I am losing so much hair now and I am getting desperate! I've read that Biotin supplements helps with hair loss but is it safe to take while breastfeeding AND taking prenatals? The biotin in the prenatal is only 35mcg but the OTC biotin I purchased is 1,000 mcg (they even sell 5,000 mcg!). Has anyone taken it while breastfeeding? If so, what dosage?