During the pre-perm analysis you assess the hairs what?

During the pre-perm analysis you assess the hairs what?

• A. Porosity
• B. Elasticity
• C. Texture
• D. Density

Answer: (A)

Porosity is what you assess during the pre-perm analysis because it shows how easily the hair will absorb and retain chemical solutions. This directly impacts how the perm solution penetrates the cortex and how long processing should take. If hair is highly porous, it will take up solution quickly and can overprocess if the time is not adjusted, so you may shorten processing or use milder solutions. If hair is low porosity, it resists penetration and may require longer processing or the use of heat to achieve the desired curl. Elasticity is also important for overall hair health and is typically checked to gauge how the hair will hold up during chemical services, but the factor most critical for planning the perm is porosity. Texture and density influence how you section and wrap, yet porosity most directly determines chemical uptake and processing needs.

Porosity is what you assess during the pre-perm analysis because it shows how easily the hair will absorb and retain chemical solutions. This directly impacts how the perm solution penetrates the cortex and how long processing should take. If hair is highly porous, it will take up solution quickly and can overprocess if the time is not adjusted, so you may shorten processing or use milder solutions. If hair is low porosity, it resists penetration and may require longer processing or the use of heat to achieve the desired curl.

Elasticity is also important for overall hair health and is typically checked to gauge how the hair will hold up during chemical services, but the factor most critical for planning the perm is porosity. Texture and density influence how you section and wrap, yet porosity most directly determines chemical uptake and processing needs.