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GHK-Cu Formulation Standards: Challenges & Best Practices The Golden Rule of pH Range : Maintain pH strictly between 5.0 7.0
Tsai, M.-S
After reconstitution the material is a solution rather than a powder, and solutions are far less stable reconstituted vials are refrigerated at 28C, kept away from light, and never frozen, since freeze-thaw cycling can precipitate peptides out of solution
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