The recommended daily intake of biotin is 30100 mcg, though higher doses (up to 10,000 mcg) are commonly used in hair growth supplements with no reported toxicity
Monitoring recovery markers in experimental models
Cell Death Discovery (2020) 6:52
Okudaira H, Shikano N, Nishii R, Miyagi T, Yoshimoto M, Kobayashi M, et al
Int J Mol Sci 21(16):5624 Fattori V, Si A, Kobayashi K, Costa LG, Tsuji R (2008) Effects of postnatal ethanol exposure on neurotrophic factors and signal transduction pathways in rat brain
However, most available data on vitamin C in liver disease comes from studies in nonalcoholic fatty liver disease (NAFLD), and the only randomized controlled trials evaluating supplementation have been conducted in this population