• Skin

  Sun care cream

  Posted by khoikhoa on November 15, 2017 at 8:32 am

  i am making sun care cream. I would like finish product have spf 30. I have somes UV raws like Ethylhexyl Methoxycinnamate,  Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Benzophenone-4, Titannium dioxide. Could you help me ratio of each raw that I have spf 30.

  Thanks so much

  Bill_Toge replied 7 years ago 4 Members · 3 Replies
• 3 Replies

• 

  David

  Member

  November 15, 2017 at 2:31 pm

  Contact e.g. BASF, and ask for starting formulations for SPF30

• 

  Microformulation

  Member

  November 15, 2017 at 4:14 pm

  https://www.sunscreensimulator.basf.com/Sunscreen_Simulator/

• 

  Bill_Toge

  Member

  November 15, 2017 at 7:40 pm

  there is no simple answer to this, simply because the SPF you achieve in practise depends on how efficiently your formula acts as a filter, which in turn depends on how the product flows under shear

  if you can get hold of them, try using encapsulated UV filters, as they take a few variables out of the equation and are supposedly more reliable and consistent

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