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How much zinc PCA gives us 1g zinc like the ordinary Niacinamide 10% + Zinc 1%
The ordinary Niacinamide 10% + Zinc 1%
LOI
Aqua (Water), Niacinamide, Pentylene Glycol, Zinc PCA, Dimethyl Isosorbide, Tamarindus Indica Seed Gum, Xanthan gum, Isoceteth-20, Ethoxydiglycol, Phenoxyethanol, Chlorphenesin.How much zinc PCA in a formula like this equals 1% zinc?
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