Latisse is listed as "Safety Unknown" with regards to lactation. This means that there is inadequate literature available to assess risk; caution is advised. This basically translates to the fact that no one has ever done a study (or likely ever will) to see if the chemical compound is present in breastmilk or if there are any adverse effects of it if it were present. In these cases, I always advise that it is better to be safe than sorry and I would not use the product while breastfeeding. Hope this helps.
Thank you for your question.No, do not use Latisse while pregnant or breastfeeding.To be sure, see two or more board-certified providers in your area for a complete evaluation.I hope this helps.