Members Directory - Chemists Corner

Abdullah

Entrepreneur

January 27, 2025 at 10:09 pm in reply to: Liquid Surfactant Blend Recommendations

Cola®Det COCO is a good one with higher active surfactants. If you want something completely liquid at RT, it will have very small total surfactants and would cost you more.

Abdullah

Entrepreneur

January 27, 2025 at 4:34 am in reply to: Any help with Glyceryl Stearate (and) PEG-100 Stearate

It depends on how much oil do you like. Start from 10%.

Abdullah

Entrepreneur

January 18, 2025 at 1:05 am in reply to: why don’t i feel the conditioning effect in my conditioner formula

You have too much conditioning ingredients

Abdullah

Entrepreneur

January 16, 2025 at 4:13 am in reply to: Analysing Unilever shampoo MSDS

@PhilGeis pH is 5.5-6.5

Package is flip top cap bottle.

Is it possible that they have more ingredients in there and didn’t mention it in MSDS?

@ketchito hehe that is enough.

Is it this patent or any other patent?

WO2014023440A1

Abdullah

Entrepreneur

January 15, 2025 at 8:15 pm in reply to: Curcylic 40 (60% Cocamidopropyl Dimethylamine. 40% Salicylic Acid)

Sci is not stable at lower pH and Curcylic 40 may have reduced its ph too much.

Abdullah

Entrepreneur

January 13, 2025 at 8:49 pm in reply to: Is AEO-9 (C12-14 E9) good for body wash and hand soap?

It may reduce foam

Abdullah

Entrepreneur

February 3, 2025 at 5:53 am in reply to: Why these H&S shampoos don’t have deposition polymer?

Here are ingredient on label for two products

https://www.iherb.com/pr/head-shoulders-clinical-strength-dandruff-defense-shampoo-dry-scalp-rescue-13-5-fl-oz-400-ml/112479

https://www.iherb.com/pr/head-shoulders-clinical-strength-dandruff-defense-shampoo-intensive-itch-relief-13-5-fl-oz-400-ml/112476

iherb.com

Just a moment...

Abdullah

Entrepreneur

February 1, 2025 at 8:42 pm in reply to: When would you feel sensitization and irritation of CMI MI and formalin?

Yes but if someone is sensitive and he uses this shampoo, when would he feel the irritation or any other side effect?

During use?

After use?

Next day?

Abdullah

Entrepreneur

February 1, 2025 at 8:38 pm in reply to: Why these H&S shampoos don’t have deposition polymer?

Thanks.

These products also have dimethicone. How would that deposit?

Abdullah

Entrepreneur

January 28, 2025 at 7:59 pm in reply to: Will mix citric acid with CAPB neutralize it’s impurities like DMAPA and LAPDMA?

Thanks. I currently add 0.3% citric acid to my shampoos. It reduces pH to ~4.5 when CAPB is present in water.<div>

Is this much citric acid enough to mix with water and CAPB and mix for some time, then add other ingredients and increase pH back to 6 or i should add more citric acid?

Also is heading the product necessary to neutralize impurities or cold mixing is enough?

</div>

Abdullah

Entrepreneur

January 27, 2025 at 10:14 pm in reply to: Any help with Glyceryl Stearate (and) PEG-100 Stearate

No

Abdullah

Entrepreneur

January 27, 2025 at 8:18 am in reply to: Effect of pH on viscosity and salt curve of SLES: CAPB mixture

Thanks for sharing your opinion

Abdullah

Entrepreneur

January 27, 2025 at 8:06 am in reply to: Will mix citric acid with CAPB neutralize it’s impurities like DMAPA and LAPDMA?

Also if i use cocamide methyl MEA as co surfactant for SLS: SLES instead of CAPB it feels milder and better scalp feel after hair is dried. I dont know if it is because of impurities in my CAPB or MEA reduces irritation of SLS: SLES more than CAPB .

Abdullah

Entrepreneur

January 27, 2025 at 7:16 am in reply to: Will mix citric acid with CAPB neutralize it’s impurities like DMAPA and LAPDMA?

No i dont run the test.

They are either preserved with formalin or CMI MI.

What else coud be the reason?

Abdullah

Entrepreneur

January 27, 2025 at 5:15 am in reply to: Any help with Glyceryl Stearate (and) PEG-100 Stearate

They don’t matter that much.

More emulsifier and more oil will give higher viscosity.

Start with 10% oil+ 3% emulsifier and see if you like it.

Abdullah

Entrepreneur

January 21, 2025 at 8:00 pm in reply to: Analysing Unilever shampoo MSDS

Thanks a lot

Abdullah

Entrepreneur

January 20, 2025 at 8:25 pm in reply to: When to add ~25% cold water in this emulsion?

Thanks a lot

Abdullah

Entrepreneur

January 18, 2025 at 12:57 am in reply to: When to add ~25% cold water in this emulsion?

Thanks

What if we don’t mix it at all after homogenization until temperature is down to 50°c?

Is it necessary to slow mix?

Abdullah

Entrepreneur

January 18, 2025 at 12:52 am in reply to: Analysing Unilever shampoo MSDS

@Perry44 thanks

When you said ”A big company like Unilever would use up to 1% silicone.”, do you mean usually silicone is used @ ≤1%?

Abdullah

Entrepreneur

January 16, 2025 at 11:06 pm in reply to: When to add ~25% cold water in this emulsion?

So it is better to take a break from high shear between 55-60°c?

Is it 55-60°c because of melting point of fatty alcohol or they don’t have any connection?

Abdullah

Entrepreneur

January 16, 2025 at 8:10 pm in reply to: Curcylic 40 (60% Cocamidopropyl Dimethylamine. 40% Salicylic Acid)

That is the same

Abdullah

Entrepreneur

January 15, 2025 at 8:37 pm in reply to: When to add ~25% cold water in this emulsion?

Thanks

At what temperature do structures usually form?

Currently i make two emulsions.

BTMS+ FA which is heated to 90°c.

SLS+FA which is heated to 60°c.

Abdullah

Entrepreneur

January 15, 2025 at 8:23 pm in reply to: Unilever patent homogenizes emulsion at <40°c. Why?

Thanks

Abdullah

Entrepreneur

January 13, 2025 at 10:58 pm in reply to: Help with hair conditioner/leave in formula viscosity

Can i ask why that temperature and not cooler?

Abdullah

Entrepreneur

January 12, 2025 at 8:56 pm in reply to: Can i mix CMI MI with glycerin before adding to final product?

Thanks

No plan on holding it.

Abdullah

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