It is best not to use slimming cream during breastfeeding, because most slimming creams contain hormones or some harmful substances, which may not cause much harm to adults, but it may cause harm to the baby as the milk enters the baby. Therefore, breast-feeding mothers are forbidden to use slimming cream, and new mothers are not advised to lose weight, because these will have bad nutrition for their babies. In fact, the best way to lose weight is breastfeeding, which saves money and trouble.