Single vile peptides › HGK-CU Image 1 of 1 HGK-CU from $45.00 This research peptide kit includes 1 sterile vial of the listed compound, packaged together for laboratory and research use. Size: Select Size 50MG 100MG Add To Cart Added! This research peptide kit includes 1 sterile vial of the listed compound, packaged together for laboratory and research use. You Might Also Like GLOW Blend 70mg $70.00 Melanotan II 10mg $30.00 KLOW Blend 80mg $70.00