[Abdullah]

PhilGeis said:

Whatever it is, you need to scrap it.  It is clearly adulterated.  And that is a pretty lame presrvative system.

You mean scrap only that red part or the whole batch? 

Spectrastat G2 from Inolex has 
%0.1 caprylhydroxamic acid
%0.75 glyceryl caprylate
%0.15 glycerin 
And they say it is broad spectrum preservative.
So at pH 5, with a chelating agent isn’t that enough for Shampoo? 

[Abdullah]

We locally paint the oxidizable metals with this paint as it prevents the oxidation.
The english name is “Primer based on alkyd resin and iron oxide”. If i paint the iron vessels and fittings with this it will prevent the oxidation but should i do it?
Is it safe?

I have purred some of this Shampoo on a metal which was painted by this and haven’t seen any reaction. 

[Abdullah]

@chemicalmatt thanks

These are the preservative parts
caprylhydroxamic acid %0.1
Glyceryl Caprylate %0.9 
Sodium phytate %0.05 
pH is around 5

I have reduced the amount of sodium phytate from %0.1 to %0.05 in order to reduce the cost as it is expensive but i think it was not a good idea. I will add %0.1 edta to this batch. is that enough or should I add more?

I will search for plastic vessels and fittings. 

[Abdullah]

@Benz3ne thanks a lot

[Abdullah]

@Benz3ne thanks 
We don’t have access to such laboratory that can determine it here. 

Stainless steel tank is not available here as much as I have searched. I would have to purchase one and import from another country which with shipping and other costs it would become very expensive. 

I would try to find a way to remove that iron part in the future. 

Is iron oxide harmful in Shampoo? 

[Abdullah]

[Abdullah]

@Bill_Toge the emulsion has %30 Amodimethicone and %2 Cetrimonium Chloride. 
I wat to add it at %1 which becomes %0.3 Amodimethicone and %0.02 Cetrimonium Chloride. 

[Abdullah]

@”Dr Catherine Pratt” i want it to stay in hair

[Abdullah]

@ngarayeva001 they have both pure Amodimethicone and emulsions but want to purchase the emulsion for my Shampoo. I currently use pq10.
They have viscosities from 1000 up to 100000 cst. Unlike dimethicone the price increases when viscosity increases. 

[Abdullah]

@Pharma thanks 
I have purchased a few kgs of 5 cst dimethicone to reduce tackiness of this o/w lotion. I want to add it in %1 or 2. Here are the ingredients 

Olive oil    %6 
Petrolatum   %4 

Emulsifiers 
Polyglyceryl 4 Laurate
Glyceryl Caprylate
Glyceryl oleate

Water and glycerin and xanthan gum and caprylhydroxamic acid 

The required HLB for olive oil and petrolatum is 7. If i add dimethicone 5cst %2, should I acount it as 5 or 9 for better stability? 

[Abdullah]

Try %0.1 caprylhydroxamic acid. It cover fungi and boosts phenoxyethanol by working as chelating agent

[Abdullah]

@chemistry8303 
Which viscosity Amodimethicone do you have? 
Interestingly in dimethicone the lower the viscosity the higher the price but in Amodimethicone the higher the viscosity the higher the price. 

Viscosities 1500, 2000, 3000, 10000, 30000 and 100000cps is available to choose from. I don’t know which one has better conditioning. 

[Abdullah]

Use lauryl Glucoside instead of coco Glucoside and viscosity would be more than double with half the added salt

[Abdullah]

%3 Cetearyl Alcohol
Remove shea butter 

You are applying it to hair not scalp and then it is rinsed. So don’t wory about irritation.

[Abdullah]

I used to use benzoyl alcohol and DHA at %1 with %0.1 edta and it was enough for a few months preservation

[Abdullah]

My be it is because of your preservative system. 
This preservative doesn’t look enough for me

[Abdullah]

What is the pH of your Shampoo? 
These ingredients at these percentages are not drying

[Abdullah]

Thank you all 
Very informative

[Abdullah]

@chemistry8303 hello 
I currently use pq10 too but want to use Amodimethicone too. I want to know if it is a good idea to use it alone or with PQ10.

Some say pq10 helps silicone deposition. Some say it compets with Amodimethicone for negative charge. I am confused

[Abdullah]

@Andraous is 2-amino-2-methyl-1-propanol just for adjusting pH or it has other function too?

Which carbomer do you prefer? 

[Abdullah]

@Andraous thanks 
I want to add sodium lactate and sodium salicylate in this formula. 
Would carbomer be stable in it? 

[Abdullah]

@chemicallydivinelab thanks 
I did make a sample with cationic guar too. It was not stable. 

[Abdullah]

Bill_Toge said:

the fundamental problem is that you’ve got nothing in the water phase to physically prevent the oil phase from coalescing and separating; what you need is something that will make the product effectively non-fluid at rest (so the emulsion droplets can’t physically move)

there are several possible ways this can be done - how viscous do you want your finished product to be?

Is it the viscosity of thickner in water phase that prevent the oil phase from coalescing and separating, or the yield value? 

[Abdullah]

@Cst4Ms4Tmps4 

I Will answer all your questions that has confused you about me. 

1. A lot of things we know may not be correct. Only by asking and confirmation from someone who knows more than us we can confirm our information is correct.

2. Some questions are not answered or answered but I can’t understand it correctly or i can not do what they have said to do so i try to ask it again and differently.

3. When i do add an ingredient but can’t feel any difference i ask the experts here to make sure if it really have any effect or i am just wasting it hoping it will have an effect. For example evey one says CAPB increase the foam and mildness of SLES but i can’t feel the extra foam or mildness so i ask here to make sure it really has an effect although I can’t feel it. Or SAPDMA i added it in Shampoo at different quantities but couldn’t see any difference or benefit in foam or conditioning so i asked here to make sure if it really has any benefit or the supplier claim are false.

3. I try what ever i ask here. Some before and some after asking. 

Some questions are to know what should i do. Some questions are to confirm what i am doing is correct and not dangerous. For example about making sodium salicylate from salicylic acid. I did make lotion with %1 salicylic acid as mark said. I then did add sodium hydroxide to salicylic acid to make sodium salicylate. About 10g salicylic acid, 3g sodium hydroxide and 10g water. The salicylic acid was completely solubilized in water. I make lotion with it at %2 and the felling was better and less stinging than %1 salicylic acid. I then asked you to make sure what i did was correct and to make sure if neutralization of 1g salicylic acid gives 1g sodium salicylate. But you didn’t say anything about that. So i may need to ask a question about that to confirm what is in my mind is correct. 

And by the way my English is not very good, most of words are outo corrected by mobile keyboard here. So that my also have caused to don’t get the correct idea from what someone has said and i asked it again ????

Hope your misunderstandings about me is solved ????

[Abdullah]

@MarkBroussard thanks a lot