GHK Cu, CJC 1295 & More: Are These Peptides Safe? Manapura What are your thoughts on peptides like GHK CU and BPC 157 (those not FDA approved) I am seeing providers offer them and do see that they can be helpful but if they aren't GHK Cu peptide is a powerful tool in regenerative dermatology.As Dr. Raed Eldamassy explains, it plays a key role in stimulating collagen and elastin production, helping improve skin firmness and reduce visible signs Is GHK Cu Halal? Check Now Masjid al Haram Wikipedia Amazon.com: COSRX 6X Peptide Collagen Skin Booster Toner Serum for Dull & Uneven Skin, Preps Skin with Copper Peptides, GHK Cu, Skin Renewal Boosting Facial Essence, Korean Skin Care, 5.07 oz : Beauty