👉 Heliopathes, also known as helioblasts, are a class of cells that form in the body's epidermis and sebaceous glands. These cells play a crucial role in maintaining the skin's barrier function by producing a protective layer of oil called sebum. Heliopaths can be found throughout the skin, including the upper layers of the epidermis (the "skin" part) and the lower layers of the dermis (the "derm."