Why does a goatee grow at 0.01 to 0.02 inches per day?

The rate at which facial hair, such as a goatee, grows is determined by genetics and hormonal factors. On average, facial hair grows at a rate of 0.01 to 0.02 inches per day for most men. This rate of growth is influenced by the individual's age, genetics, and levels of testosterone and dihydrotestosterone (DHT) in the body. These hormones play a key role in stimulating the growth of facial hair. Additionally, factors such as diet, stress, and overall health can also impact the rate at which facial hair grows.

A goatee does not grow at 0.01 to 0.02 inches per day. The average facial hair growth rate is 0.5 inches per month.