When it comes to scents, I will always choose a good essential oil based products over the artificial ones because they are therapeutic. The reason why our customers love our scents is we use pure essential oils. Washing your hair regularly will encourage a good smell on the hair and scalp also. Accumulating too much dirt on the scalp especially with everything going on around us in the environment can turn into fungal issue as they like accumulating in dirt and humid temperatures.
So don't let the extensions, weaves and wigs or any other protective style stay on your head for so many weeks without washing, proper care or neglect. If you are experiencing that itchiness on the scalp, I would recommend giving these things a break and giving attention to treat your scalp.