These include sunlight, pollution, and the metabolic "exhaust" created when your body turns food into energy
The purpose of forming the copper complex, GHK-Cu, is to enhance activity
Patients with asthma represent a relative contraindication group, as bronchospasm has been reported in susceptible individuals following parenteral administration
Topical serums on intact skin produce modest results (7% at 16 weeks)
The studies that do not yet exist To claim that subcutaneous GHK-Cu improves human skin, one would need, at minimum, a randomized, placebo-controlled trial in human volunteers with defined skin characteristics for example, photoaged facial skin graded at baseline
These effects may be optimally stimulated at lower concentrations where the body interprets the signal as a gentle prompt rather than an emergency