514 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS Heptyl bromide Grignard reaction radiolabeled HCA, 397 Hexane sebum production measurement, 369 Hexanol membrane permeability, 297 Hexylene glycol effect on gel stability antiperspirants, 225 3H-H20 in solution surfactant irritation prediction, 199 Histidine in melanin granule, 159 Homeostasis role of skin, 351 Horny layer cleansing bars skin care potentials, 309 drug penetration evaluation photoacoustic measurement, 375 human skin effect of stripping procedure, 249 radioactivity distribution linoleic acid, 191 surfactant swelling, 125 HPLC analysis sanguinarine in oral health care products, 279 Human body odor, 409 cutaneous distribution linoleic acid, 191 hair bleaching, waving, 1:59, combing, 111, dye distribution, 59, percutaneous absorption benzoic acid, 351 skin collagen swelling, 199, percutaneous absorption, 35, permeability, 297 polydimethylsiloxanes, 73 Humectancy skin water binding capacity, 397 Humidity fluorescence enhancement cleansing bar evaluation, 309 hair combing, 111 plasticisation stratum corneum, 397 swelling, 125 Hyaluronidase solution epidermal membrane production, 35 Hydration stratum corneum, 9, 351 Hydrocarbons solubility, 502 Hydrocortisone butyrate propionate release of, 429 Hydrogen peroxide bleaching treatment, 141 Hydrolysis diamines in hair dyeing, 1 water acetal decomposition, 225 Hydrophile-lipophile balance emulsions, 502 Hydrotropes soap composition, 501 Hydroxide ion coupling reaction, 1 Hydroxycaprylic acid (HCA) plasticisation stratum corneum, 397 Hydroxypropylcellulose gel formulation component stability, 225 Hyperkeratosis in EFA-deprived animals epidermis disorder, 191 Ichthyosis transepidermal water loss, 9 Incubators biological oxygen demand cabinets 3-day mold assay, 49 Infrared spectroscopy stratum comeurn hydration, 9 In situ indo dye preparation, 1 nude rat skin permeability, 297 Intensity odorants, 409 In vitro cutaneous distribution linoleic acid, 191 hydration stratum corneum, 9 influence of surfactants skin, 387 irritancy surfactant system, 199 microbial challenge test cosmetic safety, 481 minimum inhibitory concentration test bacteriostatic activity, 99 percutaneous absorption, 35,297 plasticisation 2-hydroxyoctanoic acid, 397 release of salicylic acid ointment bases, 429 roughness of enamel surfaces dentrifice treatment, 211 In vivo agar patch test soap bars, 99 benzoic acid relationship between transepidermal water loss and percutaneous absorption, 351 cutaneous distribution linoleic acid, 191 fourier transform infrared spectroscopy quantitation of polydimethylsiloxanes, 73 hydration stratum corneum, 9 irritancy skin, 387 surfactant systems, 199 percutaneous absorption, 297 roughness of enamel surface dentrifice treatment, 211 suffactants irritancy, 125 tensile stress hair removal, 461 ultraviolet absorption photoacoustic spectroscopy, 375 Ion binding swelling mechanism, 125 chromatograms nitrosamine analyses, 267 polymers emulsion formulation, 329 Irritancy skin detergents, soap, 89, lysosomal acid phosphatase, 387, surfactant swelling, 125, transepidermal water loss, 9 soap bars reflectance meter, 475 surfactant bars, soaps, 309 swelling collagen film, 199 Isomer alpha glycyrrhizin physicochemical properties, 177

SUBJECT INDEX 515 Isopropanol effect on gel stability antiperspirants, 225 Keratin henna, 359 stratum corneum hydration, 9 Kinetics coupling reactions N,N-bis-(2-hydroxy- ethyl)-p-phenylenediamine, 1 dibenzylidene sorbitol condensation reaction, 225 dye hair, 59 hair reduction single-fiber method, 461 stratum corneum uptake, 249 water uptake, 9 Lactic acid penetration stratum corneum, 249 LAMBDA-SCAN microscope spectrophotometer software program, 59 Lanolin cosmetic base formulation skin penetration, 249 soap composition, 89 Lauroyldiethanolamide shampoo base mold assay, 49 Lauryl dimethyl amino oxide surfactant swelling, 125 Lawsone absorption bleached wool felt, 359 Levelling dye hair, 59 Licorice root extract beta-glycyrrhizin in cosmetics, 159 Light photometric normal, monochromatic, 59 reflectance dentrifice treatment variable, 211 Linear dodecylbenzenesulfonate (LAS) surfactant irritation collagen swelling, 199 Linoleic acid cutaneous distribution in vivo, 191 Lipid analysis sebum secretion, 369 partitioning sensitivity animal models, 297 stratum corneum hydration, 9 Lipometer sebum production analysis, 369 Lipophilic molecules absorption of, 35 Lithium bromide skin flexibility, 397 Lotions microbial challenge test, 481 Lubricants hair manageability, 489 Lysine in melanin granule, 159 oil-in-water emulsions stability, 329 Magnesium mold assay, 49 soap composition tallowate, 89, silicate, 99 Magnesium lauryl sulfate surfactant swelling, 125 Magnesium sulfate effect on gel stability antiperspirant, 225 Manageability hair style arrangement, style retention, flyaway, 489 Mascara in mold assay, 49 microbial challenge test, 481 Measurements epidermis extensability, penetration, sorption, 397 erythema reflectance meters, 475 hair combing forces, 111, style arrangement manageability, 489 impedance stratum comeurn, 9 sebum secretion man, 369 skin profile, surface, 309 transepidermal water loss (TWL) ventilated, unventilated, 9 ultraviolet absorption skin, 375 Melanin hair bleaching, 159 Melting points paraben solvents, 429 Membrane epidermal preparation, 35 permeability model assessment, 297 Methanol in plate preparation soap finsability, 89 membrane permeability, 297 Methenamine antiperspirant formulation stability, 225 Methodology agar patch test evaluation of bacteriostatic activity, 99 analysis of covariance swelling of stratum comeurn, 125 application of linoleic acid emulsion single, iterative, distribution studies, 191 C-NMR properties of alpha and beta glycyrrhizins, 177 combability dry hair, wet hair, 489 double comb method hair, 111 dye formulations, 1 elbow washing test surfactant irritancy, 387 electron microscopes roughness of enamel surfaces, 211 Finn chamber test cleansing bare evaluation, 309 gas chromatography with thermal energy analyzer nitrosamine responses, 267 guinea pig immersion procedure surfactant irritation, 199 high-performance liquid chromatography (HPLC) quantitative analysis of sanguinarine, 279 Hunterlab colorimeter absorption by bleached wool felt, 359 in vitro water content, 9, penetration rates of lipophilic molecules, 35