SUBJECT INDEX 453 Reduction hair, 189 Reflectance technique dye uptake hair, wool, 31 Relaxers hair fracture behavior, 39 Retinyl palmitate in cream, 143 Rheology sedimentation suspension, 393 Roughness skin quantitative surface analysis, 105 profilemetry measurements, 143 dermatitis, 153 Rubbing hair triboelectric charging, 189 Saccharomyces cerevisiae in vitro assay phototoxicity, 425 Salicyl artils triboelectric charging Hammet correlations, 189 Salicylic acid surface tension values, 393 Salts viscosity xanthan gum solution, 393 Sanguinaria extract control of oral malodor, 297 Sebum composition shampoo detergency, 271 Sedimentation suspension stability, 393 Serine keratin amino acid analysis, 17 Shampoo detergency, 271 hair ultrastructural changes, 53 Shear rates suspension stability, 393 Shear waves skin attenuation, 169 Silica suspensions hydrogen bonding, 393 Silica column chromatography clean-up technique NDELA determination in cosmetics, 223 Silicon skin composition surface, 287 Silver methenamine hair reduction kinetics, 75 Skin dermatitis topical properties, 153 effects of sunscreen, 125 emulsions moisture, 255 guinea pigs phototoxicity, 425 irritation, 251 mechanical properties influence of environmental and biological factors, 169 elasticity, 335 percutaneous absorption influence of depletion, 237 soap substantivity, antibacterial activity, 231 stratum corneum dryness, 177 sunscreen substantivity, 355 surface lipids, 153 quantitative analysis, 105 composition, elemental, chemical, 287 topography profilimetry, 143 Soap antibacterial activity, 231 Sodium acetate buffer solution hair reduction, triboelectric charging, 189 Sodium alpha olefin C14-C16 sulphonate surfactant shampoo, 271 Sodium borate in cream, 143 Sodium capryl sulfate solubility parameter, 319 Sodium chloride concentration dye uptake, 31 hair bleaching, 61 oxidation, 363 suspensions viscosity, flocculation, 393 Sodium citrate viscosity xanthan gum solution, 393 Sodium dodecyl surfactant, 189 Sodium dodecyl sulfate hair, 39 Sodium lactate humectant effects on emulsions, 255 stratum corneum rheological properties, 177 Sodium laureth sulfate skin lipid removal, 287 Sodium lauryl sulfate hair cleansing, 1 dye deposition, 31 skin lipid removal, 287 solubility parameter, 319 surfactant 297, shampoo, 271 Sodium 5-pyrrolidone-2-carboxylate humectant effects on emulsion, 255 Sodium stannate neutralizer, 61 Sodium stearate solubility parameter, 319 Solubility parameter cosmetic formulations, 319 Solutions ammonium hydroxide, 61 aqueous ethanol dyeing of hair, 1 nonionic surfactants, 393 aqueous hydroxy acid stratum corneum, 17 hexane soiling process, 271 humectant polyacrylic, glycerin, dimethyl sulfuxide, polyacrylic acid, 39 hydrogen peroxide, 61 lactic acid, 177 pH dye uptake, 31 sodium lauryl sulfate cleansing of hair, 1 Solvents cosmetics NDELA determination, 223 composition dye diffusion, 1 skin lipid removal, 287 solubility parameter, cosmetic formulations, 319 Sorbic acid solubility parameter, 319 Sorbitan laurate solubility parameter, 319 Sorbitan monooleate emulsions, 255 ester surfactant, 255 Sorbitan stearate in solution effect on steroids, 303 Sorbitol sedimentation density, wetting, 393 Sorption bands sulfonate linkages, 61 dansyl chloride, 125 dye absorption, desorption, 1 hair humectant-treated, 39 percutaneous depletion, 237

454 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS skin sunscreen, 125 stratum corneum rheological properties, 177 sunscreen substantivity isotherm, 355 Soybean oil stratum corneum x-ray diffraction, 349 Spermaceti sebum composition, 271 Sperm oil solubility parameter, 319 S-phase skin effects of dermatitis, 153 Spurr's resin hair preparation for scanning transmission, 53 Squalane in cream, 143 solubility parameter Squalene sebum composition, 271 solubility parameter, 319 Squamae skin geometric characteristics, 143 Stability cosmetic suspension, 393 Staphylococcus epidermidis soap, antibacterial activity, 231 Stearic acid shampoo detergency, 271 solubility parameter, 319 Stearyl alcohol solubility parameter, 319 Steralkonium chloride surfactants, 189 Steroids absorption and vasoconstriction activity influence of propylene glycol, caprylic/capric triglyceride, 303 Stratum comeurn antiperspirant action aluminum salts, 435 elastic properties, 335 lipids barrier property, 287 measurement dynamic viscosity, 169 percutaneous absorption influence of depletion, 237 rheological properties, 177 structure x-ray diffraction, 349 sunscreen protective potential, 125 substantivity, 355 Streptomycin sulfate soap antibacterial activity, 231 Stress hair, 39 Stripping sunscreen evaluation, 125 Suction dermis aging, 335 Sulfadiazine surface tension values, 393 Sulfamerazine suspensions sedimentation, 393 Sulfhydryl acid keratins crosslink cleavage, 17 Sulfonate hair bond reduction, 75 linkages oxidized hair, 61 triboelectric charging surface modifications, 189 Sulfur keratin fraction, low, high, ultrahigh, 17 skin composition surface, 287 surface tension values, 393 Sulphadimidine sedimentation suspensions, 393 Sunscreen benzalphthalide solubility parameter, 319 fluorescence protection, 125 phototoxicity, 425 substantivity, 355 Surface forces spreading coefficient, solid surface energy, tension, interfacial energy, 393 modifications triboelectric charging, 189 Surfactant anionic, 251 cationic, 189 dye uptake concentration, 31 emulsions occlusivity, ester linkage, ether linkage, 255 shampoo detergency, 271 skin lipid removal, 287 wetting stability, 393 Suspension cosmetic dispersions, physical stability, 393 Swelling keratin aqueous, 17 T-butyl alcohol solubility parameter, 319 Temperature dyes diffusion, 1 effects torsional behavior, 87 solubility parameter, 319 Tensility hair mechanical properties, 39 measurements, 87 Tension surface wetting, 393 Tetracycline phototoxicity quenching, 425 Tetradecyl surfactant, 189 Tetramethylthiuram-monosulfate in vitro assay phototoxicity, 425 Tetraukis(hydroxymethyl)-phosphonium chloride-P(CH2OH)4 + CI- hair reduction, 189 Thermal energy high performance liquid chromatography, 213,223 Thioglycolic acid hair treatment, 39 bond reduction, 75, 189 Thiol hair in dihydrolipoic acid, 75 volatile sulfur compounds, 297 8-thiooctanoic acid hair bond reduction, 75 Thixotropy sedimentation suspension, 393 Threonine keratin amino acid analysis, 17 Time dye uptake, 31 percutaneous absorption depletion, 237 skin fluorescence, 125 sunscreen substantivity, 355 suspension stability, 393 Topography skin dry, non-dry, cosmetically treated, 143