[Abdullah]

@jemolian sodium phytate is not compatible with cationic surfactants. 

Do you know any chelating agent other than caprylhydroxamic acid which is not anionic?

[Abdullah]

@chemicalmatt @MarkBroussard thanks. 

I am using it in a leave on product. The method is i add salicylic acid to water, add 0.29g sodium hydroxide for each gram of salicylic acid to dissolve it. When dissolved then bring the pH down to 4 with citric acid. Would dissolving salicylic acid this way be equal effective as if i dissolve it with butylene glycol and adjust the pH to 4?

[Abdullah]

Use it with another Preservative. 
At that pH you may use it with Ethylhexylglycerin or caprylyl Glycol or Paraben or caprylhydroxamic acid. 
I don’t know other preservatives that can be combined with phenoxyethanol and effective at high pH.

[Abdullah]

Tea tree oil at that amount is not the problem. 

The problem is the Product is contaminated because the weather is hot and this product doesn’t have preservative. 

Increase the phenoxyethanol to %1 and see if the problem is solved.

[Abdullah]

Allantoin is also soluble in surfactants. I am using it in lotion @ %0.5 without any problem. For system that doesn’t have surfactant and the solubility would be less than %0.5.

[Abdullah]

@Paprik may i ask why pH 5.5 is more skin friendly while pH of skin itself is 4.7?

[Abdullah]

Use phenoxyethanol. 

[Abdullah]

@abierose @Perry thanks

[Abdullah]

@Perry @Graillotion you are right but i wanted to know this specific answer.

I thought stearyl and cetearyl increase the viscosity more than Cetyl Alcohol because they have higher melting point but yesterday i saw this post on makingskincare.com website.

Stearyl alcohol produces a whiter and more opaque product due to it’s longer carbon chain length. Cetyl alcohol breaks more easily when applied so gives a quicker spread and can hold onto more water than stearyl alcohol as it is more hydrophilic. This results in a higher gel phase which means a higher viscosity. However stearyl alcohol has a different crystalline structure and is less polar resulting in a a more stable viscosity, unlike cetyl alcohol whose viscosity can increase over time.

I currently use cetearyl alcohol 30/70.

This formula
Petrolatum %5
Coconut oil %2
Dimethicone %1
Polyglyceryl 6 distearate %1
Glyceryl stearate %1
Cetearyl alcohol %3
Glycerin %20
Preservative, essential oil and water. 
pH 5 

Would the viscosity increase or decrease if i use Cetyl Alcohol instead of cetearyl alcohol? 

[Abdullah]

At what percentage have you used geogard ECT and how old is your son? 

I also don’t like benzyl alcohol on my skin. 

You can use a blend of phenoxyethanol with other preservatives.

[Abdullah]

They reduce the viscosity. 
I wouldn’t use cmea more than %1or 2.

[Abdullah]

That is not homogenizer. The least expensive lab homogenizer is around $500.

[Abdullah]

@chemicalmatt thanks 
It is

 %5 CAPB= %1.5 active surfactant
%3 lauryl Glucoside= %1.5 active surfactant
%10 AOS= %9 active surfactant.
Eo= essential oil lavender. 

Should I increase the amount of surfactants? It would become %18 active surfactant.

Guar gum was in this formula with SLES to stabilize EGDS. As this one was opaque it self i didn’t use EGDS in it. I made sample without guar gum too. Same problem. 

[Abdullah]

@chemicalmatt thanks. I wanted to add surfactants first and then guar gum and cationic guar gum. It was more convenient this way. So now i should add ALS after adding guar gums and adjusting there pH. 

[Abdullah]

@jemolian thanks

[Abdullah]

Is it %15.5 powder AOS or liquid? 
How is the foam of it?
Does it make clear Shampoo or opaque?

I am recently working on it and salt decreases the viscosity. 

[Abdullah]

Argan oil doesn’t have anything special to justify the high price. 
Hemp seed oil doesn’t feel oily no matter how much of it you put to skin but it doesn’t regulate the sebum. If you have oily skin you have oily skin. 
Jojoba oil reduces the sebum production. I mean noticable reduction. If you have oily face and use it for a few weeks and then stop using it your face will be dry if you don’t put some oil or lotion on it. 

I had severe ance and very oily face and it’s scares are on my face. But Now I don’t get acne. I think acne is age related. I am 27 now.

[Abdullah]

Remove glycerin and decyl Glucoside.
Increase glutamate to %20 or more

[Abdullah]

@jemolian can we purchase this book alone or we should purchase their whole program to get the book? 

[Abdullah]

@abierose my mistake. I mean marketing. 

[Abdullah]

5cs and above that is not volatile. Below 5 is volatile. 

By the way, which book is this?

[Abdullah]

@abierose wow 
Today i learned a lot about importance of marking from your comment.
Appreciated

[Abdullah]

@Perry thanks 
What is the purpose of using petrolatum in hair products? 

Is it used in hair or scalp? 

[Abdullah]

@Perry how about petrolatum for hair? 

[Abdullah]

@Bill_Toge thanks 

Are all pure essential oils clear or some of them like lavender? 
I did purchase some vetiver EO and it is also like oil and not clear.

Is there any way to check to make sure if it is emulsion or pure eo?