

Fekher
Forum Replies Created
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Fekher
Professional Chemist / FormulatorOctober 24, 2024 at 3:23 am in reply to: Viscosity problem in emulsion -
Fekher
Professional Chemist / FormulatorSeptember 18, 2024 at 12:06 pm in reply to: What is the best actif or combination for whitening cream?@ngarayeva001 need your expertise 😊
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Fekher
Professional Chemist / FormulatorOctober 26, 2024 at 8:16 am in reply to: Viscosity problem in emulsionThanks i guess i got your idea however the inci of fragrance is parfum so i meant fragrance, odorant ingredient…
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Fekher
Professional Chemist / FormulatorOctober 26, 2024 at 8:09 am in reply to: Why ppg 15 stearyl ether?Excecatly that is What i’am guessing something related directly with aluminum chlorohydrate,thanks a lot for your precious comment and for sure soo helpfull.
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Fekher
Professional Chemist / FormulatorOctober 25, 2024 at 6:22 pm in reply to: Why ppg 15 stearyl ether?Actually almost you said true about it is lighweight, emollient and solvent however i Never read That There is an evidence between Lightweight oil and anti irritation effect ، also all function said can be done by other ingredient sush as c12-15 alkylbenzoate.So my problem is wich thing has ppg 15 that others hasn’t May as you said something related of aliminum chlorohydrate.
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Fekher
Professional Chemist / FormulatorOctober 25, 2024 at 8:20 am in reply to: Viscosity problem in emulsionyour comment isn’t clear for me can you explain more?
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Fekher
Professional Chemist / FormulatorOctober 24, 2024 at 7:30 am in reply to: Viscosity problem in emulsionTwo productions for shared formulation , but the curve is repeated for others creams always in evry production ( at T=50 °C the viscosity drop dramatically where there is no add to any ingredient preservative , parfum..) .
And there is only production and laboratory scale .
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Fekher
Professional Chemist / FormulatorOctober 2, 2024 at 10:03 am in reply to: What makes emulsion loose viscosity?I fix hlb 10, the solution is as you said from process.
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Fekher
Professional Chemist / FormulatorOctober 2, 2024 at 9:52 am in reply to: What makes emulsion loose viscosity?Thanks a lot for your comment, I wrote full lol but when cream loose viscosity I didn’t add preservative and perfume, about stirring it needs high speed stirring to get good viscosity 600 rpm is low.
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Fekher
Professional Chemist / FormulatorSeptember 23, 2024 at 8:16 am in reply to: What is the best actif or combination for whitening cream?I already make a lot of researchment about vitamin c and (Mpg, glycerin) will be choice.
Now the problematic is it will be better to use maximum of solvents enhancers for a synergy or it will be better to use the best (one or two) enhancer(s) alone.
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Fekher
Professional Chemist / FormulatorSeptember 23, 2024 at 7:53 am in reply to: What is the best actif or combination for whitening cream?Interesting just for the first combination the form Vitamin c must have pH compatible with the compatible pH of alpha arbutin.
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Fekher
Professional Chemist / FormulatorSeptember 22, 2024 at 12:25 am in reply to: What makes emulsion loose viscosity?Same @Abdullah and I wich to find explanation for that 😊.
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Fekher
Professional Chemist / FormulatorSeptember 21, 2024 at 9:12 am in reply to: What is the best actif or combination for whitening cream?Why adding? And why should be water soluble?
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Fekher
Professional Chemist / FormulatorSeptember 21, 2024 at 9:09 am in reply to: What makes emulsion loose viscosity?Exactly @Abdullah did you know that according to practising or sciences?
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Fekher
Professional Chemist / FormulatorSeptember 19, 2024 at 4:51 pm in reply to: What makes emulsion loose viscosity?I’am not making massage cream however why massage cream use parrafin oil?
When adding dimethicone 350 to cream the viscosity decrease more. Can you guess why?
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Fekher
Professional Chemist / FormulatorSeptember 18, 2024 at 11:45 am in reply to: What makes emulsion loose viscosity?Actually I have very close formulation with preolatum instead paraffin oil and I did not face a problem actually I got with petrolatum viscous cream. About recristalisation all solids have fusion temperature far from 70 °C then it can not happen. ( today I just do same process described just increasing the speed of stiring and I got better results.)
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Fekher
Professional Chemist / FormulatorSeptember 19, 2024 at 8:34 am in reply to: What is the best actif or combination for whitening cream?Actually it is very expensive ingredient more then all I wrote and it it is more difficult to use in formulation then a lot of others.
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Fekher
Professional Chemist / FormulatorSeptember 19, 2024 at 7:59 am in reply to: What is the best actif or combination for whitening cream?Thanks a lot @ngarayeva001 very interesting share and smart point of improvement the quality with solvent I have ipm other not is it important to use the other or can you input others solvents.
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Fekher
Professional Chemist / FormulatorSeptember 18, 2024 at 12:12 pm in reply to: What makes emulsion loose viscosity?I did not add preservative and perfume.
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Fekher
Professional Chemist / FormulatorSeptember 18, 2024 at 12:27 am in reply to: What makes emulsion loose viscosity?Thanks.
For making cream the order is :
1)heating separately oil and water phase to 70°C(Except perfume and preservative)
2)take both oil and water phase far from heat source(cooling start very fast it needs near to 30 min to reach 40°C)
3)start stiring with 600 rpm speed
4) between 50° C and 40 °C emulsion became thick as usual(stiring 600 rpm) .
5)from 40° C or lower emulsion became thinner( stiring 600 rpm without adding preservative and perfume)
For conditioning hair : the chronology of viscosity is in cooling phase.
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Fekher
Professional Chemist / FormulatorSeptember 10, 2024 at 3:16 pm in reply to: What is the best actif or combination for whitening cream?Thanks but it can be irritant and also cause coloration in product as I read.
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Fekher
Professional Chemist / FormulatorSeptember 10, 2024 at 3:12 pm in reply to: What is the best actif or combination for whitening cream?Yes, for sure however piroctone olamine is not available in my country.
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Fekher
Professional Chemist / FormulatorSeptember 10, 2024 at 3:06 pm in reply to: What is the best actif or combination for whitening cream?I guess but even sensicare c1060 works.
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Fekher
Professional Chemist / FormulatorSeptember 9, 2024 at 8:31 pm in reply to: What is the best actif or combination for whitening cream?Thanks a lot
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Fekher
Professional Chemist / FormulatorSeptember 9, 2024 at 7:36 pm in reply to: What is the best actif or combination for whitening cream?I will not use Gluconolactone (PHA) for stability reason, ph will be in the optimal range of standard cream between 4.8 and 5.3.