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Home Cosmetic Science Talk Formulating Color and makeup Diluting FD&C Color with water without separation

  • Diluting FD&C Color with water without separation

    Posted by JOJO91343 on May 15, 2022 at 2:38 am

    Is there anyway we can dilute FD&C colors (Like Blue no.1, Red no. 6, Red no. 33, Red no. 5, Yellow no. 5, Yellow no. 6, etc.) without separation.  We tried different Concentration Starting from 10% and down to1% using cold and hot D.I Water, but, once you put the solutions into clear bottles, all the colors settle down.

    OldPerry replied 1 year ago 4 Members · 4 Replies
  • 4 Replies
  • Herbnerd

    May 15, 2022 at 5:37 pm

    Are you using lakes or dyes? Lake colour by dispersion but are insoluble in water but will disperse through powders or are suspended in creams. Lakes will separate out in water. Dyes will dissolve into the water phase

  • MarkBroussard

    Professional Chemist / Formulator
    May 15, 2022 at 6:52 pm


    Looks like you are add way too much dye.  Cut that down to 0.01% or so.

  • JOJO91343

    May 15, 2022 at 10:08 pm

    I am using Dye.  I may try 0.01%
    Thank you

  • OldPerry

    Professional Chemist / Formulator
    May 16, 2022 at 12:03 am

    1% would be the max