Permanent Hairstyles (Perms)

Permanent hairstyles, or "perms," involve chemical treatments that restructure hair to create lasting curls or waves by altering disulfide bonds in hair keratin. While perms provide durable cosmetic effects, they can damage hair shaft integrity, cause scalp irritation, and pose systemic health risks. Issues such as irritant contact dermatitis and acquired trichorrhexis nodosa are highlighted in case studies. To minimize harm, it is crucial to assess clients properly, choose the appropriate perm type, follow safe application techniques, and ensure post-treatment care. This chapter offers guidance on the chemical principles, clinical complications, and practical recommendations for safe perm practices.