Supplied as a lyophilized powder. Reconstitute in sterile water or another solvent compatible with your own protocol; the peptide's two methionine and basic arginine/lysine residues make it generally soluble in aqueous and mildly acidic buffers. Centrifuge the vial before opening, add solvent slowly down the vial wall, and swirl gently rather than vortexing. Store the lyophilized powder at -20 C; store reconstituted solution at 2-8 C for short-term use or aliquot and freeze at -20 C to -80 C to avoid repeated freeze-thaw cycles. Protect from light and moisture. Any downstream handling is performed by the buyer according to their own laboratory protocol and applicable safety practice.