Home Cosmetic Science Talk Formulating How much zinc PCA gives us 1g zinc like the ordinary Niacinamide 10% + Zinc 1%

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  • How much zinc PCA gives us 1g zinc like the ordinary Niacinamide 10% + Zinc 1%

    Posted by Abdullah on July 19, 2021 at 3:15 pm

    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? 

    Abdullah replied 3 years, 4 months ago 2 Members · 2 Replies
  • 2 Replies
  • Pharma

    Member
    July 19, 2021 at 7:51 pm

    1%/MW of Zn*MW of zinc PCA

  • Abdullah

    Member
    July 20, 2021 at 12:40 am

    Pharma said:

    1%/MW of Zn*MW of zinc PCA

    MW of zinc PCA 321.59484000
    MW of zinc 65.38

    So 4.9188565310492g of zinc PCA gives us 1g zinc. 
    Am i correct?

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