Is wearing hairband on baby head not advisable? Some say, it will affect the baby's head shape as baby's scalp is soft. If so what is the right age & any recommended brand?

In order to find out whether the headbands that you put on your child’s head are harming them somehow, you just have to observe their behavior. If when you place it on, they cry, get stubborn or try to take it off, then we will know that they are at least feeling uncomfortable. Another way to find out is by observing them when it comes time to sleep. If they don’t sleep well, or find it difficult to fall asleep after having those accessories on for a long period of time, this can indicate that it is having harmful effects. Choose headbands that are soft with a minimum amount of elastic and only for a small amount of time in a day. It is better to have one that constantly falls off rather than one that stays put due to contraction caused by the headband’s elastic.