• Formulating

  How to dissolve Ascorbic Acid in water?

  Posted by Heath0o7 on June 15, 2024 at 3:41 am

  Hi all,

  I’m trying to make a vitamin C Serum, but I’m having trouble dissolving AA in water without using heat. How do you dissolve it? My formula is as follows: the pH is 3.4 and it’s a 30g batch

  Distilled water
  
  Propylene Glycol
  
  Euxyl PE 9010
  
  Hexanediol
  
  Tetrasodium Glutamate Diacetate
  
  HEC

  Phase B:

  Ceteareth-20

  Polysorbate-80

  Squalane

  Phase C:
  
  Euxyl k712
  
  Fragrance oil
  A.Arbutin
  Ferulic Acid 0.5%
  Tocopherol
  Ascorbic Acid 18% (15% free acid)
  
  Sodium Hydroxide

  fareloz replied 1 week, 2 days ago 2 Members · 1 Reply

  • ascorbic acid
  • serum
  • vitamin c
• 1 Reply

• 

  fareloz

  Member

  June 16, 2024 at 7:03 am

  Ascorbic acid is very soluble in water. If you have problems that means you have too little of water to dissolve it.

  As I see you are trying to make a tweaked Skinceuticals formula. They use Ethoxydiglycol, while you are using Propylene Glycol. AA is more soluble in ethoxy while not really soluble in PG. Plus your percentage of AA is higher (18% comparing to 15% of Skinceuticals).

  Ethoxydiglycol is hard to source and it is pricey, so instead of it and PG I can suggest using Propanediol. Ascorbic acid has good solubility in it, but it might take some time to stir.

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