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Audiologist Stephen DeMari points out theyre still a better option than no hearing protection at all or shoving cotton or tissue in your ears

The compound's protective mechanisms extend to preservation of synaptic proteins and prevention of synapse loss

Nasal delivery has higher bioavailability for some peptides, particularly neuropeptides like Semax and Selank, due to the nasal mucosa direct proximity to the brain and rich vascularization

However, these theoretical advantages are irrelevant without human efficacy data

After the substrates and ions enter through the opening and bind to their respective sites, extracellular loop 4 (EL4) locks the opening of the gate and the transporter shifts to the substrate occluded state