Which contains blood dermis or epidermis?

The dermis contains blood.

The skin is composed of two layers: the epidermis and the dermis. The epidermis is the outermost layer and is made up of keratinized cells that protect the body from the environment. The dermis is the inner layer and is made up of connective tissue, blood vessels, and nerves. The dermis provides support and nourishment for the epidermis and also contains the hair follicles and sweat glands.