[Dr Catherine Pratt]

Hi there, you can use silicone alternatives like ISOamyl Laurate & the Silc Olives plus you can use Mg Stearate as a binder, water resistant plus non- comodogenic.
hope this helps Catherine 

[Dr Catherine Pratt]

Yes of course you can use silica, but I don’t use it as it is not natural, my clients do not want it. What is it you are after? I think they use hydrogenated silica though, not just plain silica powder. Have a look at the ingredients on a tube.

[Dr Catherine Pratt]

No I have not used that one, but I agree with Mark, the Zn may not have been evenly dispersed. That’s why the Zinclear dispersions are so good, you don’t have to worry about it at all. Worth a try!

[Dr Catherine Pratt]

#tinas you can find great zinc dispersions from Antaria Australia- called Zinclear Zinc Dispersions in Jojoba, MCT & Coco-caprylate. They get samples out to you very quickly.
Hope this helps

[Dr Catherine Pratt]

@MarkBroussard are you saying you use both the guar and xanthan; or just get rid of the guar and use just Xanthan as the only gum?

I don’t think it was specified. Might help?

[Dr Catherine Pratt]

Have you hydrated the Guar properly to begin with? you could increase that too.

[Dr Catherine Pratt]

#bellbottom yes that’s correct & don’t forget to use the metric scale!!

[Dr Catherine Pratt]

@mikethair, please explain?

[Dr Catherine Pratt]

Maybe you can change the perfumery notes to cheaper ones?

[Dr Catherine Pratt]

Sorry did you already mention that..

[Dr Catherine Pratt]

The color change sounds like a pH issue. If you do use zinc, readjust your pH ? You can also use other light emollients like olive & jojoba esters, Shea ester. Besides TiO2 or zinc what about Tapioca, mica, talc?

[Dr Catherine Pratt]

Have you hydrated the Guar gum properly? What are your methods in doing so? Then I can help you.

[Dr Catherine Pratt]

#bellbottom google specific gravity & how it effects the difference between weight (g kg) & volume (mL L). It’s easy once you know how. 

[Dr Catherine Pratt]

#bellbotto, I have just found THE best 100% organic colours that are exotic and hopefully nobody knows about yet. If you want to know about a certain colour that is going to last please message. I also have a beetroot that does not oxidise!! Sorry its taken me the best part of a year to find them thats all.

[Dr Catherine Pratt]

@Microformulation, @crytsabel, I don’t know if it is just in
Australia but you can use Aloe powder extract to increase the organic
percent. We do that with surfactants as well and they also sell
surfactants like decyl glucoside with Aloe in the available water. As
you would know it has been hard to formulate a large organic surfactant
content until this trick was allowed by the certifiers, but still
usually to about 70% organic certification and that is it. In saying
that, you can also use Chamomile, coconut etc powder extract, it doesn’t
just have to be Aloe.

Crystabel sorry that
I thought you were the author of said paper. I actually did think about
that many years ago, actually when I was at uni and we used to do
chemistry experiments that had a biological component in it. It was a
marine chemistry class and we were looking at synthesis of coral and
other marine species like seaweeds etc. The pure chemists had no idea
what was happening and didn’t know the differences in biological
classification, like phylum down to genus and species.

However,
since coming on to this site I have realised that we are still learning
and if that was a problem for them I am sure they would have taught
themselves all about the biological aspects already. And yes so I do get
a bit passionate as they help out a lot of start ups that otherwise
would have no place to go to which all come back to @Perry which we
thank everyday!!Sometimes this site keeps me sane…..

[Dr Catherine Pratt]

@I don’t know if it is just in Australia but you can use Aloe powder extract to increase the organic percent. We do that with surfactants as well and they sell surfactants like decyl glucoside with Aloe in the available water.

[Dr Catherine Pratt]

Oh you guys know I get a bit Passionate about things!

[Dr Catherine Pratt]

Maybe you need less Kaolin clay and more glycerin. Have you got a thickener in there? what is your methodology?

[Dr Catherine Pratt]

Either Glycerin or Propanediol. Just add it to the water and mix, it will add to the moisturisation. Hope this helps.

[Dr Catherine Pratt]

No not necessarily, look why don’t you message me privately 

[Dr Catherine Pratt]

are you in an environment that changes dramatically in temperature? or maybe there is something wrong with the emulsification?

[Dr Catherine Pratt]

Oh thank you I did not know that! Excellent information 

[Dr Catherine Pratt]

OH dear, love apoptosis is not cell death caused from Essential Oils, apoptosis  is programmed cell death. Just like when leaves fall of a tree. The proper word for cell death, meaning a cell that is killed (by as you say Essential Oils) is called autolysis and lysis being the general word for cell death i.e.rupture of the cell wall or membrane.

So when you come to a forum such as this why don’t you sharpen up your own skills with in your own specialisation.

I have studied chemistry, zoology, marine biology, environmental science, did a PhD and then a Research Fellow. However, the chemists on this site know a lot more than I do most of the time.

I suggest you find your own cellular forum and stop saying words you don’t know what they mean and write a real paper from a peer reviewed journal. Then when you have written that and had it critiqued by professionals in the field, then come and talk to us.

Until that time, stop being sooo rude to my well -educated colleagues.

What an embarrassment!!

[Dr Catherine Pratt]

I still use magnetic stirrer hotplates using fleas, but then I am from the Jurassic period. I guess anything that works go for it.

[Dr Catherine Pratt]

Xanthan won’t give a clear gel, sucrogel mentioned by #mircoformulation has a load of other functionalties as well.. definitely look that one up.