I suggest you not use it. Most of the so-called slimming essences contain hormones. The so-called natural plant extraction is often just an advertising gimmick. On the other hand, even without any hormones, these things can reduce the fat content in your body (provided they are effective! ), it is not good for the baby's development. If not, you don't have to take these things! If you want to keep fit during breastfeeding, I suggest you do aerobic exercise properly, which is very meaningful for yourself and your baby.