5 18 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS 2-Phenyl-benzimidazole-5-sulfonic acid sunscreening agent photoacoustic measurement, 375 Phosphate buffer surfactant treatment, 199 mold assay, 49 Phosphorescence quenching tryptophan, 309 Photoacoustic spectroscopy absorption biological tissues, 375 stratum comeurn hydration, 9 Photography tinsability soap, detergent, 89 Photomicrography emulsion stability analysis, 329 Physiochemical properties beta glycyrrhizin, alpha-glycyrrhizins, 177 pKa aminoindamine dyes stability, I Plantar callus water flux in vitro, 9 Plaque toothpaste cleaning, 211 Plasticisation stratum corneum 2- hydroxyoctanoic acid, 397 P-nitrophenyl phosphate stratum corneum acid phosphatase activity, 387 Polishing value enamel roughness dentrifice treatment, 211 Poloxamer gel formulation component antiperspirant, 225 oral rinse formulation sanguinarine analysis, 279 Polydimethylsiloxane human skin quantification of, 73 membranes percutaneous absorption, 429 Polyethylene glycol effect on benzocaine permeation, 429 Polymers fibers dyestuff concentration, 59 influence on emulsion stability, 329 physical properties in personal care products, 73 Polysaccharide xanthan gum, 329 Polysorbate cosmetic base formulation skin penetration, 249 oral rinse composition sanguinarine analysis, 279 Pomade hair treatment assembly characteristics, 141, manageability, 489 Pore patterns sebaceous secretion, 369 Potassium mold assay, 49 soap composition lauryl sulfate, 89, tallowate, cocoate, 99 Potassium ferricyanide indo dye preparation, 1 Potassium persulfate bleaching treatment, 141 P-phenylenediamine coupling reaction, 1 Preservatives cosmetic efficacy, 481 mold assay benzoic acid, sorbic acid, methyl paraben, alcohols, glycols, 49 soap composition, 99 Primary intermediate N,N-bis-(2-hydroxy- ethyl)-p-phenylenediamine, 1 Prism skin contact using infrared spectroscopy Ge, ZnSe, 73 Proline in melanin granules, 159 Propylene glycol cosmetic base formulation skin penetration, 249 effect on benzocaine permeation, 429 hair reduction, 461 Propylparaben emulsion component stabilization, 329 solvent permeability polydimethylsiloxane membrane, 429 Propyl-p-hydroxylbenzoate reagent emulsion stabilization, 329 Proteins cleansing bar evaluation skin surface adsorption, 309 denaturation skin irritancy, 387 pellicles, 21 l structure effects of hair bleaching, 159 substrates surfactant swelling, 199 Pseudomonas preservative activity cosmetic products, 481 Pseudomonas aeruginosa mold assay, 49 Psoriasis transepidermal water loss, 9 Psychographic sensory segmentation fragrance preference, 233 Qualitative percutaneous skin absorption transcellular intracellular, appendageal, 249, vs. transepidermal water loss, 351 skin surface analysis attenuated total reflectance, 73 Quantitative combing force, work, 141, style arrangement manageability, 489 gums stabilization of oil-in-water emulsions, 329 methodology swelling, 199 polydimethylsiloxane human skin, 73 sorption anionic surfactants at skin surface, 309 water content stratum corneum, 9 Quaternaries preservative in mold assay, 49 Quaternary ammonium salts in cosmetic products nitrosamine precursor, 267 Radioactivity measurement liquid scintillation spectrometer, 199, 249, percutaneous absorption, 375

SUBJECT INDEX 519 skin emulsion with linoleic acid, 191 Radiolabeled agents penetration human skin, 249 tooth enamel abrasion values, 2l l Rat hairless cutaneous distribution of linoleic acid, 191 nude skin permeability, 297 skin epidermal sheet preparation, 35 Reactant hair dye N,N-bis-(2-hydroxy- ethyl)-p-phenylenediamine, 1 Reflectance Fourier transform infrared spectroscopy skin, 73 spectrophotometry hair color, 59 RH water loss stratum corneum, 9 Rheology emulsion stabilization gums, 329 measurements flow curves, shear rate, sweep time, viscosity, 177 Rhizomes sanguarine analysis HPLC, 279 Rhodamine B cationic dye skin surface charge, 309 Rinsability soap, detergent bar, 89 Rosin soap composition, 89 Roughness enamel surface dentrifice treatment, 211 skin surface, 309 Safety cosmetic ingredients, 249 Salicylic acid ointment bases in vitro release, 429 Saline permeation procedure nude rat skin, 297 Salts effect on xanthan gum solution, 329 hydration stratum corneum, 9 hydrophile-lipophile balance emulsions, 502 in solid antiperspirant formulations acid, neutral, basic, 225 monammonium properties of alpha and beta glycyrrhizins, 177 stratum comeurn swelling lauryl sulfate, 125 Sanguinarine HPLC analysis oral health care products, 279 Saponification soap manufacture methods, 501 Saturation collagen swelling surfactant irritation, 199 swelling, 125 Scalp dermatoses 395 Scanning electron microscopy methodology properties of alpha- and beta-glycyrrhizin s, 177 Scratching value enamel roughness dentrifice treatment, 211 Sebaceous gland cutaneous distribution linoleic distribution, 191 Sebum human production, 369 Sebum lipids hair, 159 Sebutape sebaceous secretion measurement of, 369 Sedimentation emulsion, 329 Segmentation sensory fragrance, 233 Sensory segmentation preferences, 233 sequestrants soap composition, 501 Serine concentration cleansing bar evaluation, 309 in melanin granules, 1259 Serratia marcescens mold assay, 49 Sex attribution body odor, 409 Shampoo batch process quality assurance, 445 benzoic acid, 49 evaluation of, 395 hair assembly characteristics, 141 mold assays base, sodium lauryl sulfate, lauroyldiethanolamide (LDA), phosphoric acid, 49 nitrosamine analysis, 267 Shaving cream in mold assay, 49 Shear xanthan gum solution, 329 Silica filler in polydimethylsiloxane membranes, 429 sanguinarine analysis, 279 toothpaste composition, 211 Silicone in skin care formulations, 73 Skin deposition of triclocarban soap bars, 99 epidermal membrane preparation, 35 erythema quantitation, 475 hairless rat cutaneous distribution of linoleic acid, 191 homeostasis water loss, percutaneous absorption, 351 hydration, 9 irritancy lysosomal acid phosphatase, 309, soap, 89, surfactant exposure, 199 permeation, 297 plasticisation, 397 polydimethylsiloxanes quantification of, 73 radiolabeled cosmetic ingredients safety, effectiveness, 249 soap efficacy, 309 solvent interaction, 429 Smell sensory segmentation, 233 Soap agar patch test triclocarban, 99 chamber patch test erythema