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Published clinical data shows measurable changes in collagen density and skin firmness at 12 weeks of consistent GHK-Cu topical serum use
Early signs include tingling or 'pins and needles' in the feet and hands, numbness in the extremities, burning pain (often worse at night), balance problems, and muscle weakness
Nn nu bn l mt trong nhng trng hp di y, th rt tic l khng th dng vin trng da glutathione c
It doesnt help that our circadian rhythm also radically changes with age
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