ghk-cu peptide facts discovery structure mechanisms benefits safety Frontiers Peptide Therapy for Aesthetics -
Description
It breaks down both phospholipid and synthesized bilayers

Paraffin-embedded mouse skin and lung samples were sectioned and stained with hematoxylin and eosin or Masson's trichrome

doi:10.1017/S1092852918001013

If you bought it from a UK supplier then it's much more likely that your they have had them stored at room temperature for days/weeks/months
