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[9] How do I apply GHK-Cu Scalp Solution, and how often should I use it

Niacinamide is has been shown to reduce pigmentation by inhibiting melanosome transfer using a skin-co-culture model (126), whilst soymilk and soybean extracts have been previously suggested to inhibit protease-activated receptor 2 activation in the skin, which may enhance pigment transfer that results in skin whitening (127,128)

Indeed P5P is required to synthesize P5P from pyridoxine

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