"Dandruff is a common skin condition that affects nearly half of the world’s population. Dandruff is an overpopulation of fungus which causes a higher turnover of cell reproduction and the appearance of white or grey flakes on the scalp. Dandruff isn’t the only source of high flake production; scalp psoriasis and eczema, for example, can also lead to scalp flaking. A healthy scalp constantly produces new skin cells and sheds old ones as part of its normal cycle, but an acceleration in this can lead to excess dead skin and dandruff. While stress is not a direct cause of dandruff, it can exacerbate certain triggers which result in scalp itching and flaking. This is explained further below along with pointers as to how you can manage the underlying stress, why it is vital to keep your scalp healthy and how NIOXIN can help you to maintain a balanced scalp environment.