Thinner than adults’ skin, baby’s skin is in constant development: the skin barrier is incomplete at birth, and does not reach its first stage of maturity until the age of two. Between the ages of 0 and 2 years, the skin is unable to maintain a good level of hydration which is key for its cells to be able to work properly. As a result, your baby’s skin cannot act as a fully protective barrier, and is highly vulnerable to everyday stressors.Mustela’s researchers have also revealed that the skin of a newborn has a surprising source of strength: a unique, lifelong cellular reserve that is at its maximum at birth, yet remains vulnerable during the first few years of life. These original cells play a major role for the skin: they ensure that the skin is able to regenerate and are responsible for maintaining its overall balance against everyday stressors. To preserve this unique cellular richness and to support its development, baby’s skin absolutely needs to be reinforced and protected on a daily basis by using appropriate skin care products.