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Most consistent users report visible improvement in dark spots, acne scarring, and overall skin tone clarity within 6 to 8 weeks of daily use
doi: 10.4049/jimmunol.173.11.7010 129 EndresMAndreasKKalwitzGFreymannUNeumannKRingeJet al
Creates a healthier scalp environment for long-term growth
2021 Dec;11(12):4045-4054
One analysis found GHK-Cu applied to skin for 12 weeks improved collagen production in 70% of treated women (compared to 50% with a vitamin C cream and 40% with retinoic acid)
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