"Dandruff can have several causes, including dry skin, seborrhoeic dermatitis, not cleaning/scrubbing often enough, shampooing too often, psoriasis, eczema, sensitivity to hair care products, or a yeast-like fungus. Dry skin is the most common cause of flaking dandruff." Wikipedia A great dandruff shampoo can alleviate the embarrassing flakes and help to treat the symptoms … [Read more...] about Top 5 Best Sellers Dandruff Shampoo and Treatments