ghk-cu benefits skin anti-aging Copper Peptide Cream - Face Moisturizer with Hydrolyzed Collagen & Herbal Extracts Copper Peptides for Oily, Dry
Description
It means either the dose is wrong, the compound doesnt work for you, the product quality is poor, or the effect size is below what you can detect subjectively

The Abdulghani study directly compared a topical copper peptide to tretinoin and found superior tolerability with comparable or greater collagen improvements
Scientific studies support using these compounds to promote hair growth, enhance skin elasticity, and support the healing process [3]
The SUCNR1-induced signaling pathways are involved in responses to local stress, immune responses, renin-induced hypertension, ischemia/reperfusion injury, platelet aggregation, and retinal angiogenesis

It is very difficult to overdose on vitamin B12, and some would not even consider taking too much excess B12 as an overdose, as the body efficiently filters out what it does not need

Sleep 37 , 19071917 (2014)
