[Fekher]

@PhilGeis please give me your opinion about combination between phenoxyethanol and benzyl alcohol for pH between 5 and seven and is sensicare 1060 Piroctone Olamine (and) Phenoxyethanol (and) Glyceryl Laurate is effective in same range 5_7

Thanks a lot for your precious share

[Fekher]

@Paprik @Abdullah @ketchito @Perry44 @chemicalmatt @Cafe33 @ngarayeva001 any add please?

[Fekher]

Supposed that a lot of listed thickeners works in this pH range.

[Fekher]

This is awesome answer from the expert @PhilGeis finally a trusted answer, then according to my vocabulary phenoxyethanol and sensicarec1090 are not board spectrum.

Just disappointment from ul prospector supposed reference. The most trusted site according to your comment is makingskincare. (the screenshot from it)

Screenshot_20240324-195343.jpg 326 KB Image File - Click to view

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Thanks a lot @PhilGeis

@Graillotion so I want to know if there is contradiction between references

How to know the truest?

For example according to this discussion phenoxyethanol is not board spectrum same according to humble me and makingskincare however in ulprospector it is described as board spectrum. Same thing about sensicare c1090 it is described as board spectrum however some professionals said that is not.

Really as professional that is soo confusing.

Any help

@Perry44 @Paprik @ketchito @Abdullah any one else.

[Fekher]

It is free sulfate product a requirement from customer.

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Thanks @Abdullah for sure as professional I will not take information for who/what ever. I’am learning from supposed reference sush ul prospector, technical sheet of supplier and professional, books the problem for me when I find contradiction between all this. So I find the truest way asking @PhilGeis and books.

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<div>@Cafe33 thanks a lot for amazing sharing.</div>

I just worked with ultrez 20 in cream, that’s why maybe I did not face fish eyes problem?!

Then do you think that ultrez 20 for 10% free sulfate active surfactants can give excellent sensory feeling and stability as carbopol edt 2020 it did?

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@Paprik I worked with ultrez 20 which seems too near to edt 2020 so there is no special just high shear for 15 to 25 min with neutralisation and you succeed.

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Whatever I will not use sodium coco sulfate ???? and OK boss I will try to make professionals keeping comment.

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@Cafe33 It is very interesting tip just i’am familiar working with carbopol so the instructions you meant high shear and adequate neutralisation or more for carbopol edt 2020?

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Thanks a lot @soapworksdupe

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Thanks a lot @Paprik just technically sodium coco sulfate is not free sulfate product may it is commercially free sulfate?!

About may plan i’am thinking about using alpha olefin sulfonate, then may CAPB, and or glucoside same for sodium lauroyl sacrosinate.

As thickener I guess I I’ll try alot, cationic guar, Hpmc, ultrez 20,saboderm sho, (Xanthan+guar) gum, versathix.

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Thanks a lot @Abdullah

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Thanks @Abdullah if you can make screen shot the link did not open.

[Fekher]

Thanks for share

[Fekher]

I’am already don’t trust preservative supplier marketing because it will just try to make his products perfect. the contradiction i found in trusted references as example ulprospector says that phenoxyethanol effecient for gram+, -, yeat and mold however makingskincare and humble and me says that it is not efficient for fungi(yeast and mold) so how can I know the correct generally if I can not buy the book(the of it please) ?<div>

Then according to you phenoxyethanol and sensicare c1090 are they efficients for gram+, -, YMF or efficients only for gram+, -?

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My question is approach one if I find a contradictory description of the field of activity of preservative (one says that the preservative is effective only for gram+,- and the other says that it is effective even with yeast and mold) how to know the correct description? so here we are talking about a specific thing and not a vague term.

@PhilGeis @Graillotion

[Fekher]

The let’s give you according to me as professional what i mean by board spectrum that : preservative cover gram+, gram - , yeast, mold, so it did not need to combine with other preservative.<div>

So can I have answer depending on this definition because there is no answer in last comment according to my definition.

Then it is not true that always preservative described as board spectrum as example phenoxyethanol in humble and me is described as not board spectrum and the same for other preservatives.

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[Fekher]

What is the reference of that curve please?

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Thanks a lot for the precious answers @PhilGeis @Abdullah so the emulsion don’t solve the solibilty problem of IPBC?( It seems paraben are the best)

[Fekher]

What do you think about 0.8% sensicare c 1090 as cosmetic preservative? @PhilGeis and @Abdullah take look for this I guess it is reference

https://www.ulprospector.com/fr/na/PersonalCare/Detail/124608/748120/SENSICARE-C-1090

ulprospector.com

SENSICARE C 1090 de Chemipol - Produits cosmétiques & de soins

SENSICARE C 1090 is a broad spectrum preservative for cosmetics specifically developed for controlling bacterial, fungal, and yeasticidal growth. Preser...

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Thanks a lot @PhilGeis for IPBC for leave on is it good 0.1% level?

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Answer late better then not answering, I hate soap effect in cream almost reference use it between 0.2% and 0.3% the xanthan gum may I will try your level 0.4%.

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So ipbc and parabens are allowed which type of parabens you recommend and their levels, and will be good combination 0.1% IPBC and 0.8 %phenoxyethanol. (I don’t know if I can find IPBC)