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In hair follicles, 5-HT plays a role in regulating hair pigmentation and stress-induced depigmentation 20 , but its exact influence on hair growth/regression remains unclear

That's a much more productive conversation than reducing everything to "approved" or "not approved." Stefano M

Its because it helps the body absorb it better

Some signs that you may have a B12 deficiency include symptoms like fatigue, cognitive issues like brain fog, low energy, feelings of weakness, and tingling or numbness in the limbs

Scopolamine rapidly increases mammalian target of rapamycin complex 1 signaling, synaptogenesis, and antidepressant behavioral responses