Most peptides don't come ready to inject they come as powder for a reason. Peptides are lyophilized (freeze dried) to keep them stable and effective. When you receive them, you simply: Add This mistake ruins your peptides., Most degradation doesnt happen in the vial., It happens in storage., Heat., Light exposure., Improper refrigeration., Freezing when you shouldnt., All of it GHK CU Topical Slide Case Holder Locking Top Etsy GHK Cu Saskatoon Peptides (PC) GHK Cu Refrigeration: Essential or Overkill in 2026? Do You Need to Refrigerate Copper Peptides TikTok