The questions below are the ones researchers ask most about storing, mixing and handling GLOW. Each answer reflects what is in the vial, 50 mg GHK-Cu, 10 mg BPC-157 and 10 mg TB-500 for 70 mg in total, and links to the fuller page where there is one.
How long does GLOW last in the fridge after mixing?
Under Vistara Labs’ handling guidance, mixed GLOW lasts 8 to 12 weeks at 2 to 8 °C, kept dark, with quality slowly fading from around week 6 to 8. The three peptides have never been studied together in solution, so this is the general window each takes on its own, applied to the blend. The full table is on how long GLOW lasts.
How long does unmixed GLOW powder last?
Sealed and dry, a GLOW vial keeps for the weeks it is in use at 2 to 8 °C and for months at minus 20 °C, in its box. With almost no water in the cake, neither hydrolysis nor copper exchange can make real progress. A few days in transit at room temperature do not harm it, which is why it ships without ice.
What is in a GLOW vial?
Three peptides in a fixed ratio: 50 mg GHK-Cu, the copper complex of Gly-His-Lys; 10 mg BPC-157, a 15-residue peptide; and 10 mg TB-500, the acetylated fragment Ac-LKKTETQ. The label’s 70 mg is the total. Each has its own research reference in this series.
How is GLOW different from KLOW?
KLOW adds a fourth peptide, 10 mg of KPV, to the same three. GLOW has no KPV, so the heat-driven ring formation that KPV’s lysine-proline start is prone to does not apply, and GHK-Cu is a larger share of the vial. Storage windows are the same. The comparison is in KLOW vs GLOW.
Which component limits GLOW’s storage?
GHK-Cu. BPC-157 and TB-500 are among the most stable research peptides, while GHK-Cu can lose or exchange its copper and is treated as light-sensitive. Since it is about 71% of the vial, the blend is stored to suit it: cold, dark and in plain bacteriostatic water. Details on the GLOW stability page.
Why is GLOW blue?
The blue is copper(II) held by GHK. No dye is used, and a stronger solution looks a deeper blue. A clear blue is what a good vial looks like; fading, a green or yellow cast, darkening or a cloudy blue are reasons to discard it.
What do you mix GLOW with?
Bacteriostatic water: sterile water with 0.9% benzyl alcohol, so the refrigerated vial can be entered more than once. All three peptides are hydrophilic and dissolve fully in it. Acid and phosphate buffer are left out because they disturb the copper. The reasons are on the GLOW solubility guide.
How much bacteriostatic water goes in a 70 mg GLOW vial?
There is no single correct volume. With 2 mL a 70 mg vial gives 35 mg/mL of combined peptide; with 3 mL it gives 23.33 mg/mL. More water spreads the same amount of peptide through a larger volume, so write the chosen concentration on the vial. Tables, calculator and each component’s share are on the GLOW reconstitution page.
Can you freeze mixed GLOW?
Not a vial that will be opened again, because repeated freezing and thawing promotes aggregation in peptide solutions. Laboratories that need frozen solution divide it into single-use aliquots and thaw each one once. Sealed powder can be frozen at minus 20 °C without concern.
How is the GLOW nasal spray stored?
The spray is ready-mixed in sterile saline in a sealed metered pump. It goes into the fridge upright and boxed on arrival, is dated on first opening and is never frozen. It is a different preparation from a mixed vial, so the vial’s window does not transfer to it. More in how to store a peptide nasal spray.
All products supplied by Vistara Labs are intended for laboratory research use only. They are not drugs, are not approved for human or veterinary use, and are not intended to diagnose, treat, cure or prevent any condition. Nothing on this page constitutes medical advice or guidance for use in humans.
