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Making an Informed Decision Choosing to pursue treatment with NAD+ and glutathione is a significant decision, particularly for individuals grappling with the persistent and often debilitating effects of long COVID

This suggests that CHAC1 expression is inhibited by STAT3, and reducing STAT3 levels through propofol treatment releases this inhibition, thereby increasing CHAC1 expression

It is also critical to include a solvent control in the experimental design, which does not mean a group treated with DMSO alone but an APAP + DMSO group

This is a conceptual argument rather than a measured one again, the human PK data do not exist but it illustrates why systemic delivery is not self-evidently advantageous for a cosmetic goal, and why the burden of proof sits squarely on anyone claiming injection is the better skin route