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Cata-Kor said that, of the twelve products tested, six failed to meet their label claims for glutathione content
Wasserstein AG (2013)
Research Limitations and Gaps While the individual peptides have encouraging results in animal or cellular models, several limitations remain: Lack of clinical trial data on combinations or long-term effects Unknown interaction dynamics between multiple peptides in vivo Variability in peptide purity and stability among sources Dosing and timing considerations remain undefined in a blended context Limited human translational data beyond small pilot or observational studies Further research is needed to determine how such peptides behave together , including any potential synergistic , neutral , or even antagonistic interactions
Understanding what the research actually shows versus marketing claims is essential before considering this intervention
doi: 10.3390/ijms23158761 97 YuxiaTSiqiWYangLChenYJieZZiqingXet al
