Unisex is a term that refers to items that can be used by all genders. Unisex is often used to describe hair stylists and beauty salons that cater to both men and women. Hairstyles, also known as haircuts or hairdos, are the style of hair that is applied to hair. This includes the hairstyles on the scalp. Hair is protein-rich, so it is important to eat a healthy diet and practice good hygiene in order to maintain luscious locks.