Background And Aim: Interaction of hair with water is common. This study was conducted to compare changes in baseline strength of hair after treating it with hard water and deionized water.
Material And Methods: Hardness level of water samples collected from 10 districts of KP, Pakistan was determined, and that with maximum hardness was considered our sample hard water. Hair samples of 70 male individuals, from district with minimum hardness levels, were collected. Each hair sample was divided into three equal parts, and three groups of hair were established, each group containing 70 hairs. Group A was considered control. Group B was treated with deionized water and Group C was treated with hard water. Tensile strength of all three groups was measured using the universal testing machine and compared using paired -test.
Results: The mean age of all 70 participants were 23.87 ± 3. The mean values of tensile strength for hairs of Groups A, B, and C were 255.49, 254.84, and 234.16 with a standard deviation of 57.55, 58.74, and 56.25, respectively. Results were significant in case of hard water ( = 0.001) as compared to deionized water ( = 0.609).
Conclusion: Hard water decreases strength of hair and thus increases breakage.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6028999 | PMC |
| http://dx.doi.org/10.4103/ijt.ijt_115_16 | DOI Listing |
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