The two categories of surface texture are known as which?

• A. Unactivated (Smooth) and Activated (Rough)
• B. Smooth and Polished
• C. Light and Dark
• D. Fine and Coarse

Answer: (A)

Surface texture refers to how the hair’s outer layer feels and looks, and there are two states you’ll encounter: unactivated (smooth) and activated (rough). An unactivated surface is smooth, with the cuticle lying flat and reflecting light for a sleek, shiny appearance. An activated surface is rougher because the cuticle scales are raised or uneven, creating texture and more grip. This distinction helps you predict how hair will behave and what products or techniques will work best—smooth surfaces respond to conditioning and heat with a glossy finish, while activated surfaces benefit from texturizing or smoothing methods to manage or enhance the rough texture. The other options describe color, polish, or strand thickness rather than the two-state concept of surface texture.