does ghk cu help with hormonal acne Cup Peptide Before and After GHK-Cu Serum — Professional Copper
Description
Comparing only headline percentages: REDEFINE 1 and REDEFINE 4 answer different questions

10.1038/ni1142
At standard human doses (1 to 2 mg per day for a 70 kg person, or 0.014 to 0.028 mg/kg), copper toxicity risk is negligible
Some types of edible algae and fermented foods may also contain small amounts, but they arent reliable sources

10.1161/ATVBAHA.119.312192 21 CollinsP
