A similar effect can happen with other treatments such as retinoids, like retinol, that may cause purging due to the way they impact how skin cells move from the lower layers to the surface (1, 2)
Tharp, K
It helps protect the body from oxidative stress, which can lead to cellular damage and various health conditions
However, pretreatment with 10 g/g GHK-Cu significantly increased both SOD activity and GSH levels, bringing them to values comparable to control mice
Patients with vitiligo have been found to have not only significantly increased average levels of hydrogen peroxide (H 2 O 2 ) in their skin lesions, but also significantly lower measured activities of catalase, superoxide dismutase, glutathione peroxidase and glutathione S-transferase than in the control group, as well as significantly increased levels of malondialdehyde [9, 15, 16]
Leverenz J