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The practical consequence is that the GHK-Cu complex may partially degrade in the presence of high-concentration ascorbic acid on the skin surface, and the free copper(I) could be mildly pro-oxidant
For more details, see our previous post Excess HSA Contributions, as well as slide 53 of our Newfront Go All the Way With HSA Guide
For more detailed guidance on injection site selection and rotation, see our guide on where to inject retatrutide
Keep it cool, dry, and shielded from direct light before use, refrigerating if holding it longer term
Tocophersolan is an antioxidant
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