Description_x000D_ Amino Acid Sequence_x000D_ Gly-His-Lys_x000D_ General description_x000D_ Gly-His-Lys is a tripeptide present at ∼200ng/ml in association with α-globulin and albumin, in human blood plasma._x000D_ Application_x000D_ Gly-His-Lys (GHK) has been used for the preparation of post-operative intra-articular injection of GHK-Cu (copper)._x000D_ Packaging_x000D_ Bottomless glass bottle. Contents are inside inserted fused cone.