460 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS Clay pigments cosmetics, 385 Clostridium tetani bacterial infection talcum powder, 435 Cloud point nonionic surfactant, 419 Cocamidopropyl betaine shampoo ingredient preservative testing, 307 Coconut ethoxylated moisturizing properties, 353 Coefficient developed skin surface microrelief, 145 friction wool shrinkage, 359, twist method, 371 Cohesion corneocytes, 21 hair set bending deformation, 125 Collagen crosslinking, 163 degradation, 353 skin structural disorganization, 145 Color hair chemical and photobleaching, 179 melanin, 353 Coloriform bacteria toothpastes, 435 Combing hair triboelectric charge, 341, surface modification, 263 Comparator stratum corneum turnover time, 321 Composites keratin fibers two phase, 125 Computer ESR signals, 1 infrared imaging efficacy of cosmetic hair treatment, 353 Concentration allantoin preservative action of skin cleansers, 353 chlorination hair, 359, 371 crosslinks collagenous material, 163 depilatory action via thermochemical analysis, 287 didecylmethylamine oxide aqueous system, 43 disulfide hair reduction rate, 99 disulfide bonds hair wet strength, 263 linalool decomposition, 385 NO2 nitrosation rate, 29 polymers on hair, 233 preservative testing shampoos, 307 sodium hypochlorite solution iodometric analysis, 371 sodium lauryl sulfate effect on skin conductivity, 63 stratum corneum percutaneous absorption, 397 transmission spectroscopy energy absorption, 247 vitamin C and vitamin E receptor solution, 333 Conditioners didecylmethylamine oxide hair, 43 effect on hair, 247 polymers adsorption on stratum corneum, 295, substantivity, 233 Quatrisoft Polymer LM-200 skin and hair, 353 Conductivity electrical effect of barrier creams on excised skin, 63 skin biophysical characterization, 171 Cooked meat medium dehydrated microbial activity, 435 Copper hair sorption measurements, 263 Corneocytes adhesion, 21 size biophysical characterization of skin, 171 Cortex hair fiber damage, 263 shrinkproofing wool, 371 Corynebacterium antiperspirants efficacy of triclosan, 223 Coryneforms bacteria efficacy of triclosan, 223 Cosmetics behenyl derivatives, 353 cell division and proliferation, 141 effects on hair growth, 77 emulsions, 353 hair treatment efficacy, 353 irritation, 153,353 lotions nitrosation rates, 29 microbial contamination, 435, preservative, 353 pigments bactericidal effects, 83, linalool decomposition, 359 polyoxyethylene emulsifier, 419 skin cleansers microbiological preservatives, 353 solvents sunscreen absorbance, 209 stability preservatives, 307 Cream barrier effect on electrical conductivity, 63 depilatory action via thermochemical analysis, 287 evaluation skinfeel approach, 443 process development technique, 353 Creep measurement crosslinking in collagen, 163 test viscoelastic behavior of semisolids, 1 Crosslinking collagen rat tail tendon, 163 fibers depilatory activity, 287 protein exocuticle structure, 263 Crystallinity polymer, 163 Cuticle hair depilatory action, 287, fiber damage, 263 structure wool shrinkage, 359 Cysteine endocuticle structure hair damage, 263 residues hair reduction, 99

SUBJECT INDEX 461 Cystein hydrochloride setting treatment extension of permed hair, 125 Cystine chlorination human hair, 371, keratin fibers, 359 cuticle structure hair damage, 263 hair chemical degradation, 141 radiolabeled hair growth rate, 77 Dansyl chloride skin fluorescence stratum corneum turnover time, 321 Decomposition linalool pigments, 385 Decyl oleate, octyl dodecanol barrier cream component skin conductivity, 63 Dehydration linalool perfumes, 385 Dehydroepiandrosterone skin penetration, 397 Dehydrogenation isopropyl alcohol, 385 Denaturation rat tail tendon crosslinking in collagen, 163 Density charge distribution hair fiber, 341 covalent crosslink hair bleaching, 263 polymers, 163 skin microrelief, 145 Deodorant effects on aerobic axillary microbial populations, 223 Depilatory activity determination thermomechanical analyzer, 287 guinea pig skin turnover time, 321 Deposition polymers hair, 233, keratin fiber treatment, 263, stratum comeum, 295 siloxanes keratin fibers, 247 Dermis chemical absorption, 397 irritation nonionic surfactants, 419 microrelief, elastic network, 145 stratum corneum adsorption, 295 Desquamation stratum corneum disruption, 21, turnover time, 321 Detergents anionic keratin fiber damage, 263 effect of barrier creams on the electrical conductivity of excised skin, 63 effect on comeocyte adhesion, 21 Dexamethasone skin penetration, 397 Diacyl chloride surface polymerization of keratin fibers, 263 Diamine aqueous solution surface polymerization of keratin fibers, 263 Dibromodienone spirolactone bromination peptide bond cleavage, 359 Dichloromethane solvent nitrosation rates, 29 Didecylmethylamine oxide (DDMAO) physical properties, 43 Diethanolamine n-nitrosation, 29 Diethanolamine p-methoxycinnamate sunscreen chemical, 193 Diethyl ether hair physical properties, 263 Diffuse reflectance infrared fourier transform spectroscopy (DRIFTS) siloxane deposition on keratin fibers, 247 Diffusion halogens keratin fibers, 359 Digalloyl trioleate sunscreen chemical, 193 Diisocyanate surface polymerization of keratin fibers, 263 Dimethyl sulfoxide protein-denaturing agent stratum corneum disruption, 21 Dioxybenzone sunscreen chemical 193, absorbance, 209 Dispersants nonionic surfactants poly(oxyethylene), 419 Distribution charge hair fibers, 341 linalool decomposition products by pigments, 385 pigment characteristics hair bleaching, 179 Disulfide crosslink reduction thioglycolate depilatories, 287 exogenous hair reduction, 99 halogenation chlorine/hair interaction, 359 sulfur hair surface, 263 Di-t-butylnitroxide (DBNO) in ESR technique, 1 Dithiodiglycolic acid ammonium thioglycolate solutions hair reduction, 99 Dl-a-tocopheroi-L-ascorbic acid sodium phosphate diester provitamin skin bioconversion, 333 D-!imonene oxide reaction over solid acids, 385 DMSO soap materials irritation, 153 Dodecyltrimethyl ammonium chloride effect on comeocyte adhesion, 21 Drag cream and lotion products skinfeel method, 443 Draize skin irritation test, 353 Dryness bar soap irritancy, 153 facial skin, 171 Dye chlorination keratin fiber interaction, 359 damage keratin fibers, 247 hair changes in physical properties, 263, coloring by melanin, 353 Dynamic relaxation tests rubber deformation, 125 Edema fluid accumulation nonionic surfactant, 419 Efficacy cosmetic hair treatment computer assisted infrared imaging, 353 depilatory preparations change with time, 287 dry skin skinfeel approach, 443 shampoo preservative stability, 307