As of late April 2026, GHK-Cu injectable is legal
For a peptide to survive orally it needs at least one of the following: resistance to protease cleavage (via D-amino acid substitution, cyclization, or N-methylation), a transport mechanism at the epithelium (like PepT1 for di- and tripeptides), or a protective delivery vehicle (enteric coating, nanoparticle)
While it is hard to pick a favorite peptide there are that many to choose from one thats especially close to my heart (and knees) is Body Protection Compound 157, better known as BPC 157 or simply BPC
Gardocki said she developed the product after realizing there was no skin care specifically formulated to enhance the effects of red-light therapy
10.1007/s12264-018-0269-8 102 WuH.WeiM.LiN.LuQ.ShresthaS
There is no needle disposal concern