22 and a bit thin

[manclad]

Hi all, im new here. I have recently noticed that my hair is very thin at the crown and im receding ever so slightly. i dont really know how bad it is but im 22 and i think it i probably shouldnt be as bad as it is. i have uploaded a couple of pics, i havnt used any treatment yet but really want to start quickly because im getting a bit down about it. i havnt been to my GP because i dont have much time, but i went into a local chinese medical shop and they offered me something called hair tonic 101G, anyone used it?