• Formulating

  Help with an SPF15 serum formula

  Posted by katerinak on June 15, 2020 at 12:22 am

  Hi all!

  I’m looking at creating an SPF15 serum for personal use - the formula is from the Institute of Personal Care Science:

  Water to 100%
  Glycerine 5%
  Keltrol CG-SFT 0.6%
  XPCoco65 20%
  Dermofeel Sensolve 6%
  Fluidifeel Easy 3%
  Ephemer 1%
  Naticide 1%
  Dermofeel Toco70 0.5%

  They indicate that if you can’t get XPCoco65 you can use 13% microfine zinc oxide dispersed in 7% coco caprylate/caprate - I don’t have coco caprylate/caprate and am trying to figure out what can be substituted.

  It is my understanding that it is an emollient with silicone-like skin feel. Could I use a silicone alternative like Hydrogenated Ethylhexyl Olivate (and) Hydrogenated Olive Oil Unsaponifiables? Or would it be possible to simply make a dispersion in something like Caprylic/Capric Triglycerides?

  The zinc oxide powder I have is the Z-Cote HP1 which is oil soluble.

  Many thanks in advance!
  

  katerinak replied 4 years, 6 months ago 2 Members · 2 Replies

  • formula help
  • spf
• 2 Replies

• 

  MarkBroussard

  Member

  June 15, 2020 at 12:45 am

  You can use either CCT or C 12-15 Alkyl Benzoate as a carrier for the ZnO

• 

  katerinak

  Member

  June 15, 2020 at 12:54 am

  @MarkBroussard thanks so much! 

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