Adverse Events FDA received an adverse event report on January 14, 2019, regarding seven patients in an outpatient clinic who received intravenous injections containing L-glutathione 200mg/mL compounded by a pharmacy using L-glutathione repackaged by Letco (lot number: 1810150050, expiration date: 6/17/2020)
One sublingual-specific consideration: niacinamide can cause flushing (warmth and redness in the face and upper body) in some people, and sublingual absorption may increase the likelihood of flushing compared to injectable because the niacinamide enters the bloodstream more rapidly
What matters far more than the exact route is whether you needed the injection in the first place, and whether the dose and schedule are right
How Perfect B Stacks GHK-Cu With RF Microneedling for Amplified Results One of the consistently observed patterns at Perfect B is that patients combining GHK-Cu with Morpheus8 RF microneedling reach visible milestones 3 to 4 weeks earlier than patients on GHK-Cu alone
Needless to say, none of this is glamorous or particularly fun