pH evaluation of shampoos sold in Buenos Aires City and brief review

Authors

  • María Eugenia Cappetta Center for Medical Education and Clinical Research Norberto Quirno, Autonomous City of Buenos Aires, Argentina

Keywords:

pH, shampoos

Abstract

Background: few studies analyzed the shampoos pH. Although it is not clear which is the optimal pH, evidence says it should be near 5,5.

Objectives: analyze the pH of shampoos of international and national brands. Test different products groups: professional, commercial, medical/dermatologic, antidandruff and children.

Methods: record the pH of 104 shampoos sold in Buenos Aires City with portable paper pH indicator.

Results: 41% of the shampoos tested had a pH lower than 5,5. 92% of professional products showed a pH lower than 5.5. Commercial, medical and antidandruff shampoos had very similar profile, 68%, 67% and 67% respectively showed a pH lower than 5,5. Children ́s products had lower pH than the other groups (except professional) instead of their no tear characteristic, 54% had a pH lower than 5,5.

Conclusions: although there is no clear decision of ideal shampoo pH, we know that alkaline pH associates with friction, frizz, cuticular dam-age and hair breakage. It is very relevant for dermatologist to know hair care products main characteristics.

Author Biography

  • María Eugenia Cappetta, Center for Medical Education and Clinical Research Norberto Quirno, Autonomous City of Buenos Aires, Argentina

    Doctor

References

I. Draelos Z. Shampoos, conditioners, and camouflage techni-ques. Dermatol Clin 2013;31:173-178.

II. D’Souza P, Rathi S. Shampoo and conditioners: what a derma-tologist should know? Indian J Dermatol 2015;60:248-254.

III. Sinclair RD. Healthy hair: What is it? J Investig Dermatol Symp Proc 2007;12:2-5.

IV. Robbins CR. The physical properties and cosmetic behavior of hair. En: Robbins CR, ed.Chemical and physical behavior of hu-man hair, 5th ed. New York: Springer-Verlag, 2012:299-370.

V. Gavazzoni Dias M, Munck de Almeida A, Rezende Cecato P, Adriano A, et ál. The shampoo pH can affect the hair: myth or reality? Int J Trichology 2014;6:95-99.

VI. Tarun J, Susan J, Suria J, Susan VJ, et ál. Evaluation of pH of bathing soaps and shampoos for skin and hair care. Indian J Dermatol 2014;59:442-444.

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Published

2017-03-01

Issue

Vol. 23 No. 1 (2017): January-March 2017

Section

Original Articles

License

Copyright (c) 2017 Argentine Society of Dermatology

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