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GHK-Cu and Wound Healing Research Multiple animal studies have established the wound healing activity of GHK-Cu, with research in rabbit experimental wounds showing improved wound contraction, granular tissue formation, increased glutathione and ascorbic acid levels, and elevated collagen synthesis and fibroblast activation

The two share the same three peptides at identical doses, so switching mid-cycle is a vial swap

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Glutathiones role in liver metabolism and hangover symptom relief: Dysregulation of protein S-glutathionylation and antioxidant enzymes

To maintain optimal stability, keep the pen away from light, and do not expose it to repeated temperature changes

Hormonal changes, stress, dietary shifts, or new products introduced around the same time as GHK-CU could be responsible