deepika padukone glutathione ONTD Original: Bollywood actresses who have allegedly undergone skin lightening: ohnotheydidnt — LiveJournal Deepikas Skin Tone Inspiration

This may enable the tripeptide to play a role in whole-body repair by supporting vital enzymes that participate in connective tissue formation, antioxidant defense, and cellular respiration

10.1038/s41420-025-02331-0 Cell Death Discov

The concentration was 50 to 100 times lower than standard GHK-Cu serums (0.02% vs 1 to 2%), which likely explains the modest outcome

The Reddit user asked to remain anonymous because he now does freelance science writing a door that opened for him, he said, after he combed through the scientific literature and wrote up his findings in a 57-page Google Doc called the Peptide Primer, which is online and free for anyone to peruse