Does Biotin harm the kidneys

We don't have much information on Biotin re: the kidneys, but I can offer you the NIH page if that helps at all: https://ods.od.nih.gov/factsheets/Biotin-Consumer/ It might, at least, give you a place to start your information hunt. Also, if any of our community members have experience with it they should chime in! Let us know if there's anything else we can help with! Keep on keepin' on, DPM