GHK-Cu is predominantly found in saliva, blood, and urine, and has multiple biological actions when administered to test subjects, including [1]: Antioxidant gene activity [2] Suppression of inflammatory cytokine interleukin-6 [2] Increased protein accumulation [3] Increased collagen synthesis [3] In animal models, GHK-Cu has been shown to increase an anti-inflammatory proteogly called decorin that can protect diabetic rats from kidney-damaging fibrosis [2, 4]
It doesnt last for long though, so you do need to get more often
- This anti-aging and anti-oxidant formula delivers a brighter and more youthful complexion
2023 Apr 26;15(16):19833-19846
The antioxidant potential of bromelain has also been demonstrated in multiple experimental models
Some peptides are more stable in solution, some degrade faster, and some research settings use more conservative windows because sterility risk matters as much as molecular stability