Which endocrine glands stimulate puberty and the appearance of secondary sexual characteristics?

The endocrine glands that affect the development of secondary sexual characteristics are called the sex glands and are different in men and women.
The sex glands are glands of mixed secretion because they produce more than just hormones. but also sex cells
So in women, this function is performed by the ovaries, which produce the hormone estrogen.
In men, these are Leidich cells located in the testes, which produce the hormones testosterone and androsterone. The testes also produce small amounts of estrogen.