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The question of whether GHK-Cu needs to be refrigerated isn't just about storageit's about your commitment to valid, reproducible science
Storage instructions: Store at room temperature
Etsuo Ohshima (Kyowa Pharma Chemical Co., Ltd., Toyama, Japan) were invaluable
Phase 2 is hypothesis-generating
Overuse and combining it with strong acids or high-strength vitamin C can cause problems, so working with a provider helps you use a safe, effective amount for your skin and goals
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