Rather than acting like a conventional pharmaceutical drug, GHK-Cu appears to function more like a biological signaling molecule
EvenSkyn's micro-infusion serum, Syntha-Pep, is built around a small set of well-studied actives, so it is a useful worked example of what a delivery-matched formula is trying to do
We loved how quickly Obagi Professional-C Serum absorbed but on the flip side, liquid dribbled all over the place, wasting (a pricey!) product
Lee HS, Sung DK, Kim SH, Choi WI, Hwang ET, Choi DJ, Chang JH (2017) Controlled release of astaxanthin from nanoporous silicified-phospholipids assembled boron nitride complex for cosmetic applications