Biomimetic Peptides for Skin: The Dirty Secret & What Works
Most peptides are too large, too hydrophilic, and too chemically unstable to penetrate the stratum corneum in meaningful ways. This explains why some peptide serums don’t do jack. If peptides can’t get past the lipid-rich outer layer of your skin, it’s just expensive water on your surface. Our personal favorite is ghk cu copper cream …