Here is what to focus on: 1
The Human Tripeptide GHK-Cu in Prevention of Oxidative Stress and Degenerative Conditions of Aging Oxidative Medicine and Cellular Longevity GHK-Cu functions as copper complex enhancing wound healing and collagen synthesis through angiogenesis, antioxidant defense, and prevention of protein degradation, with age-related decline noted
Similarly, products that may influence glutathione levelssuch as N-acetylcysteine (NAC) or whey protein isolate should be avoided during active treatment unless specifically directed by a qualified healthcare provider
doi: 10.1080/00362178085380251 49 RamageG.BachmannS.PattersonT
Several studies in noise-exposed rats, chinchillas, and rabbits, have reported that the administration of NAC minimizes the progression of apoptosis in sensory hair cells and reduces significantly the auditory threshold shifts, at low and medium frequencies, as compared to untreated animals (Kopke et al., 2000