Objective: This study explores the applicability and scientific accuracy of instrument measurements in repairing hair products on slightly damaged hair bundles.
Materials and method: Sixty hair bundles mildly damaged with hydrogen peroxide and ammonia standards were divided into two groups: the treatment and control groups (30 hair bundles each).
The treatment group used commercial hair care essential oil, whereas the control group used tap water to treat the damage.
The two groups were measured using an instrument before and after the product application.
The objective indicators included the gloss of hair, along with hair cuticle dynamic friction coefficient, and against hair cuticle dynamic friction coefficient.
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