Vaseline Baby Gentle Healing Petroleum Jelly Hypoallergenic Unscented for Diaper Rash & Sensitive Skin 13 oz. Vaseline Baby Gentle Healing Petroleum Jelly Hypoallergenic Unscented for Diaper Rash & Sensitive Skin 13 oz. A baby s skin is very sensitive so the discomfort of diaper rash is never pleasant for either of you. A daily application of Vaseline Petroleum Jelly Baby keeps your baby’s skin soft and smooth and adds a protective barrier that helps prevent friction between the diaper and your baby’s skin. And that can help prevent diaper rash before it even occurs. Like the original Vaseline Jelly formulated back in 1870 our Vaseline Petroleum Jelly Baby is triple-purified to remove any impurities that could irritate your child’s skin and heals dry skin without leaving behind a greasy residue.