Observation of the Microstructure of Human Hair Based on a Single Detector Optical Coherence Tomography
TLDR Chemical dyes damage hair's internal structure more than perming, as shown by a special imaging technique.
The study investigates the microstructure of human hair using Single Detector Optical Coherence Tomography (SD-OCT). Hair, primarily composed of keratin and various amino acids, serves as a crucial protective barrier for the human scalp. Despite common perceptions of hair as merely a metabolic byproduct, the research underscores its significant protective value.