462 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS sunscreens, 209 triclosan topical deodorant products, 223 Egypt personal care items microbial content, 435 Elasticity hair damage mechanical properties, 263 semisolids, 1 skin in vivo characterization, 141 stratum corneum stress-strain curves, 21 Electrodes laboratory setup for skin conductivity, 63 Electron molecular orbit theory, 193 transfer triboelectric charging of hair, 341 Electron microscopy silicone deposition on hair fibers, 247 Electron spectroscopy for chemical analysis (ESCA) hair surface, 263 silicone deposition on hair fibers, 247 stratum corneum adsorption, 295 substantivity of conditioning polymers hair substrates, 233 Electron spin resonance (ESR) measurement fluidity in semisolids, 1 Electrostatic properties of SDS/C•2DMAO mixture stratum corneum disruption, 21 Elongation hair fibers charge density, 341, depilatory action via thermochemical analysis, 287, stress-strain relations, 263 Emollients lipophilic surfactant moisturizer, 419 stratum corneum membrane lipid removal, 295 ultraviolet absorbance sunscreen chemicals, 209 Emulsifier polyoxyethylene surfactant cosmetics, 419 Emulsions aqueous n-nitrosation, 29 cosmetics carbomer modification, 353 ESR technique floccules, 1 silicone deposition on keratins, 247 stability water-in-oil-in-water, 353 Energy activation shampoo preservative system, 307 binding polymers and lipids on skin, 295 mechanical measurements hair damage, 263 transmission spectroscopy siloxanes on keratins, 233 Engineering biochemical, 351 Enzymes bioconversion of provitamin vitamin C and vitamin E, 333 oxidation of DOPA eumelanin, 179 Eosin methylene blue agar dehydrated medium microbial activity, 435 Epidermis barrier function effect of sodium lauryl sulfate, 63 cell damage, by ultraviolet radiation, 11 cell kinetics stratum corneum turnover time, 321 chemical absorption, 397 living skin equivalent, 141 phospholipids, 353 Equations Arrhenius chemical reaction rate by temperature, 307, ESR technique, 1 cell conductivity correlation, 63 correlation DRIFTS ban ratio and Si by AA, 247 Debye-stokes viscosity of semisolids, 1 diffuse reflectance siloxane disruption, 247 dismutation of superoxide amion bleaching agent, 179 first order reaction linalool decomposition, 385 flux per unit skin area and cumulative amount of vitamin, 333 force reduction hair extendability, 371 friction coefficient twist method, 371 hair bending recovery, 125, fiber recovery, 125, flexural stiffness, 125, force time diagram, 125, the extensional set, 125, time dependence of recovery, 125 inactivation degree bactericidal activity by cosmetic pigments, 83 keratin reduction, 99 nitrosation reaction, 29 oxidation with hydrogen peroxide, 43 polymer surface coverage, 295 relative absorbance of cleansers, 451 resistance barrier cream effect, 63 skin conductivity, 63 sunburn cell index, 11 twist method hair friction, 371 weight loss hair, 371 Equilibrium keratin reduction, 99 Erythema bar soap irritancy, 153 effect of sodium lauryl sulfate, 63, ultraviolet radiation, 11 quantitation scanning spectrophotometer, 45l skin injury nonionic surfactants, 419 Escherichia coli growth efficacy of triclosan, 223 rate of death shampoo preservative stability, 307 test organism interactions of cosmetic pigments with preservatives, 83 toothpaste, 435 Esters hydroxyl group alkanolamine, 29

SUBJECT INDEX 463 p-hydroxybenzoic acid bactericidal activities, 83 Ethanol aerosol sprays efficacy of triclosan, 223 di-t-butylnitroxide ESR spectrum, 1 keratolytic solution stratum comeurn disruption, 21 solvent nitrosation rates, 29, physical properties of hair, 263, sunscreen absorbance, 209 water mixture stratum corneum percutaneous absorption, 397 Ether alkyl surfactants emulsifying properties, 419 treatment stratum comeurn disruption, 21 Ethoxyethanol solvent sunscreen absorbance, 209 2-ethoxyethy!-@-methoxycinnamate sunscreen chemical, 193 Ethyl acetate solvent nitrosation rates, 29 Ethyl-4-bis amino benzoate sunscreen chemical, 193 Ethyl dihydroxypro@yl PABA sunscreen chemical absorption, 209 Ethylene molecular orbit theory, 193 Ethylene glycol concentration of chemicals stratum corneum absorption, 397 Ethylene oxide chain in cosmetics, 419 Ethyl hexyl cinnamate sunscreen, 11 2-ethylhexyl-2-cyano-3, 3-di@henylacrylate sunscreen chemical, 193 2-ethylhexyl-4-dimethyl aminobenzoate sunscreen chemical, 193 2-ethylhexyl @-methoxy cinnamate sunscreen chemical, 193 2-ethylhexyl salicylate sunscreen chemical, 193 Ethyl @-hydroxybenzoate (EP) cosmetic preservative bactericidal effects of pigments, 83 Eumelanin hair color, 179 Extension hair fiber chlorination, 371 mechanical properties, 125 skin biophysical characterization, 171 Extinction coefficient sunscreen chemical effectiveness, 193 Fiber chlorination human, 371, keratin, 359 elastic degeneration skin microrelief, 145 formation melanin in hair, 179 hair bundle reduction, 99, changes in physical properties, 263, substantivity of conditioning polymers, 233, triboelectric charge, 341 keratin physical structure, 287, siloxane deposition, 233 mechanical properties hair in extension, 125 optic bundle erythema quantitation, 451 Flexibility human hair knot strength, 371 F!occules in emulsions ESR technique, 1 Fluidity measurement in semisolids, 1 Fluorescein hair growth marker, 77 Fluorescence skin applied dansyl chloride, 321 tracers hair growth, 77 Fluorometer stratum corneum turnover time, 321 Flyaway hair with alkylmethylamine oxide solutions, 43, substantive humectants, 353 Foam shampoos effect of alkyldimethylamine oxides, 43 Formaldehyde hair damage mechanical properties, 263 in aqueous solution, 419 Formic acid protein denaturing agent stratum corneum disruption, 21 Fourier transform infrared spectroscopy keratin oxidation hair damage, 263 poral occlusions human sweat glands, 109 Fragmentation stratum corneum, 21 Freon aerosol spray formulation efficacy of triclosan, 223 Friction chlorination keratin fibers, 359 combing forces triboelectric charge, 341 hair twist method measurements, 263 interfiber acid chlorination, 371 Furocoumarin tanning sunscreen formulation, 11 Furoxone agar supplement efficacy of triclosan, 223 Gels depilatory action thermochemical analysis, 287 emulsion paste emulsification method, 419 ESR technique networks, 1 Geometry amine oxide representation SPACEFILL, ORTEP, 43 Glands sweat aluminum chlorohydrate application, 109 Glutaraldehyde sweat gland biopsies, 109 Glyceraldehyde aqueous solution copolymerization of keratin fibers, 263 G!ycerid acid emollients polymers and lipids on stratum corneum membranes, 295 G!ycerides moisturizing properties tallow mono and di, 353 Glycerin barrier cream component skin conductivity, 63 Glycerol solvent collagen plasticization, 163 Glyceryl monothioglycolate perm lotions hair reduction, 99