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GHK-Cu for hair growth… does it actually work?🤔 Short answer: no. GHK-Cu can be great for skin — but when it comes to hair growth, the evidence just isn't there. And this

Primary lesions are often papules, but self-trauma quickly leads to excoriations, alopecia, crusts, and hyperpigmentation

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Pack Size:25 bottles

The single most important thing to understand in this comparison is that GHK-Cu and Matrixyl 3000 approach skin aging from two distinct angles: remodeling versus signaling