Home Cosmetic Science Talk Formulating Product Colour Fading

  • Product Colour Fading

    Posted by padech on January 18, 2014 at 3:06 am

    Dear Everyone,

    I’ve formulate the body cream scrub as the formula referred below. everything look good but one thing, the colour has changed. The original colour is orange but after a few day, the colour has change to be yellowish (red was fade away). Any body know what wrong with this formula.

    INCI            %W/W
    Aqua               66.296
    Allantoin     0.300
    Glycerine     5.000
    Glyceryl Monostearate SE     2.000
    Cetostearyl Alcohol     5.000
    Stearic Acid     2.000
    Oryza sativa (Rice) Bran Oil    5.000
    Helianthus annuus (Sunflower) Seed Oil 5.000
    Trimethylolpropane Tricaprylate/Tricaprate 3.000
    Diethylhexyl Maleate 3.000
    Tocopheryl Acetate 0.300
    Trisodium Ethlyenediamine Disuccinate 0.200
    Bis-PEG-18 Methyl Ether Dimethyl Silane 1.000
    Caprylhydroxamic Acid, Caprylyl Glycol, Glycerin 0.500
    Potassium Hydroxide 0.200
    Fragrance 0.200
    CI16255, CI14720 (Red)         0.002
    CI19140 (Yellow) 0.002
    Polyethylene 1.000
           100.000

    Look forward for every comment.

     
    Anonymous replied 10 years, 5 months ago 5 Members · 10 Replies
  • 10 Replies
  • Chemist77

    Member
    January 18, 2014 at 3:59 am

    Try using a color protector, happens all the time with yellows and more so with reds. BASF has Uvinul grades, Symrise has Neo Heliopans. Choose one suitable for water soluble colors (I suppose that’s what you have used) and try again.

    Looking at the formula I think that the culprit is the fragrance because I don’t see any color devouring component in the above recipe. Check the pH too of the fresh sample and the sample that has lost/changed the color.
  • padech

    Member
    January 18, 2014 at 4:23 am

    Thank @milliachemist for your comment. FYI, my colour solution is 0.5% in water and has 0.1% Benzophenone-4 also. Is that enough? and my product has kept in the plastic jar, mean no light or UV effect. The pH of end product is about 6.5 to 7 either colour faded or not faded one. 

  • Chemist77

    Member
    January 18, 2014 at 4:31 am

    Then try making a sample without the fragrance and check. Also in another trial try increasing the quantity of Benz-4 and add an oil soluble one too to the oil phase. 

    On another note if your plastic jar is opaque then I understand no effect of light or UV. 
  • padech

    Member
    January 18, 2014 at 5:34 am

    Thank @milliachemist, will try.

  • Bobzchemist

    Member
    January 18, 2014 at 6:49 pm

    Generally speaking, Iron oxide pigments are orders of magnitude more stable than the synthetic colors you’re using. 

  • Chemist77

    Member
    January 18, 2014 at 9:25 pm

    @Robert Good point that, but are you of the opinion that he can get the desired shade or tint with the iron oxides. Don’t you think the scope of producing lively and bright shades gets limited with iron oxides? Appreciate your valuable input.

  • Bobzchemist

    Member
    January 19, 2014 at 6:39 pm

    Like many other things in cosmetic chemistry, there’s a trade-off. Iron oxide and other inorganic pigment colors do not fade, but they have a limited palette, and are usually muddy and earthy. Organic pigment/dye colors, both natural and synthetic, on the other hand, provide brilliant, clean shades - but extraordinary measures need to be taken to keep them stable and long lasting, and there’s a chance that you never will get there. So, there’s a choice - which aspect is more important to you?

  • ChemWizard

    Member
    January 19, 2014 at 11:31 pm

    @padech, Benzophenone-4 at pH above 6 turns yellow…you can try lowering your final pH to see if that helps

  • Bill_Toge

    Member
    January 21, 2014 at 1:44 pm

    try using a different red dye; I’ve found FD&C Red 4 and FD&C Red 40 are pretty robust

  • Anonymous

    Guest
    January 31, 2014 at 5:34 am

    u can use combination of -TINOGARD TT-0.2 & CIBA FAST H LIQUID-0.2 IN YOUR FORMULATION AND ALSO VITAMIN E 

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