Depending on the peptide in question, they can signal the body to repair tissue, reduce inflammation, or modulate function
But other users have also reported inconsistent outcomes and ongoing concerns surrounding bioavailability, dosing variability, long-term safety, and product quality
Interestingly, the same gene expression research that identified this theoretical risk also found that GHK-Cu suppresses RNA production in 70% of 54 genes overexpressed in metastatic colon cancer
This suggests a temporary effect on blood pressure regulation or hydration status rather than a direct neurological impact
75 A small controlled trial with 23 participants suffering from chronic tinnitus found tailor-made notched music training reduced activity in auditory brain regions and tinnitus loudness more effectively than placebo music training (with a varying notch in frequency range) or no treatment after six months and one year
Many struggle with the two to three-month interval as it is