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Cleveland Clinic resources (updated 2025) caution that efficacy claims lack robust RCTs and that purity varies substantially across formulations (1050% active in products)

Synaptic loss in multiple sclerosis: a systematic review of human post-mortem studies

Although the identity of the primary neural stem cell in the hippocampus and the lineage relationship between type 1 and type 2 cells is currently controversial (Tropepe, 2007), there is a consensus that the undifferentiated state and self-renewal of adult NPCs is controlled by the high-mobility-group DNA-binding protein Sox2 (Suh et al., 2007)

Continue reading Further animal studies have indicated that it also promotes the formation of new blood vessels around hair follicles and may increase hair growth by activating the proteins P38, ERK, and Akt