What is the maximum amount of biotin per day?

The maximum recommended amount of biotin varies depending on age, sex, and health conditions. For adults, the adequate intake level is generally set at 30 micrograms (mcg) per day, with no established upper limit due to its low toxicity. However, some supplements may contain significantly higher doses, often exceeding 5,000 mcg, but such high doses should be taken with caution and under medical supervision. Always consult a healthcare professional before starting any new supplement regimen.