If a hair strand shows high porosity, which product is used to equalize porosity?

• A. Pre-wrap
• B. Conditioner
• C. Shampoo
• D. Oil

Answer: (A)

Balancing porosity takes place by preparing the hair so every strand responds to chemicals in the same way. When a strand shows high porosity, the cuticle is more open, so it tends to absorb products quickly and unevenly. A pre-wrap acts as a protective barrier during the prep stage, creating a more uniform surface and helping regulate how the chemical solution interacts with the hair. This helps equalize absorption across the strand so color, perm, or relaxer processing stays more even.

Shampoo cleans and can strip oils, which doesn’t establish a barrier for even absorption. Conditioner smooths and nourishes but can seal the cuticle too much or create inconsistent layers for processing. Oil adds moisture and a slippery coating that can interfere with how chemicals penetrate the hair.