According to available information, Zheng Shusen from China has been recorded as having one eyebrow hair measuring an incredible 19.1 cm (7.5 in) in length.
While determining the overall "biggest natural eyebrows" (considering thickness and length of all hairs) is challenging and requires specific measurement criteria, Zheng Shusen holds a record for the longest eyebrow hair. The claim that the measurement happened in Menzhouli, Inner Mongolia in February 2016 is provided in the reference.
In Chinese culture, long eyebrow hairs are often associated with good health and longevity.
