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(2022) Augmented glutathione absorption from oral mucosa and its effect on skin pigmentation, Clinical, Cosmetic and Investigational Dermatology, [online]

These operate through completely different pathways

(14) In a separate 12-week study in mild to advanced photodamage, GHK-Cu seemingly improved skin attributes such as laxity, clarity, and firmness

Epub 2023 Apr 16

While animal models show promising tissue repair dynamics, there is no high-quality human data confirming that oral or injectable BPC 157 can safely heal the human intestinal mucosa or cure increased intestinal permeability

EASLEORTC Clinical Practice Guidelines: Management of hepatocellular carcinoma