Dandruff is recognised by the medical community as a light form of seborrheic dermatitis (SD). Both conditions are known to be caused by the malassezia yeast that lives on the skin. Therefore, it is reasonable to expect that shampoos with active ingredients that are effective against dandruff will also be effective against SD. The most well-known anti-dandruff shampoo is Head&Shoulders (active ingredient: Zinc Pyrithione 1%) and was discussed in a previous post. Another popular and very effective anti-dandruff, that we are going to discuss today, is Selsun (or Selsun Blue). This shampoo contains Selenium Sulfide 1% as active ingredient. Testimonials Countless users with SD across the world swear by the…