research Dose-Dependent Histopathological and Structural Impact of Chemical Hair-Straighteners on Scalp Epithelium and Hair-Fibres Using Albino Wistar Rats September 2025 in “Sahel Journal of Life Sciences FUDMA” Chemical hair straighteners can severely damage hair and scalp with repeated use.
research Ultrastructural aspect of the keratinolytic activity of piedra. 4 citations , January 2000 Piedraia hortae fungi dissolve both the outer and inner layers of hair.
research Biomechanics of chemically treated hair for continuous 1D strands February 2026 NaOH treatment improves hair strength and suitability for textiles.
research Hair Pores Caused by Surfactants via the Cell Membrane Complex and a Prevention Strategy through the Use of Cuticle Sealing 1 citations , November 2023 in “Cosmetics” Surfactants damage hair, but sealing the cuticle can prevent this.
research Scanning Electron Microscopy Approach for Evaluation of Hair Dyed with Lawsonia inermis Powder: in vitro Study 8 citations , November 2019 in “International Journal of Morphology” Henna dye improves hair cuticle and thickness but effects vary by hair type and health.