Not for human or veterinary use, ingestion, injection, or any in-vivo administration
Glia 23:139145 Dringen R, Kussmaul L, Gutterer JM, Hirrlinger J, Hamprecht B (1999a) The glutathione system of peroxide detoxification is less efficient in neurons than in astroglial cells
The idea is simple: if topical use can improve surface-level markers, deeper systemic exposure may be worth exploring for people who want support that goes beyond what a serum can do on its own
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