Food and Drug Administration
Men are also more likely to develop conditions associated with reduced glutathione or higher oxidative stress, including, More visceral fat than women, which drives insulin resistance 49 Higher rates of sleep apnea, another contributor to oxidative stress 50 Cardiovascular disease, which occurs about 710 years earlier in men than in women on average 51 As estrogen declines through perimenopause and menopause for womenand remains lower in men overalldifferences in glutathione activity likely reflect hormonal influence as much as sex-based biology, Tennant says
Not all copper peptide products are equal formulation matters as much as the active
To put it simply, glutathione injections are faster with long-term effects, but are costly and come with their own fair share of side effects
GHK-Cu and copper uglies Albeit rare, some people may experience a side effect from using GHK-Cu or other copper peptides known as copper uglies. Though there arent any studies on this phenomenon, some users have anecdotal reports of copper peptide skin care products leading to what looks like accelerated skin aging instead of antiaging