352 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS REFERENCES (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (12) (13) (14) (15) (16) (17) (18) (19) (20) (21) F. R. Bettley and E. Donoghue, Effect of soap on the diffusion of water through isolated human epi- dermis, Nature, 185, 17 (1960). F. R. Bettley, The influence of soap on the permeability of the epidermis, Brit. J. Dermatol., 73, 448 (1961). F. R. Bettley, Irritant effect of soap in relation to epidermal permeability, Brit. J. DermatoL, 75, 113 (1963). F. R. Bettley, Influence of detergents and surfactants on epidermal permeability, Brit. J. Dermatol, 77, 98 (1965). R. Scheuplein and L. Ross, Effects of surfactants and solvents on the permeability of epidermis, J. Soc. Cosmet. Chem., 21,853 (1970). G. Kiss and I. Horvath, Die wirkung des natriumlaurylsulfats auf die penetration yon electrolytes in die haut, J. Soc. Cosmet. Chem., 23,803 (1972). I. H. Blank and E. Gould, Penetration of anionic surfactants into skin, J. Invest. Dermatol, 33, 327 (1959). I. H. Blank, E. Gould and A. Theobald, Penetration of cationic surfactants intoi•skin, J. Invest. DermatoL, 42,363 (1964). J. Scala, D. E. McOsker and H. H. Reller, The percutaneous absorption of ionic surfactants, J. Invest. Dermatol., 50, 371 (1968). D. Howes, Percutaneous absorption of some anionic surfactants, J. Soc. Cosmet. Chem., 26, 47 (1975). J. A. Faucher, E. D. Goddard, R. B. Hannah and A.M. Kligman, Protection of the skin by a cationic cellulose polymer, Cosmetics and Toiletries, 92 (6), 39 ( 1977). D. E. Loveday, An in-vitro method for studying percutaneous absorption, J. Soc, Cosmet. Chem., 12,224 (1961). F. W. Stone andJ. M. Rutherford, U.S. Patent No. 3472840 (1969). For a derivation from Fick's first law see A. J. Aguiar and M. A. Weiner, Percutaneous absorption studies of chloramphenicol solutions, J. Pharm. Sci., 58, 210 (1969). R.J. Scheuplein, Mechanism of percutaneous absorption, J. Invest. Dermatol., 45,334 (1965). E. J. Singer, P. C. Wegmann, M. D. Lehman, M. S. Christensen and L.J. ¾inson, Barrier development, ultrastructure and sulfhydryl content of the fetal epidermis, J. Soc. Cosmet. Chem., 22, 119 (1971). J. A. Faucher and E. D. Goddard, Sorption of a cationic polymer by stratum corneum, J. Soc. Cosmet. Chem., 27, 543 (1976). R. J. Scheuplein and I. H. Blank, Permeability of the skin, Physiol. Rev., 51,702 (1971). M. Abu-Hamdiyyah and K. J. Mysels, The dialysis of sodium dodecyl sulfate, J. Phys. Chem., 71,418 (1967). E. D. Goddard, T. S. Phillips and R. B. Harman, Water soluble polymer-surfactant interaction, J. Soc. Cosmet. Chem., 26, 461 (1975). E. F. Paschall, "Production and Uses of Cationic Starches" in Starch, Chemistry and Technology, Vol. II, R. L. Whistler and E. F. Paschall, Eds., Academic Press, Inc., New York, New York, 1967, Chapter 16.