sprout glutathione Codeage Liposomal Glutathione+ Spotted one of my favorite

Dose-dependent effects of IL-17 on IL-13-induced airway inflammatory responses and airway hyperresponsiveness

These were ex-vivo permeation experiments framed around anti-inflammatory delivery rather than wrinkle outcomes, so they speak to whether the molecule can reach the dermis, not to how much cosmetic change follows but even that limited, mechanism-level demonstration is one the injectable route has no equivalent of for reaching skin specifically

So why would there be a peptide within the gut that's involved in tissue healing and repair

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Salomon, J