The needles create temporary channels through the stratum corneum while the serum flows through the needle bore at the same time, bypassing the skin barrier that would otherwise block large molecules like peptides, growth factors, and high-molecular-weight hyaluronic acid
Examples include tocopherol, butylated hydroxyanisole, butylated hydroxytoluene, ascorbyl palmitate, ascorbyl oleate, and the like
coli GGT indicated its ability to uptake an exogenous supply of -glutamyl peptides and glutathione as the source of amino acids (Suzuki et al., 1993)
Cch ung Glutathione hiu qu nn bit Ch nn ung Glutathione khong t 3 6 thng, sau ngh ung t 1 2 thng ri mi dng li
This hypothesis must be corroborated by further in vitro and in vivo studies