Lyophilized GHK-Cu shelf life (before reconstitution) Freezer storage (-20C): 12-24 months Most common storage Standard home freezer adequate Expected shelf life: 18-24 months typical GHK-Cu slightly shorter than some peptides (copper oxidation) Still excellent storage option Why GHK-Cu shelf life shorter than some peptides: Contains copper (oxidation concern) Copper can catalyze degradation More sensitive than copper-free peptides But still stable for 1-2 years frozen Refrigerator storage (2-8C): 6-12 months Acceptable if using soon Shorter than freezer 6 months very safe 12 months likely fine but degradation starting Room temperature: Weeks to 2-3 months Not recommended for storage Only during shipping or brief periods Copper oxidation accelerates Use freezer or fridge GHK-Cu vs other peptides shelf life: Maximizing lyophilized GHK-Cu shelf life: Freeze immediately upon receipt Keep in sealed vial (moisture is enemy) Store in box (protect from light) Minimize freeze-thaw cycles Label with date received See our peptide storage guide , do peptides expire , and should copper peptides be refrigerated
This matters more than it might seem
It is extremely beneficial to us its main purpose is to protect the cells of our bodies from harmful toxins, explains Kelly Saynor, aesthetic nurse and founder of Prfkt
Selank essentially helps build your emotional resilience, allowing you to face challenges with a steady, focused mindset instead of feeling frazzled and reactive
Cost Winner: Life Extension Glutathione Even after you account for the shipping cost for non-subscription orders below $50, Life Extension Glutathione, at $23.25, is around $5 less than the second-most affordable glutathione supplement on our list (Doctor's Best) and more than $20 less than the most expensive (Quicksilver Scientific)
Once reconstituted with bacteriostatic water or sterile saline, store at 2-8C (refrigerated) and use within 28 days
