[Chemist77]

@Micro like the logic

[Chemist77]

@ELDEskin I am sorry but I cant really suggest any natural stuff, not really well versed with the natural concept.

[Chemist77]

Add a little dimethicone (DC 200, 350CS), it should help.

[Chemist77]

@Robert Good point that, but are you of the opinion that he can get the desired shade or tint with the iron oxides. Don’t you think the scope of producing lively and bright shades gets limited with iron oxides? Appreciate your valuable input.

[Chemist77]

Then try making a sample without the fragrance and check. Also in another trial try increasing the quantity of Benz-4 and add an oil soluble one too to the oil phase. 

On another note if your plastic jar is opaque then I understand no effect of light or UV. 

[Chemist77]

Try using a color protector, happens all the time with yellows and more so with reds. BASF has Uvinul grades, Symrise has Neo Heliopans. Choose one suitable for water soluble colors (I suppose that’s what you have used) and try again.

Looking at the formula I think that the culprit is the fragrance because I don’t see any color devouring component in the above recipe. Check the pH too of the fresh sample and the sample that has lost/changed the color.

[Chemist77]

@Krupa & Perry true and lets hope its just a flash in the pan.

[Chemist77]

http://www.hindustantimes.com/world-news/fairness-creams-and-lipsticks-contain-toxic-heavy-metals-reveals-study/article1-1173238.aspx

The source. 

[Chemist77]

@Krupa honestly I haven’t tried ethanol with xanthan but no harm in trying, and yes ethanol has a magical effect on PVA containing facial mask which is extremely aerated before addition of ethanol. Since there are no cationics involved Veegum can be tried too. Its anyway all about trial and error.
Or how about a normal facewash and adjust the pH with glycolic acid instead.

[Chemist77]

@alchemist since they didn’t know what they meant, they used the terms core competence and identity which are good for marketing I suppose.

[Chemist77]

@Chemwizard I see Ammonium Glycolate as a salt which is going to thicken the ALS that you have in the ing list mentioned by Perry, for your low pH product your glycolic acid is going to diktat the pH and not any salt I guess. As for Xanthan I knew you would complain about the final texture but then it is wonderful at such low pH. You might play with other ingredients to adjust the feel of the final formula. Optimize and proceed, and please do let us know how it came out. 

[Chemist77]

@Krupa Guess you have a winner there, I mentioned few days back that xanthan gum works wonderful with DHA which needs a very low pH for stabilization.
@Chemwizard Try to use xanthan and see if it works in your formula.

[Chemist77]

No harm in trying, though another good choice I could think of is polyglyceryl 3 diisostearate.

[Chemist77]

@Perry He hasn’t mentioned the viscosity but guess he has to suspend some pearls as well, looking at the ingredient list mentioned by you I suspect if it would have a body enough for suspension of pearls. Or maybe ammonium glycolate has been used to thicken ALS in addition to the thickening by cetyl and stearyl alcohol. 

Appreciate further comments and opinions. 

[Chemist77]

I have seen very few aqua based body splashes, if you add a little amount of ethanol denat., you can drastically cut down on solubilizer. It will reduce foaming and at the same time enhance the solubility of EO and fragrance. I read it somewhere once that ethanol is a wonderful antifoaming agent, and I tested and witnessed the same in my peel off mask.

[Chemist77]

Its something about PR as well, although if you see in most of the barber salons the disinfecting solution containing BKC is used extensively and I suppose its quite effective as well.

[Chemist77]

Is it hydtoalcoholic or just water based, because if it is water based then it is very difficult to avoid foaming. Even PEG-40 Hydrogenated Castor oil would act likewise.

[Chemist77]

They are basically castor oil dispersion, and milled in a triple roller mill to have a spec free usage in the final product. 

By base you mean the lipstick or lip gloss base?????

[Chemist77]

Thanks.

[Chemist77]

@joseg I have had the same issues with stearic acid emulsion, suggest you add a very little quantity of either ceteareth-12 or 20 and check the structure of your emulsion again. In my emulsions you can say the ethoxylated fatty alcohol irons out the wrinkles of my stearic acid emulsion and makes it uniform. Once you have a desired appearance we move on to your other problem. Although I have slightly different formula but no harm in trying. I use Ceteareth-20.

[Chemist77]

what is the approximate viscosity???

[Chemist77]

Denaturing is to make it unfit for human consumption, cant think of any other advantage.

[Chemist77]

These 2 are commonly used because there is hardly any or no smell of the denaturant. Secondly denatured with methanol can be used as methanol smells very close to ethanol but since methanol is a dangerous chemical it is generally avoided. Read it somewhere that methanol can be absorbed by the skin too and it can harm drastically. This last point though needs to be ratified by mentors and experts here. I have seen in some countries people dying of hooch consumption which is basically methanol or partly fermented liquor.

[Chemist77]

The most commonly used that I have seen are 39C & 40B. The difference is the denaturant used to denature the ethyl alcohol to render it unfit for human consumption. Different denaturants are used like brucine, quassin, IPA, methanol and so on and so forth. 39C is denatured with DEP and 40B is denatured with t-butyl alcohol & Bitrex.

[Chemist77]

Perry do you have anything detailed about zeta potential as well?