Final answer:
Normal hair should NOT undergo reconditioning before perming. Reconditioning is intended for dry, brittle, or overporous hair to heal and strengthen prior to perming. Over conditioning healthy hair might negatively affect perming.
Step-by-step explanation:
Among the conditions listed, normal should NOT be present before reconditioning hair before perming. Reconditioning treatments are typically designed for hair that is dry, brittle, or overporous. These conditions imply damage to the hair structure which reconditioning aims to repair, making it healthier and more resilient to further treatment such as perming.
When hair is already in a normal condition, it means it's healthy and balanced, so there is no need for pre-perming reconditioning. Over conditioning or reconditioning can lead to hair being too soft and can actually reduce the effectiveness of the perming solution. Perming works best when the hair has a certain level of porosity to properly absorb and react with the chemicals in the solution.
Learn more about Hair Reconditioning