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FDA considers widening access to peptides promoted by wellness influencers
Banks and Kastin reported that radiolabeled DSIP administered peripherally produced detectable DSIP-like immunoreactivity in brain tissue at levels above what non-specific leakage would predict, and that the modified analogue [D-Ala3]-DSIP entered brain at substantially higher levels than the parent compound after intracarotid administration (Banks & Kastin, 1981)
Sleep & Libido In one study, sleep apnea was shown to have an impact on testosterone levels in men
There were no attempts to conduct a meta-analysis or systematic review
Subjective Observations: While often qualitative, careful logging of any noticeable changes in the research subject can complement quantitative data
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