where is glutathione injection given What a Push? Glutathione Injections for Skin Whitening:

The designation bacteriostatic refers to the benzyl alcohol preservatives mechanism of action , benzyl alcohol at 0.9% w/v inhibits bacterial cell membrane integrity and disrupts metabolic function in a broad spectrum of Gram-positive and Gram-negative organisms, preventing microbial proliferation in reconstituted solutions without producing the bactericidal activity that would require higher antimicrobial concentrations

In senescent cells, FOXO4 binds to p53, preventing apoptosis

You might notice that oral doses are higher to compensate for this

Biomineralization Signal Peptides Amelogenin-derived peptides are short sequences derived from the enamel matrix proteins that orchestrate tooth development

She also notes that the other ingredients are mostly for hyperpigmentation or to reduce scarring, while the phenol is in there for a slightly numbing effect