Babies have different skin care needs than adult because their skin is immature (more delicate, sensitive, thinner and more permeable). At birth, babies' skin is nearly perfectly pH neutral, whereas adult skin is more acidic. These differences mean that products adapted to the needs of young skin will promote comfort and strength of your child's skin as it develops. Mustela prides itself on a long history of development of products for the unique needs of both normal skin and skin with atopic tendencies.