Current limitations include the complexity of the mechanisms of action, which makes it difficult to identify predictive biomarkers of response, the lack of detailed pharmacokinetic data for synthetic TB-500, and the difficulty of translating effective doses from animal models to humans
Heres what that looks like in practice: Encouraging Fuller-Looking Hair: Supports the scalp to help hair appear thicker and more voluminous
141 Some interventional clinical trials on the effects of vitamin B 12 supplementation in combination with other micronutrients and/or medications in cases of COVID-19 are currently being recorded in the International Clinical Trials Registry Platform and ClinicalTrials.gov databases registration numbers NCT04395768 (500 g methylcobalamin orally, daily, for 14 days), NCT04751669 (9.6 mg cyanocobalamin orally, once a day, for 14 days), and NCT04828538 (1 mg daily oral B 12 supplementation for up to 60 days)
The reasons are multifaceted: rodent models of neurodegeneration imperfectly recapitulate human disease
References: Johnson, Donovan B., and Matthew Varacallo