It is better not to wear makeup while breastfeeding because cosmetics contain a lot of chemical substances that can affect the baby’s health through breast milk or contact. The specific adverse effects on the baby are as follows: 1. There are more chemical components in cosmetics, some of which have excessive lead content. Long-term exposure to cosmetics containing lead will indirectly affect the baby’s intellectual development; 2, some cosmetics contain hormone-like substances, long-term exposure to the baby will appear premature sexual maturity and other situations, endangering health; 3, some cosmetics contain a lot of fragrance, these fragrances to the baby after the formation of stimulation, will cause the baby to cry phenomenon. Therefore, it is recommended to do a good job in basic skin care during breastfeeding, and try not to wear makeup. If you love beauty, you can choose cosmetics for pregnant women. If you have to wear makeup on a special occasion, you can put on a light makeup appropriately and remember to remove it in time.