At this point, {{ PRONOUN_BABY }} is developing something called the vernix caseosa, which is a waxy substance that will cover and protect baby’s delicate skin in the womb. New wrinkles and skin folds are shown here by careful placement of shadows and highlights that coordinate with the direction of light hitting the body.
![](https://assets.oviahealth.com/wp-content/uploads/2023/12/article_109205_week-19_s_640_533.jpg)