Cosmetic Science Talk

Cosmetic Science discussion forum. For people who want for formulate cosmetics and get advice from other formulators around the world.
*** Click on one of the three Forum categories below to start a new discussion ***

Home Cosmetic Science Talk Formulating Does solution of 1% powdered dye need preservative?

Tagged: ,

  • Does solution of 1% powdered dye need preservative?

    Posted by Abdullah on November 1, 2021 at 9:03 am

    Just to know, if i make a solution of 1% powdered dye in water and store it for later use in shampoo and lotion, does it need preservative?

    Abdullah replied 1 year, 7 months ago 2 Members · 2 Replies
  • 2 Replies