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The cells were cultured in DMEM supplemented with 10% FBS and antibiotics (100 g ml-1 streptomycin and 100 units ml-1 penicillin, Gibco)
In September 2023, the FDA added injectable GHK-Cu to a list of compounded substances considered high-risk due to limited safety data
The injection protocols being shared on social media are largely based on anecdote and extrapolation rather than controlled trials examining skin outcomes
Contact your GP if you notice no improvement after 46 weeks of treatment, experience worsening neurological symptoms, or develop new unexpected symptoms
If irritation occurs, discontinue use
Investigator-assessed improvement Finding: The blinded investigator assessed the active treatment group as showing Scale 1 improvement (2650% improvement) at the final visit, while the placebo group showed Scale 0 improvement (025%)
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