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@Abdullah @Perry44 @chemicalmatt @ketchito @Cafe33 @Graillotion @PhilGeis @Paprik @Chemist77

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@ngarayeva001 need your expertise 😊

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

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Thanks i guess i got your idea however the inci of fragrance is parfum so i meant fragrance, odorant ingredient…

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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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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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your comment isn’t clear for me can you explain more?

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Two 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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I fix hlb 10, the solution is as you said from process.

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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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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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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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Same @Abdullah and I wich to find explanation for that 😊.

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Why adding? And why should be water soluble?

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Exactly @Abdullah did you know that according to practising or sciences?

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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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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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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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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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I did not add preservative and perfume.

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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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Thanks but it can be irritant and also cause coloration in product as I read.

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Yes, for sure however piroctone olamine is not available in my country.

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I guess but even sensicare c1060 works.

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Thanks a lot