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In a separate study on rats, a collagen dressing with GHK-Cu accelerated the healing of wounds in both healthy and diabetic subjects.3 However, researchers point out that GHK-Cu is very sensitive to breakdown by certain enzymes

It is very important to note that these substances of abuse remain prohibited and athletes can still be given sanctions up to four years for presence of a substance of abuse if they cannot establish that its use was out-of-competition and unrelated to sport

Be aware of potential side effects and interactions with other medications or supplements

Kendall J

Girolomoni G, Ricciardi-Castagnoli P

When zonulin levels are elevated, these junctions become loose, leading to increased intestinal permeabilityor leaky gut