ghk cu mixed with hyaluronic acid Copper Peptide GHK-Cu & - Body Lotion - Skin Firming 10 fl oz and a smoother Copper Peptide Solution, 1% GHK-Cu

Huang S-L, Wang J, He X-J, Li Z-F, Pu J-N, Shi W (2014) Secretion of BDNF and GDNF from free and encapsulated choroid plexus epithelial cells

The following adverse effects were reported in patients receiving semaglutide injection or oral tablets across all clinical trials and at incidences higher than with placebo: nausea (11% to 44%), vomiting (5% to 24%), diarrhea (8.5% to 30%), abdominal pain (5.7% to 20%), abdominal distention (2% to 7%), constipation (3.1% to 24%), dyspepsia (0.6% to 9%), decreased appetite (6% to 9%), eructation (0.6% to 7%), flatulence (0.4% to 6%), gastroesophageal reflux disease (1.5% to 5%), gastroenteritis (4% to 6%), and gastritis (0.4% to 4%)

10.1016/0022-2836(69)90388-x 522 SchoenbornB

If topical copper peptides can do so much, why arent they in more skin-care products