[Abdullah]

MarkBroussard said:

Abdullah said:

Best alternative for zinc PCA?….  Assuming this is a cost issue?  A genius once  whispered to me that answer… blend zinc sulfate (super cheap) with sodium PCA….and what do you have?  

Will you have zinc PCA and sodium sulfate? 

Does it also need specific temperature, mixing speed other requirements or by just mixing them this reaction happens? 

No, you will have Zn, Na, Sulfate and PCA ions dissociated in the aqueous phase. They’re all water soluble so you just add to water and stir. On your label you will still need to list the ingredients as Sodium PCA and Zinc Sulfate … you could not claim ZnPCA as an ingredient

So will there be any effect that zinc PCA or sodium PCA has?

[Abdullah]

Yes it is effective.

What is the pH? 

At what temperature do you cook Germall plus? It should not be heated above o think 50°c.

[Abdullah]

Graillotion said:

Agree with Paprik, I believe most research has been performed at around the 4% level.  Anything above that might just be for marketing bragging rights….”Look at me….I have more than them….So I must be better!”

Best alternative for zinc PCA?….  Assuming this is a cost issue?  A genius once  whispered to me that answer… blend zinc sulfate (super cheap) with sodium PCA….and what do you have?  

Will you have zinc PCA and sodium sulfate? 

Does it also need specific temperature, mixing speed other requirements or by just mixing them this reaction happens? 

[Abdullah]

ketchito said:

@Abdullah I don’t think there’s a big risk, if you fear for hydrolisis, as long as you don’t have your mixture sitting for too long (hydrolisis takes time). Also, high viscosity of decyl glucoside restricts/delays difussion, and the more hydrophobic components of the fragrance would go into decyl glucoside’s micelles. 

Thanks

[Abdullah]

as Sil said, what is natural preservative?

I made a lotion with phenoxyethanol and caprylyl Glycol which is like this preservative blend 9:1. I was after some time it was producing gas. Perry said yeast contamination can produce gas so i added 0.1% caprylhydroxamic acid to see what happens and now it doesn’t produce gas. So maybe these products are also contaminated. The don’t have chelating agent and citric acid so the pH may also be high.

For eczema, any product with petrolatum and glycerin as first two ingredients after water is a good product. 

[Abdullah]

Quimico said:

Abdullah said:

Use some petroleum

What kind of petroleum??

I mean petrolatum. Spelling error.

[Abdullah]

Also alpha bisabolol maybe

[Abdullah]

@ketchito decyl Glucoside has pH above 10. Is it ok to mix FO with something in such high pH? 

[Abdullah]

@ketchito what ratios? 

[Abdullah]

Write in percentage

[Abdullah]

MSPdude92 said:

Hello All! I’ve been testing liquid hand soap/body wash formulations and have nailed down a formulation that performs to my liking (with various fragrance oils - it’s thick, clear, foamy, soft). 

Here is an overview of the formulation:

-SLS (20%)
-SLES (5%)
-Coco Betaine (5%)
-Decyl Glucoside (2%)
-Fragrance (0.5%)
-Sodium Chloride (1.5-2%)
-Chamomile Extract (0.5%)
-Aloe Vera Extract (0.5%)
-Optiphen Plus Preservative (0.5%)
-Water (64%)

Here are my questions

1) Water: Do I need to use “deionized” water? I’m currently using distilled. Is this okay?
no

2) Chelator: I don’t have a chelator in the formula. Will this cause an issue? I’m debating adding Tetrasodium Glutamate Diacetate .
no. But it is strongly advised to use chelating agent.
H
3) Fragrance: Is there a trick for knowing what types of fragrance oils perform well in surfactant systems? I find that some oils impact thickness & haziness. The biggest issue I experience is FOs thinning out a formulation.
i have made such product too and cant get enough viscosity,i don’t know how you did. One good way is to remove decyl Glucoside.

4) Solubility: What can I do to improve solubility of the fragrance/surfactants? Does heat help to dissolve surfactants?
just mix it. It will work fine.

5) Are there any other obvious ingredients I should be adding to help improve the stability/performance?
use chelating agent and a conditioner instead of those extracts.

[Abdullah]

What is the function of peg 12 dimethicone in that formula?

If it is as emulsifier the no you cant use dimethicone instead of it.
If it is as conditioner then yes you can use

[Abdullah]

What percentage vof SLMI are you using? 

You don’t have to dilute your essential oil in carrier oil for shampoo. 

[Abdullah]

vitalys said:

@Abdullah It can be used up to 100%

Yes, you are right. I said no one is using more than 2% because whatever benefit you want to get, you can get it from 1-2%. So no need to use 100%.

[Abdullah]

Are you using milk as claim ingredient and because your company name has milk in it or it has some benefit?

If for claim then you can us 0.00000000001% or lower. That is enough.

If it has a benefit, at what percentage minimum will it have that benefit? Of percentage is high then the only way is to make emulsion.

[Abdullah]

Graillotion said:

Perry said:

The answer is actually right on the front of the bottle: Dimethicone

It is an approved, OTC drug active for this very purpose. 

.

Would you like to take a guess,  @Perry , what the dimethicone level would be?

Do you think the polyisobutene….would have a similar result?

Aloha.

1% 

No one uses more than 1-2% dimethicone

[Abdullah]

Use some petroleum

[Abdullah]

@Perry thanks

[Abdullah]

What mentioned above+ what type of soil are they washing? This may help to know what you need. Otherwise this formula should work.

[Abdullah]

PhilGeis said:

What’s Germall III?

it was in a patent mixing formaldehyde with allantoin at different ratios. The outcomes were 

germall™ 115 which is Imidazolidinyl Urea

Germall II which is Diazolidinyl Urea
And germall III that i couldn’t find the INCI name in Google or in patent itself.

[Abdullah]

Maybe everything after water is ≤1%. 

I made a sample lotion with 5% petrolatum in oi phase, 1% Polyglyceryl 6 distearate as emulsifier and 0.3% xanthan gum as stabilizer12 months ago and it is stable yet. 

Below 1% you can write the ingredients in whatever order you want.

@Perry is says aloe Leaf Juice. Is it possible that they are using higher than water amount of juice?

Also is it ok of we use 0.5% 100:1extrat of aloe Vera at in such formula, we write aloe Vera juice as first ingredient because it equals to 50% juice? 

[Abdullah]

Mayday said:

I have lotioncrafter 90% lactic acid. I mixed 5% and 10% solutions by mass of lactate to water.

Mixing 5% lactate to water: 2.50g lactate and 47.5g water. With a 90% lactate solution to start with, I mixed 2.778g lactate(90) and 47.222g additional distilled water. I calibrated both my pH meters and measured the distilled water measured at pH 5.5 and 5.30. After adding the 2.778g lactate(90), got pH 1.9 and pH 1.84.

For 10% lactate to water: 5.306g lactate and 47.812g water. Added 3.118g lactate(90) to existing solution (not including calculations here, got messy). Got pH 1.7 and pH 1.68.

I am suspicious of the 1.2 and 0.5 because I don’t think lactic acid can get that low at 5% based on my measurements. If it’s that low, I wonder if it could be adulterated with HCl or some other strong acid. How are you measuring pH?

Thanks 
I use pocket pH meter.

I was wondering too if they are adulterated. 

[Abdullah]

Pharma said:

How did you measure pH? pH paper won’t work properly and cheap electrodes may not be linear below pH 1-2. Also, concentrated acid solutions will often not match the calculated/predicted value.

Feel free to calculate it yourself, HERE‘s how. Simply calculate Ka for lactic acid and the used concentration in molar and use these values instead.

Thanks 
I was using pocket pH meter. 

[Abdullah]

@Gordof thanks 

I have some information about formulating AHA. I just wanted to know if it will remove stratum corneum completely at any percentage or just different percentages of stratum corneum at 5-30%?

[Abdullah]

Quimico said:

If you formulated properly the final product ph will be 5-6 no need for adjustment
Use
Water 
EDTA
GLYCEROL 
SLES
CC DEA
CA BETAINE
SALT AND ADDITIVES 

I want it to be below 5