References

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Jacobi, O. and H. Heinrich, 1954. The acid mantle of the skin. Proceedings Science Sector of Toilet Goods Association, 21, 6.

Jass, H.E., 1967. Droplet sizes an indication of emulsion stability. J. Soc. Cosmetic Chem., 18: 591-591.

Paqut, C. and A. Hautfenne, 1987. Standard Methods for Analysis of Oils Fats and Derivatives. 7th Edn., Oxford Blackwell Scientific Publishers, London, pp: 157-161.

Rieger, M., 1989. The apparent pH on the skin: Careful quantitative chemical measurements are needed to draw conclusions of this acid/base phenomenon. Cosmet. Toiletries, 104: 53-60.
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Royal Society of Chemistry, 1999. Contributions of oil-phase viscosity to the stability of oil in water emulsions, Food emulsions and stability. Proceedings of a Conference, March 16-18, Servile, Spain, pp: 81-90.

Sherman, P., 1971. Stability tests in emulsion production. Soap Perfume Cosmetics, 45: 693-693.

Wickett, R. and C.H. Trobaugh, 1990. Personal care products: Effects on skin surface pH. Cosmetics Toiletries, 105: 41-44.