Final answer:
When performing a chemical blow-out, it is important that the hair is not overrelaxed, clean, and detangled. Oiling the hair before the process is not recommended.
Step-by-step explanation:
When performing a chemical blow-out, one important consideration is that the hair must not be overrelaxed. Overrelaxing the hair can lead to damage and breakage. It is important to ensure that the hair is in a healthy state before applying any chemical treatments.
Clean hair is also an important consideration when performing a chemical blow-out. Any dirt, oil, or product buildup on the hair can interfere with the effectiveness of the chemicals used in the blow-out process. Detangling the hair before performing a chemical blow-out is essential. Tangled hair can affect the even distribution of the chemicals, leading to uneven results.
However, applying oil to the hair before a chemical blow-out is not recommended. Oil can create a barrier on the hair, preventing the chemicals from properly penetrating and processing the hair.