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This study evaluated the performance of five oils and three butters extracted from Brazilian plants with different fatty chain composition on hair mechanical properties, split end formation, combing analysis and gloss measurements. Oil treatment reduced the combing force percentage for wet conditions. However, the hair treated with butters showed poor combing. Except for ucuúba butter, oils and butters used in this work had generally no influence on hair tensile properties. In general, hair treated with oils showed a significant gloss increase and a decrease for split end formation. The fatty acid composition of the oils and butters tested showed an effect on the physicochemical properties of hair.
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Fregonesi et al. (2010) studied this question.
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