... elasticity, oil, blackheads, and freckles1. Analysis of the skin (oily, dry, neutral), and nutritional status of damaged hair 2. With software, easy ... gathered into a patchy 2.200X lens: detection of the nature of hair and daily show symptoms, such as hair ... bacterial infection.Healthy hair testing Description: 1. the health characteristics of hair: black, soft, smooth and shiny 2. Damage to ...