Forum Replies Created

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  • Fekher

    Member
    February 27, 2024 at 10:52 am in reply to: Why vaseline became yellow starting with white colour?

    Thanks a lot Perry, I thought that vasline is soo stable versus oxidation.

    So in bad condition of storage can just two months make vasline have oxidation ?

    Then can vitamine or can you propose uv filter to solve the problem?

  • Fekher

    Member
    February 19, 2024 at 3:18 pm in reply to: sodium hydroxide instead of ethanolamine

    Very nice answer from @ketchito

  • Fekher

    Member
    February 18, 2024 at 2:39 pm in reply to: sodium hydroxide instead of ethanolamine

    Write full formulation for better answer.

  • Fekher

    Member
    February 5, 2024 at 12:17 am in reply to: CLEAR HAIR WAX

    @chemicalmatt @Perry44 @Chemist77 @ketchito @Dirtnap1 which is the best alternative for hair wax cetearth 20,cetearth 25,ceteareth 30 or combination and why?

  • Fekher

    Member
    February 4, 2024 at 8:33 am in reply to: How to make Emulsifeir at it own?

    For sure the ratio of sabowax AE is a secret however depending on your oil phase you can make your own successful emulsifiers combination that’s really easier and most important.

  • Fekher

    Member
    January 23, 2024 at 12:17 am in reply to: Polysorbate 20 in spray

    On the top is it foam or liquid? Just try to add polysorbate (may 2%)

  • Fekher

    Member
    January 21, 2024 at 1:26 am in reply to: Crystals in the SPF 50 Cream

    Make élimination test : with making basic sample (sample without any white powders that you have) then divide your sample to samples “the number of white powders you have” . Then add to each sample just one type of powder and watch which powder causes that.

  • Fekher

    Member
    January 13, 2024 at 2:01 pm in reply to: cationic surfactant in a shampoo bar -possible or not?

    I guess you can do it, almost liquid shampoo contains both cationic and anionic surfactants.

  • Fekher

    Member
    October 20, 2023 at 2:29 pm in reply to: New to shampoo formulating, any help appreciated

    May the add of polyquaternium and CAPB with reducing glucoside will give better product.

  • Fekher

    Member
    March 16, 2024 at 8:56 am in reply to: Advise for increasing viscosity of cream

    The level of perfume is near to 0.8% I know that’s soo high but I must work sush level, then sush level is not the reason because with other fragrances with same level I reached very better viscosity. The level of sensicare c 1090 is 0.8% when you make researchement this preservative is effective for bacteria, fungicide and yeast, so why you supposed to add some fungicide?

  • Fekher

    Member
    March 15, 2024 at 9:48 am in reply to: Advise for increasing viscosity of cream

    Thanks for the information about adding fragrance with low shear around the 40°C I didn’t know about it is the any explanation and better process for adding fragrance (lower temperature, other shear …).

    I will do researchement about your in put, just because I should correct quickly I made just try one with ultrez 21 and other with carbopol 996. Ultrez 21 gave better result but for economical reason I made correction with carbomer 996.

    When I find occasion I will try some others corrections with :Hec, Hpmc, parafin wax, Cetearyl alcohol…

  • Fekher

    Member
    March 15, 2024 at 1:37 am in reply to: Advise for increasing viscosity of cream

    Thanks alot, so the list ingredients is:

    Water, mpg, sabowax AE, ceteareth 20,gms,parafin oil, petrolatum, Cetearyl alcohol, edta, citric acid, sensicare c1090, perfume (which cause loosing viscosity) . I eliminated hot process because cream already cold now that’s why I did not go with wax, Cetearyl alcohol…

  • Fekher

    Member
    March 11, 2024 at 12:07 pm in reply to: Hair Matte pomade preservatives

    For water based hair wax can sensicare 1090(phenoxyethanol +ethyl glycerin) do the job for good preservation? I then a combination of 0.8%phenoxyethanol +0.2 benzoate de sodium is it efficient for the same products.

    If not increasing the level of phenoxyethanol +benzoate de sodium can lead to good preservation or did you recommend any adequate preservative for based hair pomade containing 30%of ceteareth 20?

  • Fekher

    Member
    March 7, 2024 at 6:27 am in reply to: Making free sulfate shampoo

    Thanks a lot for you precious answer. Actually i’am open to any good input whatever in thickener, conditioners and surfactants however can you explain me why you will not use any one from listed thickners?

  • Fekher

    Member
    February 5, 2024 at 12:08 am in reply to: What is the Best add for hair wax?!

    Can you please explain to me the reason of using each one glycerin, butyl glycol, peg40 ?

  • Fekher

    Member
    January 23, 2024 at 12:14 am in reply to: Crystals in the SPF 50 Cream

    I did know it before just a little bit of thinking ????: PHENYLBENZIMIDAZOLE SULFONIC ACID

  • Fekher

    Member
    January 23, 2024 at 12:11 am in reply to: Crystals in the SPF 50 Cream

    I suggest to make 1 kg sample then if you don’t find the problem I will go for that the cause is changing process from small sample to industrial one.

    Changing process ( temperature, pressure,type of stiring, speed of stiring, order of adding ingredients…)

  • Fekher

    Member
    January 13, 2024 at 12:09 am in reply to: Why the product become thicker after heating

    Thanks a lot for the interesting reference, actually I never ask about references before I make efforts and researchement however I did not find any interesting ones. In may case I did not use any water soluble thickener however I found the same curve of viscosity said in your reference however I predict that in one very high speed stiring the curve will decrease and we will have same curve with salt curve.

  • Fekher

    Member
    January 11, 2024 at 10:26 am in reply to: Why the product become thicker after heating

    Thanks a lot, actually I found some articles talk about the relation between viscosity(level of oil, temperature of emulsion) and but I did not found good one which matches between viscosity and stiring speed and viscosity.

    Just I watch that in hair gel when stiring is too high forgot how the day goes exact speed the viscosity of product decrease. For cream I watch that the viscosity of cream increase only, going from 0 tr/min to 2000 tr/min as string speed the emulsion started in 70 C.

    Any reference for the relation between the viscosity of emulsion and the speed /time of stiring it will be exciting.

  • Fekher

    Member
    January 9, 2024 at 1:38 pm in reply to: Why the product become thicker after heating

    Yes it is Cetrimonium chloride, it was just manual stiring for five minutes.

    However today i found out new phenomenon that the time and the speed of stiring have a huge effect on the viscosity of emulsion so could you explain me more the phenomenon please?

  • Fekher

    Member
    January 9, 2024 at 1:32 pm in reply to: Why the product become thicker after heating

    Yes it is hair conditioner and CATC is citramonium chloride.

  • Fekher

    Member
    October 16, 2023 at 2:38 pm in reply to: Polysorbate 80 or Kolliphor RH 40 as a surfactant?

    Soo surprised from the link so do you guess it is the same for Ceteareth-25? actually almost water based pomade contains more then 20%

  • Fekher

    Member
    October 13, 2023 at 2:46 pm in reply to: Suggest reason(s) of those problems

    Thanks a lot for your comments.

  • Fekher

    Member
    October 13, 2023 at 2:44 pm in reply to: Suggest reason(s) of those problems

    Thanks a lot for your suggestion, especially uv filtring packaging nice new information ????

  • Fekher

    Member
    October 12, 2023 at 11:45 am in reply to: Suggest reason(s) of those problems

    The level of cocoamide DEA is low near to 1% so I don’t go with your guess but maybe.

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