What hormone is known to cause pores to open and increase sebum production in teenagers?

The hormone that is known to cause pores to open and increase sebum production in teenagers is androgen. Androgens are a group of hormones that play a role in the development of male characteristics and reproductive activity, but they are also present in females. During puberty, the levels of androgens increase significantly, which stimulates the sebaceous (oil) glands in the skin, leading to increased sebum production. This can contribute to the development of acne, which is commonly experienced by teenagers during this developmental stage.

While hormones such as estrogen, progesterone, and testosterone also play important roles in the body, particularly in relation to reproductive functions, androgens specifically target the sebaceous glands and are directly involved in increasing oil production and affecting pore sizes during adolescence.