[Abdullah]

You should write that what your product is. So we can see if we can do any help on that type of product.

Also, a review by a more experienced chemist would cost more.

[Abdullah]

Can you write it to see how complex it is

[Abdullah]

2. not important

3. As emulsifier when used with another emulsifier

4. First high speed then slow speed

5. Yes phenoxy reduces viscosity

[Abdullah]

Yes it would work.

Start from 1% each and change according to your desire.

[Abdullah]

I do regularly check Cereve, Pacifica & The Ordinary for their New products and patents and can help in products with ingredients like these three companies.

I have experience in making emulsions (anionic, cationic & nonionic), hair conditioners, skin and hair cleansers and serums with actives like salicylic acid, niacinamide, AHA & hyaluronic acid.

I don’t have experience in sunscreen.

[Abdullah]

<div>Can you name that top ingredient or complete ingredient list of Pacifica?</div>

Also Hand made means the producer can’t afford the machine.

[Abdullah]

Hi @LeonB

. My tanks and mixing equipments are all metal and SS. I have tried to but sodium hydroxide alone did damage my equipment in sample making with ~10 minutes contact time. So i want to avoid them for this reason. Maybe my method was wrong.

. It is laundry liquid

. Don’t have any anti foam yet. I wanted to add some ≤0.5% cocamide DEA too. Of course it increases foam but also cleaning power.

. Don’t know about these ingredients

. Currently don’t have access to enzymes but can import them.

[Abdullah]

Good point

Thanks

[Abdullah]

Of course SLS is stronger but 50:50 blend foam much better than 9:1 or just SLS. I don’t know about cleaning power though

[Abdullah]

Got it

Thanks a lot

[Abdullah]

I don’t know anything about DCMIT. What are your comments on this?

Surfactant is SLES.

[Abdullah]

It is 4,5-Dichloro-2-methyl-4-isothiazolin-3-one.

It also has

Mg chloride 4-8%

Mg nitrate 14-18%

For premix, isn’t isothiazolinones stable at 10% surfactant solution?

[Abdullah]

They say it has 14% CMI MI active at 3:1 ratio and also 0.009% DCMIT.

Is this spec ok for cosmetic use?

I would use only 3ppm active CMI MI in final product.

Also, as this 14% active is very concentrated, i want to make a blend if 10% SLES and 10% of this preservative to make it 1.4% active and then store it and use it for smaller batches or sample making. Is this method correct?

[Abdullah]

Time would be more depending on temperature, viscosity and homogenizer size. It would be much more than 2 minutes.

I dont count rpm, so lower is better. Maybe 100rpm

[Abdullah]

4. At first high speed, time depends on batch size. Sample size 1-2 minutes. Then slow mix. No need high shear mix

[Abdullah]

Then add some FO

[Abdullah]

Thanks

[Abdullah]

@chemicalmatt hello

Thanks of the advice

Eid Mubarak to you too

[Abdullah]

Thanks

[Abdullah]

Yes

[Abdullah]

If you are using BTMS 25, just use it the way it is. If you want more viscosity then increase BTMS quantity.

[Abdullah]

Don’t add extra fatty alcohol to it and yes it would be stable

[Abdullah]

Use some sodium benzoate and reduce pH.

[Abdullah]

Thanks a lot

[Abdullah]

Thanks

Should we also not dilute Kathon ICP II with water the same as Kathon ICP before adding to finall product or it is stable for this?