Once your hair has been blow dried, your hair stylist will apply a smoothing solution or keratin-based solution to your hair. The main difference between these solutions is that keratin is a naturally occurring protein in our hair and it is replenished during the treatment for healthy, silky hair. .A milk and honey can make hair softer. Milk has long been known to not be just healthy for your body, but also healthy for your skin, your hair and even your eyes. Healthy hair begins from the inside out, so a diet rich in protein and antioxidants will help you to have shiny, healthy hair.