What are the pros and cons for the effect of shampoos on the tensile strength of hair??

The easiest way to answer the question is to contact a shampoo manufacturing company and talk to a scientist in the product development/testing department. (try several companies, like Lor茅al or Revlon, Est茅e Lauder, etc., check the net as it will give you an 800 number for any of them). Second best is to contact the dermatology department at the nearest medical school or teaching hospital. The third best is to test it yourself. The fourth is for me to take an educated guess. Hair is primarily, made form the organic polymer keratin. Detergents should not affect keratin, as it is a protein. Unless the oils and sebum that coats hair somehow gives the hair tensile strength. Which I doubt highly. Detergents affect fats and oils by attaching to them at one end of the molecule and the other end is attracted to water molecules, which lifts the oils and into the wash water and they are rinsed away. Detergents can rupture cell walls but keratin is non-living material %26amp; is unaffected by such lysis.


Hope that helps.


Doc. Dan.What are the pros and cons for the effect of shampoos on the tensile strength of hair??
Wonderful. I'm glad to help.


Happy Holidays.


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