Keep your scalp protected from the sun
Wearing a hat when going out in hot weather can prevent moisture from leaving your scalp and hair, thus avoiding additional dryness. It can also protect you from UV radiation, which can cause skin and hair damage, as well as sunburns with overexposure.
Eat a healthy, well-balanced diet
Providing all the nutrients your hair and scalp need are a good way to keep them healthy. Keeping a restrictive diet can deprive you of essential fatty acids (e.g. omega 3, omega 6), and can lead to vitamin and nutrient deficiencies (e.g. vitamin B, C, E, zinc or selenium for hair) that can affect your scalp health.
Consuming an excessive amount of sugar or alcohol can cause inflammation in your body, while too much alcohol can dehydrate you, drying out your scalp. Dehydration and hair loss may also be linked, so it’s important to drink plenty of water to keep your hair and body healthy.
Avoid heat styling
Frequently applying significant heat to your scalp and hair, whether it is for styling purposes or simply to blow dry them, can cause scalp flaking, itching and irritation. And if you are already predisposed to experiencing a dry scalp, due to a dermatological condition, genes, or hormones, additional moisture loss from constant exposure to heat can exacerbate your problem
Reduce smoking
While you might have heard that smoking can cause hair loss, you may not be aware that it can also cause scalp dryness [28]. That is because it causes your blood vessels to shrink, leading to less nutrients reaching your scalp to keep it healthy. Furthermore, it also affects your skin barrier function, making it more difficult for your scalp to retain moisture and at the same time, it creates inflammation in your body that can dry out your skin.