Pubic hair usually grows first, adhered to by underarm hair after about a year. Face hair and other body hair will certainly establish after around 2 years of the age of puberty. Growth of body hair will usually quit at the end of adolescence. Since the age of puberty ends at various ages for various people, there is no set age at which the genital areas will have totally established. The genitals are typically fully developed when puberty is total.