No, hygiene is not a factor in the appearance of cradle cap. It is due to the excessive secretion of sebum and sweat and to the proliferation of a microscopic fungus on the surface of the skin (symptoms linked to the transfer of maternal hormones to the baby at the end of pregnancy). If your baby has cradle cap, we advise you to wash their hair with a specific shampoo such as the Foam Shampoo For Newborns: this skin care product encourages the elimination of cradle cap and limits its reappearance by acting directly on its causes. If you would like to find out more about cradle cap, please consult our advice section.