Delivery, Formulation, and Why It Complicates the Evidence A frequently overlooked reason the GHK-Cu hair literature is so muddled is that outcomes depend heavily on how the peptide is delivered and delivery varies enormously across the products and studies that generate claims
Tornehave et al., 2008) (Figure 1)
"The people selling them literally have no clue what's in them, often they don't have a proper ingredients list" he said
A Gentle Option for Sensitive Skin If you have sensitive skin, you know the struggle of finding treatments that deliver results without causing a reaction
Bran D, Dvorsk D, Strndel J, Matkov T, Halaov E, kovierov H