Now, you are referring to chemical perming, which is commonly carried out in hair salons by professional hairdressers.

From my experience, when I meet such technicians, I can usually recognize that they have worked as hair stylists.

Hair that has been processed through chemical perming often has a strong and unpleasant odor. This smell mainly comes from the perming chemicals, especially reducing agents such as thioglycolic acid (or its salts).

Chemical perming works by breaking the disulfide bonds (–S–S–) in the keratin structure of the hair, and then reforming them to create a new shape.

• Cuticle damage or lifting
• Weakening of internal protein structure
• Residual chemicals remaining

This is why the hair may emit a strong chemical smell, especially when wet or heated.

In particular, bleached or light-colored hair is more vulnerable.

• Severe dryness
• Loss of elasticity
• Hair breakage
• Possible fiber damage in extreme cases

지금 말씀하시는 것은 미용실에서 사용하는 화학적 퍼머입니다.

퍼머 처리된 모발은 강한 냄새가 나는 경우가 많으며, 이는 티오글리콜산 등의 화학 성분 때문입니다.

퍼머는 모발 내부의 이황화 결합을 끊고 다시 연결하는 과정입니다.

• 큐티클 손상
• 단백질 구조 약화
• 화학 성분 잔류

특히 탈색된 모발은 매우 취약합니다.

• 건조
• 탄력 저하
• 모발 끊어짐
• 심한 경우 손상