400 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS Sodium lauryl sulfate as test surfactant, 105 Solids handling, 223 mixing, 223 storage, 223 measurement, by volume, 223 segregation, by vibration, 223 Solubility 369 Solutions miceliar, 285 Solvent 369 Sorption/desorption 351 Spiced-apple 199 Spironolactone treatment quantitative assessment, 317 Stanford Sleepiness Scale 199 Statistical analysis analysis of covariance, 167 analysis of variance, 167 change from baseline analysis, 167 each versus control design, 167 laterality effects, 167 logarithmic transformation of data, 167 mathematical model, 167 repeated measures, 167 round robin design, 167 split plot design, 167 test for normality, 167 use of SAS computer package, 167 Steroid 133 Stratum comeurn 379 changes induced by surfactants, 105 effects of pH changes in detergent multicomponent emulsion on the water content, 105 Substantitive collagen peptides 35 Substantivity 35 of dyes & surfacts, 1 Surface topography, 249 Surfactants 71,249, 351 treatments with, 1 tendencies of, 1 potential irritancy of, 71 mathematical index of aggressivity, 71 in vitro system to test mildness, 71 induced skin damage, 105 quantitative analysis of anionic surfactants, 309 quantitative analysis of canionic surfactants, 309 analysis of, 309 cationic, 235 Sustained attention see vigalance, 199 Stress 199 Stimulant drugs 199 Swollen miceliar solutions 235 Tannin as coupler, 45 Tensile properties 59 Ternary 369 Test panel size 167 Test precision 167 Trans epidermal water loss (TWEL) 249, 379 experiments, 299 measurement, 105 Thackray Mood Scale 199 Transportation of particle solids, 223 Triethylcitrate 159 Tri-peptides 35 UCARE © Polymer Jr 400 see polyquaternium- 10 Unilamellar !iposomes as model membrane system to study surfactant skin interactions, 71 Vigilance 199 Virgin hair 35 Viscoelasticity 249 Water loss, 249 holding, 249 TEWL, 249 Wave retention ratio 273 Waving efficiency 273 Wool 351 Workload 199 Yoshitake symptoms of fatigue scale 199 Zeolite containing metal ions, 45 Zinc glycinate 133 6sZN 133