They can potentially promote collagen production, improve skin elasticity, support wound healing, and may enhance hair growth
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In addition, the activity of various types of skin cells including keratinocytes, mast cells, endothelial cells, fibroblasts, and even sebocytes are associated with melasma incidence (KrupaShankar et al., 2014)
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For serious hair loss concerns, AHK-CU is the better primary choice, potentially combined with GHK-CU for scalp health
They are also available in the more traditional tablets and capsules