Gross dissections, histologic sections, and clinical endoforehead cases were used to study the anatomic features of the central forehead, with particular emphasis on muscles and fascia. The musculature exists in three layers: superficial (frontalis, procerus, and orbicularis oculi muscles), intermediate (depressor supercilii muscle), and deep (corrugator muscle). In contrast to the commonly accepted view that the depressor supercilii muscle is merely a medial portion of the orbicularis oculi muscle, our studies indicate that it is an anatomically distinct muscle. The galea is comparable to the superficial fascia in the face and meets the definition of a “SMAS” layer; thus the concept of a continuous “facial SMAS” extending throughout the face is demonstrated. The existence of a brow fat pad that passes across the entire forehead and separates the various muscle layers is also confirmed. Brow shape is shown to be a reflection of the interplay between opposing muscles, whereas brow ptosis occurs as the inevitable consequence of the forces exerted at the various muscle insertions.