There is an enormous range of products available, from multivitamins to very specific vitamin supplements. A multivitamin should do the job. If a woman continues to experience fatigue and suspects that she may be vitamin deficient, she should consult her doctor, asking to be tested for anemia. As far as treating fatigue with herbal supplements goes, it is difficult to judge the safety and efficacy of particular herbal remedies, because of the lack of regulation and standardization of herbal products. If a woman is getting enough rest and proper nutrition, and she still feels tired, she should consult a doctor about the possible causes.
Any herbal stimulant is just that, a stimulant.
It can potentially be passed on to infants during breastfeeding. It may address the symptoms but there is a root cause for the exhaustion.