If the patient is getting worse then toxicity is a concern
The follow-up period varied widely between 6 and 12 months after injection making it hard to know when and how recovery occurred
Safety, Tolerability & Regulatory Status Safety Profile GHK-Cu demonstrates an excellent safety profile for cosmetic use: Naturally occurring in humans (plasma, saliva, urine) Non-sensitizing in standard patch testing at cosmetic concentrations Long history of topical application in anti-aging and wound care products Minimal reported adverse reactions at appropriate doses Usage Levels and Tolerability Regulatory Status EU : Permitted as a cosmetic ingredient with standard safety assessments US/Asia-Pacific : Allowed under respective cosmetic regulations Formulators must : Perform product-specific safety evaluations, including SDS review, toxicological profiles, and margin of safety calculations Addressing Copper Uglies Literature occasionally references theoretical over-stimulation of MMPs leading to collagen breakdown (sometimes called copper uglies)
Although much promise was seen in early stages of clinical trials with the exon-skipping ASO Drisapersen for DMD, phase 3 trials failed to achieve clinical success [98,99,100]
The paradox of iron supplementation becomes evident when well-meaning attempts to treat hair loss through high-dose iron inadvertently worsen the condition
