468 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS corneocytes cell-to-cell adhesion, 21 surface human hair, 263,371 Mouse skin provitamin bioconversion, 333, electrical conductivity, 63 Mouthwash microbial content, 435 Mylar uncrosslinked, 163 Myrcene dehydrated linalool decomposition, 385 NaCI phenolic hydrogen replacement H-NMR spectroscopy, 83 skin conductivity, 63 N-chloro compounds, 359 N-dodecyl N,N-dimethylamine acetic acid effect on corneocyte adhesion, 21 Negroid hair damage grooming procedures, 263 Networks ESR technique in gels, 1 N-hexane linalool decomposition, 385 NH4OH hair bleaching solution pH adjustment, 179 Nicotinic acid percutaneous absorption stratum corneum, 397 Ninhydrin hair damage mechanical properties, 263 Nitrite reaction with chloroform n- nitrosodiethanolamine formation, 29 Nitrogen aluminum chlorohydrate binding sweat gland inhibition, 109 dioxide n-nitrosation, 29 hair fiber spectra polymers, 233 linalool decomposition, 385 spectrum untreated skin, 295 Nitrosamines in cosmetics, 29 Nitrosation minimization, 29 N,N-dimethylaminoethyl methacrylate copolymerization keratin fibers, 263 N-dimethyldodecylamine oxide (C•2DMAO) effect on comeocyte adhesion, 21 N-nitrosation diethanolamine triethanolamine systems, 29 N-nitrosodiethanolamine (NDELA) analysis by high performance liquid chromatography/ thermal energy analyzer, 29 Nonaqueous n-nitrosodiethanolamine minimization, 29 Nonionic detergents Triton X- 100, 21 surfactants polymers on hair, 233, solution behavior, 419 Nutrient availability shampoo preservative activity, 307 Nutrition human diet, 141 Nylon comb effect triboelectric charging of hair, 341 Occlusivity skin turnover time dansyl chloride, 321 sweat gland inhibition aluminum chlorohydrate application, 109 Ocimene dehydrated linalool decomposition, 385 Octylcyano diphenylacrylate sunscreen chemical absorption, 209 Octyl dimethyl PABA sunscreen chemical absorption, 209 Octyl-p-methoxycinnamate sunscreen chemical absorption, 209 Octyl salicylate sunscreen chemical absorption, 209 Odor deteriorated cosmetics p-cymene, 385 Oil bergamot sunscreen formulation, 11 emollients castor, 295, mineral, 295 hair surface charge generation, 341 mineral effect on skin conductivity, 63, ultraviolet absorbance of sunscreens, 209 olive soil tolerance of shampoos, 43 paste emulsification method, 419 water formulations skin care products, 443 Ointment base ESR technique for fluidity measurement, 1 Oleic acid emollients polymers and lipids on stratum corneum membrane, 295 Olfactory evaluation of skin odors topical deodorant products, 223 Organic conditioning agents keratin fibers, 247 Ortho sunscreen chemicals, 209 Oscillatory technique viscoelasticity semisolids, 1 Oxidation amine oxides with hydrogen peroxide, 43 damage keratin fibers, 247,263 enzyme eumelanin formation, 179 extension of permed hair, 125 role of vitamin C bioconversion, 333 Oxonium ion linalool decomposition cosmetic pigments, 385 Oxybenzone sunscreen chemical, 193, absorbance, 209 Oxygen hair treatment with cellulosic polymers, 233 spectrum untreated skin, 295 uptake cell proliferation, 141 P-aminobenzoic acid (PABA) sunscreen chemical, 193, absorbance, 209 Parabenzoquinone crosslinking in collagen, 163 Paraffin barrier cream component skin conductivity, 63 liquid water systems emulsion, 419 white soft stratum corneum turnover time, 321 Paste emulsification method oils, 419 P-cymene linalool decomposition pigments, 385

SUBJECT INDEX 469 Peak fitting analysis hair samples, 233 Pearson coefficient irritation by soaps, 153 Peptides halogenation chlorine/hair interaction, 359 Percutaneous absorption drugs, 333, stratum corneum, 397 Perdeuteroacetone methyl p-hydroxybenzoate measurement, 83 Perfumes pigment/linalool reaction, 385 Permeability skin provitamin bioconversion, 333 stratum corneum, 397 Perming lotion hair reduction, 99 Petrolatum ESR signals DBNO, 1 white effect on electrical conductivity of skin, 63 pH aqueous mixture hair waving, 99 chlorination human hair, 371 depilatory action, 287 didecylmethylamine oxide in shampoos and conditioners, 43 effect of chlorination on hair, 353 effect on nitrosation, 29 hair bleaching solution, 179, effect on swelling measurement, 263 preservative action shampoo, 307 reaction medium halogen/fiber reaction, 359 reaction mixtures interactions of cosmetic pigments with preservatives, 83 sunscreening chemicals, 193 Phase diagram hydrophilic-lipophilic balance ternary nonionic surfactant/oil/water systems, 419 Phenol antimicrobial activity mouthwash, 435 2-phenylbenzimidizole-5-sulfonic acid sunscreen chemical, 193 phenylisocyanate hair damage mechanical properties, 263 Pheomelanin hair coloring, 179 Phospholipids personal care applications, 353 Phosphorus spectrum untreated skin, 295 Phototoxicity bergamot oil-containing sunscreen, 11 P-hydroxybenzoic acid esters bactericidal activities, 83 Physical blockers sunscreens, 193 Physical properties alkyldimethylamine oxides, 43 hair fiber damage, 263 human hair chlorination, 353,371, siloxane deposition, 247 keratin fibers chlorination, 359 polymeric materials crosslinking, 163 structure keratin fiber, 287 Pigs guinea hair growth rate, 77 skintanning ultraviolet radiation, 11 Pigmentation cosmetics bactericidal effects, 83 effect of sunscreen psoralen product, 11 linalool reaction perfumes, 385 2-pinene isomerization perfumes, 385 pKa alkyldimethylamine oxide, 43 Plasticization temperature depression collagen, 163 Polarity solvents effect on absorption data of sunscreens, 193, nitrosation of TEAM-stearate mixtures, 29, sunscreen efficacy, 209 Polycarbonate comb effects triboelectric charging of hair, 341 Polyethylene comb effect triboelectric charging of hair, 341 uncrosslinked, 163 Polyethylene glycol (PEG) base signals, 1 ointment base electroconductivity of skin, 63 solvent sunscreen chemical, 209 Polyglyceryl fatty acid esters emulsifier in cosmetics, 419 Polymers adsorption stratum corneum membranes, 295 AQ polymer dispersant for hydrophobic material, 353 hair electron spectroscopy for chemical analysis, 233, surface modification, 341, uptake, 263 siloxane deposition on keratins, 247 Polymeric material covalent crosslinks, 163 Polymerization hair treatment, 263 propylene oxide pigments, 385 Poly(oxyethylene) alkyl ether nonionic surfactants cosmetics, 419 Polyoxyethylene dodecyl ether effect on corneocyte adhesion, 21 Polyoxyethylene sorbital lanolin barrier cream component skin conductivity, 63 Poly(oxytetramethylene) poly(glyceryl) alkyl ether synthesized copolymers as emulsifiers, 419 Polypropylene uncrosslinked, 163 Polyquaternium aqueous solution hair treatment, 233 Polysiloxanes conditioning agent, 247 Polysorbate 20 shampoo ingredient preservative testing, 307 Porous sweat gland inhibition, 109 Potassium hydroxide barrier cream component skin conductivity, 63 Preservatives anionic skin cleansers, 353 bactericidal activities effects of cosmetic