“Natural” does not mean risk-free. Botanical nootropics can interact with medications. For NeuroRecall specifically: Ginkgo affects clotting, Rhodiola and Bacopa may interact with antidepressants, Bacopa with thyroid medication, and L-Theanine may affect blood pressure.
Tell your doctor about every supplement you take, especially if you are on prescription medication, are pregnant or breastfeeding, or manage a condition. Share the product label with your pharmacist if unsure.