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Clinical Translation: Subsequent studies have confirmed these laboratory findings in human subjects, showing that topical and systemic GHK-Cu increases measurable collagen deposition and improves skin structural integrity over 8-12 weeks of use

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It provides actionable evidence that if the goal is durable neural remodeling and mTOR suppression, continuous intranasal administration is vastly superior to sporadic systemic injections

The first changes are subtle: skin that feels smoother, a scalp that feels calmer