What are the contraindications for using a chemical perm?

The contraindications for using a chemical perm are critically important to ensure both the safety of the client and the integrity of their hair. Recent hair coloring or damage and scalp sensitivity are particularly significant factors to consider before applying a chemical perm.

When someone has recently colored their hair, the hair's structure may already be compromised. Chemical coloring alters the hair's cuticle and cortex, making it more susceptible to damage from additional chemical processes like perming. If the hair is damaged, applying a perm can exacerbate the condition, leading to further breakage or undesirable results.

Scalp sensitivity is another critical concern. If the scalp is already sensitive, applying chemicals can cause irritation, discomfort, or even burns during the perming process. It’s essential to assess the health and condition of both the hair and the scalp before proceeding with such a treatment to ensure the client does not experience adverse reactions.

In contrast, while dry hair and split ends, oily scalps, dandruff, and thinning hair may warrant caution, they are not as critical as the issues associated with prior chemical treatments and the condition of the scalp.