Vellus hair

Vellus hair is short, thin, light-colored, and barely noticeable hair that develops on most of a human's body during childhood. Exceptions include the lips, the back of the ear, the palm of the hand, the sole of the foot, some external genital areas, the navel, and scar tissue. The density of hair – the number of hair follicles per area of skin – varies from person to person.

Each strand of vellus hair is usually less than 2 cm long, and the follicle is not connected to a sebaceous gland.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY 2.5

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