• Formulating

  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 2 years, 9 months ago 2 Members · 2 Replies

  • zinc
  • zinc-pca
• 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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