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

SUBJECT INDEX 455 Torsion hair measurements, 87 Triacetin solubility parameter, 319 Triboelectric charging hair, 189 Tribntyrin solubility parameter, 319 Triclocarbon soap antibacterial activity, 231 Triethanolamine matrix NDELA determination, 223 solubility parameter, 319 Triethylene glycol solubility parameter, 319 Triglycerides sebum composition, 271 Tyrosine keratin amino acid analysis, 17 Trypticase soy agar soap antibacterial activity, 231 Turpentine solubility parameter, 319 Undecyl alcohol solubility parameter, 319 Uranyl acetate hair preparation for scanning transmission, 53 Urea cream imidazolidinyl, 143 emulsions occlusivity, 255 hair bleach, 61 oxidation, 363 stratum corneum plasticity, 177 UV radiation cystine disulfide bonds, 363 high performance liquid chromatography, 213, 223 Valine keratin amino acid analysis, 17 Van der waals atomic attractions solubility parameter, 319 Vapor stratum corneum sorption isotherm, 177 Vasoconstriction steroids bioactivity, 303 Velocity skin propagation, 169 Viscosity emulsions, 255 hair torsional behavior, 87 pseudoplastic suspension, 393 sedimentation, 393 skin, 169 Volatile sulfur compounds oral malodor levels of control, 297 Washing stratum corneum effects on, 349 Water allergen testing, 159 colloidal dispersions, 393 dye uptake concentration, 31 emulsions occlusivity, 255 hair disulfide bonds, 87 in cream, 143 in gels sunscreen evaluation, 125 in solution effect on steroids, 303 torsional behavior of hair, 87 resistancy of sunscreens, 125 rheology suspension, 393 skin mechanical properties, moisture, 169 solubility parameter cosmetic formulation, 319 sunscreen, 355 stratum corneum plasticity, 177 Waving bisulfate, 61 cystine disulfide bonds, 363 hair triboelectric charging, 189 torsional behavior, 87 thioglycollate, 61 Wax in cream emulsifying, bees, 143 sebum composition paraffin, 271 Weathering hair image analysis, 53 oxidation degradation, 61 Webril patch dermal safety buehler methodology, 159 Wetting cohesion solubility parameter, 319 suspension stability, 393 White mineral oil solubility parameter, 319 Wool dye uptake, 31 fiber components, 17 Xanthan gum suspensions rheology, 393 Xerosis treatment, 177 X-linked ichthyosis amino acid analysis, 17 X-ray diffraction stratum corneum cosmetic treatment, 349 Zinc chloride oral rinse control of VSC, 297 Zinc oxide suspensions flocculation, 393 Zinc pyrithion antidandruff agent, 373 Zinc stearate solubility parameter, 319 ZPT zinc pyrithion, 373