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They are designed to support specific systems such as blood flow, neural signaling, energy metabolism, or antioxidant defense rather than replace or suppress hormones

Kh cht bng cng ngh hin i loi b hon ton tp cht v kim loi nng nhng vn gi nguyn dinh dng trong tht hu

Clinical research made them trustworthy

"The human tripeptide GHK-Cu in prevention of oxidative stress and degenerative conditions of aging: implications for cognitive health." Neurochemical Research , 39(6), 1140-1148

Am J Hosp Palliat Care

Indeed, the last three rows of Table 5 show that the up-regulation of CBS has exactly this effect and that the addition of oxidative stress makes the effect much stronger