Twelve-point scale grading system of scanning electron microscopic examination to investigate subtle changes in damaged hair surface

Skin Research and Technology : Official Journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI)
S Y LeeJ S Koh

Abstract

To assess the hair surface condition, scanning electron microscope (SEM) is commonly used and it remains an indispensable hair morphology characterization technique. Yet, the technique is criticized for having subjective viewpoints and limitations in distinguishing the appearance of cuticle layers. The aim of this study is to establish an objective classification system and also to subdivide by detailed description of damaged cuticle layers. Hair samples were collected from female subjects (n = 500) who participated in hair efficacy study and Asian hair bunches (n = 180) that were previously collected. Damage to hair was initiated by chemical, heat stress and ultraviolet irradiation. We suggested the grading criterion on a 12-point scale and compared with a wide range grading system on a 5-point scale. We evaluated other hair surface-related parameters such as hair luster-ring and combing load to verify the validity and efficacy of our new grading system. The grading criterion on our 12-point scale revealed an improved discrimination compared to the wide range grading system. Hair surface-related parameters were significantly improved after hair care product, and these tendencies were likely to be determined to be similarly imp...Continue Reading

References

Apr 20, 2000·International Journal of Biological Macromolecules·J W Hearle
Sep 3, 2003·Journal of Microscopy·G PolettiE Barborini
May 22, 2008·International Journal of Cosmetic Science·L R RobinsonD L Bissett
Jun 1, 1991·International Journal of Cosmetic Science·J A Swift
Dec 8, 2011·Annals of Dermatology·Yoonhee LeeWon-Soo Lee
Nov 23, 2013·International Journal of Dermatology·Yoonhee LeeWon-Soo Lee

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Citations

Mar 23, 2017·Skin Research and Technology : Official Journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI)·M G A Leite, P M B G Maia Campos
Mar 29, 2020·Royal Society Open Science·Fanny ChuBradley R Hart
Apr 10, 2021·Journal of Cosmetic Dermatology·Flávio Bueno CamargoPatrícia Maria Berardo Gonçalves Maia Campos

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