Relationship among Natures of Scalp Skin, Hair Follicle and Hair Shaft in Young Females

This paper reports the relationships between various parameters obtained from measurements on scalp skin, hair follicle and hair shaft in young females (13-28 years old, n=37). Parameters measured are; (1) sebum contents (2) surface temperature (3) water contents (4) stratum corneum cell area, as to scalp skn; (5) glucose-6-phosphate dehydrogenas (G6PDH) (6) transglutaminase (TGase), as to hair follicle enzyme activities; and (7) cross-sectioned area (8) cuticle scale edge pattern (9) tensile strength (10) limiting extension (11) frictional coefficient (12) amino acid composition (13) cystine contents (14) polar lipids contents (cholesterol sulphate and ceramides) (15) contents of trace elements (Mg, K, Ca, Fe, Cu, Zn), as to hair shaft. The effects of hair care customs and hair treatments on the chemical and physical properties of hair were also investigated. As the results from statistical analysis of these various parameters, a positive correlation (p