Some individuals report mild gastrointestinal upset
This may include instances where: You need a stronger product to achieve your goals (e.g., deep hyperpigmentation, severe acne, etc.) You already use another product containing copper (this could be unsafe) An essential part of your skin care routine is a harsh active, vitamin C, strong exfoliant, or salicylic acid many of which are common ingredients in acne treatments and anti-aging products (copper peptides shouldnt be mixed with them) Using copper peptides may be unsafe (i.e., you have Wilsons disease, a peptide allergy, or active/suspected cancer) Youve tried a copper peptide product in the past and experienced an adverse reaction (e.g., copper uglies or troublesome side effects) If youd like some alternatives to copper peptides, we go over a few in the Alternatives to copper peptide serums section later in this guide
Clinical renal outcomes exhibit notable uniformity across cardiovascular outcome studies
Notably, despite the presence of severe obesity, large-scale population cohort studies have revealed that individuals with MC4R -deficient obesity exhibit a unique metabolically protective phenotype
However, the intensity of these effects can vary from person to person, with some individuals noticing a more gradual decrease in hunger
