TY - CHAP M1 - Book, Section TI - Epidermis and Dermis A1 - Baumann, Leslie PY - 2015 T2 - Cosmeceuticals and Cosmetic Ingredients AB - The appearance of the skin is affected by both the outer layer of the skin, the epidermis, and the middle layer of the skin, the dermis. The deepest layer is composed of a subcutaneous fat layer. The thickness and contour of the fat layer can also affect the appearance of the skin. The fat layer and muscle layer below it are too deep to be influenced by topical skin care agents so they will not be discussed in this book. Instead, the epidermis and dermis will be explored. (For a more in-depth review of basic skin science, see Cosmetic Dermatology: Principles and Practice, 2nd edition, Chapters 1–8.) The epidermis and dermis contain many types of cells. Only the ones known to play an important role in skin care will be discussed here (Figure 5-1). SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/19 UR - dermatology.mhmedical.com/content.aspx?aid=1174541161 ER -