An overlooked step in haircare routine may be the reason for your frizzy and dry hair, says a hair expert while revealing an easy fix. Blowout professor’s YouTube videos are all about hair and care. He has already shown us how to avoid a ‘bad hair day’. Here’s how you can let your hair grow out while keeping it healthy. Why you should oil your hairIt’s the tips of your hair that suffer the most damage for two reasons – it is the most vulnerable part of the hair that isn’t structurally protected; the top is surrounded by cuticles and the end of the hair is also the most aged as it grows out. Ch…