Topical GHK-Cu serum shelf life Pre-made commercial serums: Usually 6-12 months unopened 3-6 months after opening Check manufacturer recommendations Refrigerate after opening extends life DIY serums (mixing powder with carrier): Shorter shelf life than commercial 2-4 weeks typical (no preservatives) Must refrigerate Discard if color changes Factors affecting topical shelf life: Preservatives: Extend significantly pH: Neutral pH more stable Carrier: Some better than others (hyaluronic acid, glycerin good) Storage: Cool, dark, sealed Contamination: Sterile technique critical Best practices for topical GHK-Cu: Buy small bottles (use within 3-6 months) Refrigerate after opening Don't double-dip (pour into hand, don't touch dropper to skin) Watch for color changes (brown = oxidized) Replace every 6 months even if looks fine See our how to reconstitute peptides , bacteriostatic water for peptides , and how long reconstituted peptides last in fridge
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A lot of times this can be done through your local pharmacy
GLP-1 (Tirzepatide / Semaglutide) Dose to Units Calculator Estimate your dose, syringe units, and mL precisely
in 35 days US-synthesized Made & lab-released in the United States Independent COA Third-party Certificate of Analysis per lot HPLC + LC-MS Purity by HPLC, identity by mass spectrometry Same-day dispatch Orders before 2 PM CT ship the same business day What is the Wolverine Blend
After injections the decline is slower, and a level can stay above the reference range for six months or more after the last dose
