The epidermis, the outermost layer of skin, serves two main functions:
- Protection: The epidermis acts as a waterproof barrier, shielding the body from external threats such as bacteria, viruses, and harmful UV radiation. It also helps to prevent the loss of essential fluids and electrolytes.
- Skin Tone: The epidermis contributes to skin tone by producing melanin, a pigment responsible for skin color. Melanin production can be influenced by factors like genetics and sun exposure, resulting in variations in skin tone.
