Forum Replies Created

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  • Fekher

    Professional Chemist / Formulator
    November 12, 2024 at 2:56 pm in reply to: Strange phenomenon in hair conditioner formulation

    The right one is hair conditioner without carbomer and the left one with carbomer

  • Fekher

    Professional Chemist / Formulator
    November 11, 2024 at 5:56 am in reply to: Any solution for colour changing in hair balsam
  • Fekher

    Professional Chemist / Formulator
    November 9, 2024 at 11:47 pm in reply to: Title: Recommendations on Chemists Corner Course and Cosmetic Science Programs

    Wish you will give add to forum and share some knowledge as you are experienced pharmacist.

  • Fekher

    Professional Chemist / Formulator
    November 9, 2024 at 11:40 pm in reply to: Title: Recommendations on Chemists Corner Course and Cosmetic Science Programs

    Just I recommend to follow this forum it contains greats experts that can you learn Evry time. Really thanks to @Perry44 then thanks to experts whom share knowledge for who deserve.

  • Fekher

    Professional Chemist / Formulator
    November 8, 2024 at 6:27 am in reply to: Crystallization of Nicnamide (Vitamin B3) serum

    Actually niacinamide mixcible with water so there is no reason to not dissolve.

  • Fekher

    Professional Chemist / Formulator
    November 6, 2024 at 11:40 pm in reply to: Problem in Roll on
  • Fekher

    Professional Chemist / Formulator
    November 3, 2024 at 11:08 am in reply to: Hyaluronic acid separation

    What is the benefit of using caprylic capric triglycerides in facial cleanser?

    I find it both:wasting of money with decreasing the effeciency of the cleanser.

  • Fekher

    Professional Chemist / Formulator
    October 28, 2024 at 3:41 am in reply to: HELP FORMULA_SHAMPOO BAR MUSHY TEXTURE/DOESN'T GET HARD

    too much the level of CAPB i guess reducing it will give harder texture.

  • Fekher

    Professional Chemist / Formulator
    November 12, 2024 at 2:04 pm in reply to: DEODORANT- some help, please

    Do you think that only 5% TEC at pH <5 can make efficient deodorant?

  • Fekher

    Professional Chemist / Formulator
    November 11, 2024 at 11:59 pm in reply to: Any solution for colour changing in hair balsam

    Isn’t too low the level 0,01% ?

  • Fekher

    Professional Chemist / Formulator
    November 11, 2024 at 11:49 pm in reply to: Any solution for colour changing in hair balsam

    Awsome as always @chemicalmatt actually the colour is a combination between green and yellow. Is benzephenon-4 is a solution for other colours? And what about Benzyl salycilate?

  • Fekher

    Professional Chemist / Formulator
    November 11, 2024 at 2:49 pm in reply to: Any solution for colour changing in hair balsam

    Hair balsam is hair conditioner after shower.

    Ingredients: Water, Cetearyl Alcohol, Cetrimonium Chloride, Ceteareth-20, Panthenol, Shea Butter, Aloe Barbadensis Leaf Juice, Polyquaternium-7, MPG, Citric Acid, Sodium benzoate, Potassium Sorbate, Methylchloroisothiazolinone, Methylisothiazolinone,<wbr>Colorant, Fragrance.

  • Fekher

    Professional Chemist / Formulator
    November 7, 2024 at 4:28 pm in reply to: Problem in Roll on

    Yes you have right about ticket we correct it. The product was storaging by customer so I didn’t know exactly the conditions but my guess it was bad conditions actually the lot contains more then 6000 pieces and just less then 20 pieces lost stability….

  • Fekher

    Professional Chemist / Formulator
    November 7, 2024 at 2:45 pm in reply to: Problem in Roll on

    Actually for this lot it didn’t contain Piroctone Olamine, Glyceryl Laurate just sodium benzoate and texture will be worse also what I learned that viscosity enhancer improve stability not?

    Why you want to delete Glyceryl Laurate and hpmc?

  • Fekher

    Professional Chemist / Formulator
    November 4, 2024 at 3:13 pm in reply to: What is the best actif or combination for whitening cream?

    For sure you must search about pH compatibility and also ingredients compatibility then the answer almost you can’t.

  • Fekher

    Professional Chemist / Formulator
    October 30, 2024 at 4:01 pm in reply to: Viscosity problem in emulsion

    I guess it didn’t break, as I said too near texture and viscosity.

  • Fekher

    Professional Chemist / Formulator
    October 30, 2024 at 3:55 pm in reply to: Free Aluminum cream deo

    Thanks for add.

  • Fekher

    Professional Chemist / Formulator
    October 29, 2024 at 9:55 am in reply to: Free Aluminum cream deo

    thanks for five and about 2 zinc oxide in adequat level and formulation will not make coloration in dark clothes.

  • Fekher

    Professional Chemist / Formulator
    October 29, 2024 at 9:53 am in reply to: Free Aluminum cream deo

    i saw such description that says use TEC at ph <5 , however i find other paper that says the ph of TEC is between 6 and 8 … actually i got effective deo using TEC and zinc oxide may the deodorant activity is from only Zinc oxide .

    About the activity of TEC i guess may by application underarm the ph changes and TEC will be actif?

  • Fekher

    Professional Chemist / Formulator
    October 29, 2024 at 9:40 am in reply to: Free Aluminum cream deo

    i don’t want to make irritant deo for sure i want to kow the information what is the maximum ph in cream deo . For ph =8 is not necessary irritant.

  • Fekher

    Professional Chemist / Formulator
    October 28, 2024 at 9:09 am in reply to: Viscosity problem in emulsion

    As always , awsome comment from expert @ketchito. Thanks a lot for sharing your interesting knowledege , my big guess was about cooling ratio (because it is the most important difference between labo and production scale) . about ratio (turbine diamater /reactor diamater) laboratory > ratio (turbine diamater /reactor diamater) production

  • Fekher

    Professional Chemist / Formulator
    October 28, 2024 at 8:23 am in reply to: Viscosity problem in emulsion

    Actually it is not really problem because we got nice texture (better texture then laboratary sample) and viscosity is acceptable just i want to understand the phenomen . About the speed of turbine i guess it is not the reason because we turn off it at high temperature where the viscosity reached the maximum of viscosity so the decreasing of viscosity is in function with temperature decreasing only in that case .

    just we took two samples from production one without turn on turbine after 50 °C and one with then there is not really important difference between them.

  • Fekher

    Professional Chemist / Formulator
    October 28, 2024 at 2:57 am in reply to: Viscosity problem in emulsion

    you are welcome , waiting from experts comments.

  • Fekher

    Professional Chemist / Formulator
    October 26, 2024 at 2:48 pm in reply to: Why ppg 15 stearyl ether?

    That’s kind i already thanks to Allah made very effective deo just i always want to understand details.

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