Bottle cap and cosmetic bottle

The invention belongs to the field of beauty and skin care, and provides a bottle cap and a cosmetic bottle, the cosmetic bottle comprises the bottle body and the bottle cap, the bottle cap comprises an annular cap body, a guide-in mechanism and a locking mechanism, the annular cap body is provided with a first end used for being connected with the opening end of the bottle body and a second end arranged opposite to the first end, and the guide-in mechanism is arranged at the opening end of the bottle body; a through hole penetrating through the first end and the second end is formed in the annular cover body; the leading-in mechanism is rotatably arranged in the through hole, and a locking seat is arranged on the leading-in mechanism; the locking mechanism is used for being matched with the locking seat in an inserted mode so as to lock the position of the guiding-in mechanism, the locking mechanism is installed on one side of the annular cover body, and the locking mechanism extends into the through hole an