Scalp dryness occurs when the skin loses too much moisture or when the skin’s protective barrier is disrupted. This can cause itching, flaking, and a tight feeling.

Various factors cause dryness:

The weather, especially cold and dry air, can strip moisture from the scalp and cause dryness.
Hair care products. Some shampoos, especially those that are harsh or contain sulfates, can irritate the scalp and remove too many natural oils, leading to dryness.
Excessive washing removes the scalp’s natural protective layer and can cause dryness.
With age, the skin’s natural moisture content decreases.
Dry scalp can also be related to eczema, psoriasis, or contact dermatitis.