In a paper Bluestone and colleagues published in the AACR journal Cancer Immunology Research , they note that irAEs are either a consequence of an autoinflammatory response, caused by the activation of innate immunity, or an autoimmune response, indicated by the presence of autoantibodies and antigen-specific memory T-cell responses
In general, they appear to be safepartly because rather than adding new substances or chemicals, our bodies already use peptides to communicate

Fat loss vs muscle preservation balance Pure fat burners (not ideal alone): Burn fat effectively But don't preserve muscle well Can be catabolic in severe deficits Need to stack with muscle-preserving compounds Muscle preservers (critical for lean physique): Prevent catabolism during deficit Maintain anabolic signaling Keep strength high Essential for actual leanness Ideal lean peptides do both: Increase fat oxidation AND preserve muscle Growth hormone pathway accomplishes this Why GH secretagogues dominate lean stacks Best of both worlds The GH advantage for body recomposition Growth hormone is THE hormone for getting lean: GH increases fat loss by: Activating hormone-sensitive lipase (breaks down fat) Mobilizing fatty acids for energy Preferentially burning fat over carbs Targeting stubborn fat deposits GH preserves muscle by: Increasing protein synthesis Preventing muscle breakdown Maintaining anabolic environment Keeping metabolism high Why GH peptides beat everything else: Fat loss + muscle gain simultaneously (recomposition) Lean mass increases while fat decreases Scale weight may stay same (muscle replaces fat) Body comp dramatically improves Strength maintained or increased This is why Ipamorelin , CJC-1295 , and similar GH secretagogues dominate lean peptide stacks

See my options Retatrutide + CJC-1295 Ipamorelin: Combination Potential and What to Know
A protein made up of three amino acids, L-glutathione is an important component of the body's primary antioxidant defense system