glutathione and whey protein BulkSupplements Powder (Reduced Form) 50 Grams (1.8 oz) Formulated with Cytokine Modulating Peptides (CMP) Immunotec Immunocal Glutathione Precursor -
Description
The "Cu" in GHK-Cu stands for copper, which means it's the copper-bound form of the GHK peptide

Jpn Acad

If you want to age well, you cant neglect those things

Improved skin health: Since glutathione may help reduce the production of melanin, it may contribute to a brighter, more even skin tone and may assist in reducing the appearance of blemishes and age spots
