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Lastly, niacinamide can be paired with glutathione, a tripeptide naturally present in the skin, known for its ability to modulate melanin synthesis by inhibiting tyrosinase and promoting a shift in melanogenesis toward the production of lighter pheomelanin
These statements refer to the ingredient GHK-Cu as studied in published literature and are not claims about CKYN products specifically
Microneedling-and-microinfusion devices defeat that barrier mechanically
Generating sufficient safety evidence would require large-scale clinical trials involving thousands of participants
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