Residue buildup is caused by constantly using hair care products such as shampoos, conditioners, gels, waxes, hair polishes and sprays. These products combined with excess oil and dirt on the scalp, can cause clogged hair cuticles, which may lead to dry and brittle hair. It also makes hair dull, greasy, feel heavy and difficult to manage because residue buildup prevents your roots from absorbing nutrients.
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