically stratified visual scoring method to more accurately characterize the severity of excess hair growth.
Waiting for a beard to grow in can feel a lot like watching grass grow. The younger you are, the longer it may take you to hit your beard goals. Many men will sport the beginnings of a mustache and a few sprigs of chin hair years before the rest of their beard starts to surface.