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Another study explored the potential interaction between GHK-Cu and hyaluronic acid (HA) on collagen synthesis, particularly focusing on their potential collaborative actions in dermal fibroblasts and an ex-vivo skin model
Unlike many pharmaceuticals, GHK-Cu does not appear to cause tolerance
You can safely incorporate it into your daily regimen if there is no irritation or allergic response
Nicotinamide (niacinamide) does not cause flushing and has fewer side effects, with nausea and liver toxicity reported only at very high intakes ~3 g/day)
M., Kynaston, L., Naseem, S., Proudman, E., & Laceby, D
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