What are the dangers of taking biotin? Biotin supplements can cause problems if you take too much. Side effects can include skin rashes, digestive upset, problems with insulin release, and kidney problems. As with any supplement, the safety of long-term or high-dose use isn’t known.
How much biotin is safe per day? 30 to 100 micrograms
How much biotin should you take for hair growth? 2-5 milligrams
Related Questions
Is Biotin Safe To Take
When taken by mouth: Biotin is likely safe for most people when taken in doses up to 300 mg daily for up to 6 months. But it is more commonly used in lower doses of-5 mg daily. When applied to the skin: Biotin is likely safe for most people when applied in cosmetic products that contain up to 0.6% biotin.