The stratum corneum has a passive transepidermal absorption ceiling that sits at roughly 500 daltons, which means anything smaller than that has a chance of getting through intact skin and anything larger does not 4
(The peptides involved have not been disclosed.) The doctor who administered the injections defended himself by citing an A.I.-generated report, telling ProPublica that it basically says that it is impossible it was the peptides. When I asked Sikiric whether people should be using peptides like BPC-157, given the lack of data in humans, he said, As a medical doctor, I should reply negatively
H.KimJ.-Y.KimH.-N.et al (2019a)
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Patients frequently report an energy change in the first day or two, which is most plausibly B12 in deficient patients, and expectation in everyone else
Last Updated: Oct 22, 2025