I see flakes on my hair and clothes. My scalp also feels itchy occasionally.
Normal skin replacement is about 28 days. Due to reasons such as insufficient sleep, stress, unhealthy diets, and hormonal changes, the replacement cycle (keratinisation) length shortens. This shortening of the replacement cycle results in new skin cells.
The cells generate at a faster pace than the shedding of the dead skin cells on the scalp surface. Over time, the accumulation of the dead skin cells forms dandruff that we see on your scalp. Other common causes of dandruff also include irritation and oily scalp, wrong use of hair care products, environmental and pollution factors.
Also, skin conditions like contact dermatitis, Malassezia, and others. Dandruff is a sign that your scalp is receiving bad care, and results in your hair roots weakening and more hair loss.