GLOW Blend 70mg

GLOW is a three-peptide blend supplied at 70mg total, combining BPC-157, TB-500 and GHK-Cu in a single lyophilised presentation, with GHK-Cu accounting for 50mg of that total.

BPC-157 is a pentadecapeptide of fifteen residues corresponding to a partial sequence of Body Protection Compound, a protein characterised in human gastric juice. Its proline-rich N-terminal region is the structurally distinctive feature.

TB-500 is a synthetic peptide corresponding to the actin-binding region of thymosin beta-4, the motif through which the parent protein sequesters G-actin monomers.

GHK-Cu is a copper-binding tripeptide, glycyl-L-histidyl-L-lysine complexed with copper(II). The copper coordination is integral to the molecule, which is why it is catalogued separately from the uncomplexed tripeptide.

It shares three of its four components with the KLOW blend, which additionally contains the tripeptide KPV. The two are distinct preparations and not substitutes for one another in analytical work.

Supplied as a lyophilised (freeze-dried) powder in a sealed vial under vacuum. Lyophilisation removes water by sublimation, which is what allows a peptide to remain stable at ambient temperature during transit where a solution would degrade.

Reconstitution in a laboratory setting is typically performed with bacteriostatic water, introduced slowly against the vial wall rather than directly onto the powder cake. Peptide bonds are susceptible to shear, so the vial is swirled to dissolve rather than shaken.

Lyophilised and sealed, the vial is stable at 2 to 8 degrees Celsius and tolerates ambient temperature in transit. For storage beyond several months, minus 20 degrees Celsius is standard.

Once in solution the stability window shortens considerably and refrigeration is required. Repeated freeze-thaw cycles are the most common cause of degradation in a reconstituted peptide, so solutions are generally aliquoted rather than frozen and thawed as a single volume.

Every batch is independently tested through seven rounds of analysis. Identity is confirmed by mass spectrometry and purity quantified by reverse-phase HPLC, with the resulting Certificate of Analysis published against the specific batch rather than the product line.

Testing is performed by third-party laboratories operating to ISO 17025. The COA for the batch currently shipping is linked from this page and archived at /lab-tests.