• Formulating

  critique preservatives for my dry shampoo

  Posted by Climatechangeanxiety on February 3, 2025 at 2:09 pm

  70% corn starch

  15% arrowroot powder

  13% kaolin

  1% fragrance

  0.15% potassium sorbate

  0.30% sodium benzoate

  this is an anhydrous, leave-on product. Thank you!

  PhilGeis replied 1 month ago 3 Members · 2 Replies
• 2 Replies

• 

  Perry44

  Professional Chemist / Formulator

  February 4, 2025 at 3:16 pm

  In truth, without water the sodium benzoate and potassium sorbate aren’t doing much.

• 

  PhilGeis

  Member

  February 8, 2025 at 5:58 am

  Preserve the powder - assume concerned re. mold growth under humidity. Parabens might be a better choice. This is something you prob try to determine on your own.

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