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Using GHK-Cu with retinol, vitamin C, and hyaluronic acid supports renewal, improved skin protection, and hydration, respectively, delivering effective and more natural results
For GHK-CU and AHK-CU, start with 1-2% concentration regardless of which type you choose
Nutritional deficiencies, stress, and hormonal changes unrelated to the peptide can all affect hair
round down to minimize any potential GI sensitivity
This is the most theoretical application and should generally not be the starting point
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