The hair follicle develops from which skin layer?

• A. Epidermis
• B. Hypodermis
• C. Subcutaneous
• D. Dermis

Answer: (D)

Hair follicles form from an inward growth of epidermal cells. During development, epidermal cells proliferate and extend downward into the underlying dermis, creating the follicle structure. The dermis then contributes the supportive connective tissue components—the dermal sheath and dermal papilla—that interact with the epithelial cells to drive growth and cycling. So the origin is the epidermis, while the dermis provides essential supportive parts; the hypodermis/subcutaneous layer is not where follicles originate.