Vellus hair is the majority of hair found on the:

Vellus hair is fine, soft, and typically unpigmented hair that can be found covering much of the human body. It is especially prevalent in areas where the hair is not meant to provide insulation or protection, such as the face. The face generally has a higher concentration of vellus hair compared to other body parts, as it serves various functions including thermoregulation and sensory feedback.

While vellus hair is also present on the arms, legs, and even the eyebrows, these areas typically have a mix of terminal hair and less prominent vellus hair. The face is distinctive because it is predominantly covered by this type of soft hair, which can aid in providing a fine protective layer. Therefore, identifying the face as the area where vellus hair is most abundant aligns with the characteristics and distribution of this type of hair on the human body.