Electron microscopy and tomography reveal that sodium 2-naphthalene sulfonate incorporated into perming solutions swells and tilts trichocyte intermediate filaments causing straightening of curly Japanese human hair.
W G BrysonD P HarlandJ P CaldwellJ A VernonR J WallsJ L WoodsS NagaseTakashi ItouK KoikePublished in: International journal of cosmetic science (2019)
The effects of conventional and SNS perming on the morphological and ultrastructural components of curved Japanese hair and high-curl Merino wool fibres have given clear insights into understanding the mechanism of fibre curvature change.