There are many different Common Causes of Dandruff . Some people think that dry scalp is one of the reasons of the emergence of dandruff, but this is not always true. Oily scalp can be a equally big factor for dandruff. Oil forms a layer on the scalp, which thickens when dried and then causes dandruff. Other factors include cold weather, use of hair products, diet, stress, hormones and so on. Some of the causes are explained below.This is the most common cause of dandruff. Melessezia furfur (also known as Pityrosporum Ovale) is a fungus that causes dandruff, and tends to multiply due to imbalances in the production of sebum (natural oils) in the skin, often caused by harsh shampoos and conditioners, stress, or harsh weather conditions. So while this fungus causes the visible signs of dandruff, it can itself be aggravated by other causes and changes in your internal health.

Majority of dandruff problems occur in people who have dry skin. The flaky skin becomes prominent especially when the weather is very cold or extremely hot. People who have dry skin tend to have dry dandruff, not oily. Insufficient shampooing causes buildup of dead skin cells and oil, which eventually cause dandruff. If you fail to brush or comb your hair regularly you will find that the production of dandruff increases on your scalp. Combing the hair aids the scalp to shed the dead flakes and if you fail to do so the environment will become all the more conducive. Another cause of dandruff is yeast. Certain people have a sensitivity to yeast which keeps them at a higher risk of developing dandruff. During the summer, people sensitive to yeast feel that their dandruff gets much better and gets worse during the winter. People with seborrheic dermatitis are very likely to develop dandruff in their scalp as well as which other various areas of the skin. This skin disease also affects the eyebrows, nose ears and so on.Seborrheic Dermatitis is one of the most common causes of dandruff &  is characterised by scaly flakes as well as an abundance of grease on the skin. Seborrheic Dermatitis is a type of fungus that normally lives on the human skin and feeds on skin oils. Whilst we all have a certain amount of the malassezia fungus on our scalps, dandruff is not caused due solely to this fungus, however a bad response to the fungus to the fungus is very likely causing dandruff.

Also, many people do not realize that the shampoo and conditioner you use to remove your dandruff will have to be used constantly. If you do stop using it, it is more than likely that the dandruff will come back.If you cannot find a suitable dandruff shampoo, then it is best to remember that the milder the shampoo and conditioner, the better. Detergent based shampoos may cleanse the scalp really well; however they will often make the scalp dry and even itchier than it already is. So, always go for a mild shampoo.

If you can find it, the best shampoo to actually go for is Nizoral. This particular shampoo is designed specially to defeat dandruff and is the most advanced formula available today. It will be more expensive, but you will find it better than any other shampoo which you have already tried.You can also try rubbing a bit of jojoba oil on the scalp after shower. Neem oil is also great for the scalp. For better enhanced care for your scalp, you can mix some essential oil such as sage and rosemary oil with jojoba oil and apply the mixture to the scalp.