what about ghk cu GHK-CU – Research Peptide GHK-Cu Copper Peptide Face Cream,
Description
The transdermal patch may contain from 0.5- 200 mg of copper tripeptide, preferably from 1- 100, 1-50 and most preferably from 1- 20 mg of copper tripeptide

painful and acid reflux like crazy

But, its also used in weight loss treatments
The significance of this paper is not only to compare the three routes of administration but also to evaluate them and determine which route is the best to administrate the drug
