786 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS Photostability, see Light Physiological availability, see Drugs, availability Pigmentation psoralen and derivatives, enhancement, humans, 403 race relation, geographic location, 329 skin mechanism, phcomclanin and eumelanin metabolism, 395 mechanism, review, 621 Pigments dihydroxyacetone analysis, following amino acid reaction in water solution, 25 Polarimetry cholesterol solutions, isopropyl myristate, solubility, 79 Polyglyeeryl esters emulsifying agents use, w/o cosmetics, 733 Polyoxyethylene 23 lauryl ether toxicity skin, stratum corneum swelling, guinea pigs, 521 Polyoxyethylene sorbitan stearate toxicity cutaneous, and ocular, rabbits, 377 Polysorbates 20 emulsions, o/w formulations, selection, 457 80 emulsions, o/w formulations, selection, 457 Povidone cosmetics effects, anti- irritant, 667 Preservatives 5-brom-5-nitro- 1,3-dioxan toxicity, and antibacterial and antifungal effects, 427 cosmetics analysis, 497 review, 3 imidazolidinyl urea lotions, cosmetics, 83 Propellant 11, see Trichloromonofluoromethane Propellants trich oromonofluoromethane stability, odors, metal containers, nitromethane stabilized blends, 765 Protein hydrolysates molecular weight cosmetics, relation, hair substantivity, 447 Psoralen and derivatives pigmentation, enhancement, humans, 403 Quaternary ammonium compounds cosmetics effects, anti-irritant, 667 hair effects, electrostatic charge, 549 Quaternium 15 analysis cosmetics, 497 Race pigmentation mechanism, review, 621 relation, geographic location, 329 Radiation ultraviolet skin, effects, connective tissue, humans, 65 Regulations, see Legislation Rheology emulsions oil-in-water, stability prediction using zeta potential, 183 Sebum differential scanning calorimetry properties, scalp lipids, humans, 317 Sensitivity, see Allergies Shampoos disodium sulfosuccinated undecylenic monoethanolamide stability, colorimetry and TLC, 343 effects lack, age related baldness, 485 vitamin E chromatography, gas, 115 Shaving preparations creams toxicity, studies, patch tests, humans, 755 Side effects, see Toxicity Silicones friction skin, in vivo, effects, 37 Skin friction in vivo, methodology, measuring technique, 37 lipids surface, sampling, frosted glass and filter paper absorption method, 211 methodology bacteria, sampling, Replipad velvet axillary skin sampler, 21 biochemistry, variations, measurement, stratum corneum, 151 pediatrics hydrogen ion concentration, effects, of sunscreen agents, 103 pigmentation mechanism, pheomelanin and eumelanin metabolism, 395 pigments melanin, formation and distribution, review, 621 radiation ultraviolet, effects, UV light, humans, 65 solvents organic, sorption, desorption, diffusion, stratum corneum, 243 surface active agents adsorption, mechanism, on keratinic proteins, 165 transmission light, factors affecting, guinea pig stratum corneum, 125 water loss, transepidermal, through occlusive films, diffusion theory analysis, 481 Soaps cloflucarban chromatography, gas, deodorant bars, 659 contamination microbiological, cosmetics, survey, 17 toxicity nails, fingers and toes, 351 triclocarban chromatography, gas, deodorant bars, 659 Sodium alkyl sulfates surface active agents adsorption, and permeability, on keratinic proteins, mechanism, 165 Sodium benzoate analysis cosmetics, 497 Sodium lauryl sulfate toxicity skin, stratum corneum swelling, guinea pigs, 521

SUBJECT INDEX 787 Solubility cholesterol isopropyl myristate, polarimetry, 79 sodium alkyl sulfates anionic, adsorption, and permeability, on keratinic proteins, mechanism, 165 surface active agents use, prediction of optimum o/w emulsification, 457 Solubilization emulsions stability, prediction of optimum o/w emulsification via solubilization measurements, 457 Solvents organic skin, sorption, desorption, diffusion, stratum corncure, 243 Sorbitan monolaurate emulsions selection, o/w formulations, 457 Sorbitan monooleate emulsions selection, o/w formulations, 457 Sorption solvents organic, stratum corncure, 243 Span 20, see Sorbitan monolaurate Spectrometry dihydroxyacetone pigments, following amino acid reaction in water solution, 25 Squalane toxicity cutaneous, and ocular, rabbits, 377 Stability disodium sulfosuccinated undecylenic monoethanolamide shampoos, colorimetry and TLC, 343 emulsions oil-in-water, prediction, using zeta potential, 183 water-in-oil, using amino acids and surfactants, 285 fluorides incompatibilities, dental abrasives, toothpastes, 681 trichloromonofluoromethane odors, in nitromethane stabilized blends, metal containers, 765 Steel containers aerosols, odors, nitromethane stabilized trichloromonofluoromethane blends, 765 Strength fingernails equipment, for measuring physical properties, 415 Structure 3-methylcyclohex-2-en- 1-ones alkyl substituted, effects, chain length on odor, 629 sodium alkyl sulfates effects, adsorption, and permeability, on keratinic proteins, mechanism, 165 Sunscreen agents contamination microbiological, cosmetics, survey, 17 effects skin, pH, pediatrics, 103 Surface active agents and amino acids gels, effects, w/o emulsion stability, 285 cosmetics effects, anti-irritant, topical preparations, review, 667 detergents toxicity, studies, effects, guinea pig stratum corncure swelling, 521 emulsions effects, colorimetry, hair bleach, 615 selection, prediciton of optimum o/w emulsification via solubilization measurements, 457 sodium alkyl sulfates adsorption, and permeability, on keratinic proteins, mechanism, 165 Surface tension hair fibers, keratin wettability measurement, 273 Talcum powders friction, skin, in vivo, effects, 37 Temperature emulsions oil-in-water, stability prediction using zeta potential, 183 Tensile strength fingernails equipment, for measuring physical properties, 415 hair fibers, in propanol-water mixtures, 695 Toluene sorption isotherms, stratum comeurn, 243 Toothpastes fluorides analysis, fluoride-aluminum separation, 705 incompatibilities, dental abrasives, 681 Topical preparations cosmetics irritation, reduction, by anti-irritant compounds, review, 667 toxicity, method for determining stinging capacity, humans, 197 depigmentation agents mechanism of action, and use, humans, 407 Toxicity see also Drugs, adverse reactions benzoyl peroxide studies, animal, and antibacterial effects, 533 5-brom-5-nitro-l,3-dioxan studies, 427 cosmetics consumers, and safety legislation, effects, industry future, 651 contamination, microbiological, product survey, 17 excipients, ocular and cutaneous reactions, rabbits, 377 irritation, topical, anti-irritant compounds, review, 667 methodology, perfume sensitizing potential, guinea pig test, 357 nails• fingers and toes, 351 skin, method for determining stinging capacity, humans, 197 skin, species variations, animals, and humans, 741 studies, patch test, humans, 755 detergents effects, guinea pig stratum corncure swelling, 521 perfumes methodology, guinea pig test for sensitization, 367 studies, methodoJogy, allergenicity testing in guinea p•gs, 53 radiation ultraviolet, effects, connective tissue, humans, 65