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Domej W, Oettl K, Renner W (2014) Oxidative stress and free radicals in COPD-implications and relevance for treatment

Palmer CN, Doney AS, Lee SP, Murrie I, Ismail T, Macgregor DF, et al

While the research is primarily from skin models (in vitro, animal, and some human topical studies), they point to GHK-Cu as a peptide that supports structural repair, which is more suitable for lifters coming off hard training or minor injuries but not for direct muscle growth [1, 2]


, Skinders, M

breaks down the challenge in more detail
