Abdullah
Forum Replies Created
-
ozgirl said:It is 30% active.
Thanks
-
ngarayeva001 said:Spray it with Isopropyl alcohol. If it’s a foam it will collapse.
I have ethanol. Does it work?
-
Paprik said:It looks like foam to me too.
Heat it to 35 - 40°C. As you would do your stability testing.Thanks
-
@Perry should i warm it to what degree temperature?
-
The one with coco glucoside will have lower viscosity
-
Camel said:@Abdullah - I made 3% BTMS-25 emulsion with 3% C10-18 Triglycerides (oil-gelling/stabilizer), 3% esters, 2% oils and 1% OliWax. All in one water phase. It was not too thick to mix, medium-viscosity lotion.
I used low-shear, anchor paddle mixer at low-medium speed only. It’s stable for 2 months now.
BTMS-50 should make thinner emulsion because it has less thickener in it, I think.
Do you mean you added oil and water phase together when cold and heated then and mixed together?
-
@Camel @Cafe33 thanks for sharing
I made 2 batches today
1. 2% BTMS and removed GMS. Same problem
2. 2% BTMS but after adding oil phase to water, i didn’t use stick blender. Instead i mixed it with spoon by hand. This time it two phases were not mixing no matter how much or how fast or slow i mix it and the oil phase came on top and trying to combine with each other. Then I homogenized it and it became thick again.
Tomorrow i will make sample with liquid oil to see if petrolatum is the problem but i hop it is not because it is a much for my lotions.
-
What is it for and what is the batch size?
Maybe a metal spoon work.
That is what i use for samples
-
Can you tell me your company name please
-
I think you like your shampoo because you haven’t used a good shampoo before.
Just use a Shampoo with silicones or better a Shampoo+ a conditioner with silicones and you will see how inferior your product is compared to them.
-
PhilGeis said:https://cosmeticseurope.eu/files/5914/6407/8121/Guidelines_on_Stability_Testing_of_Cosmetics_CE-CTFA_-_2004.pdf
In this case, to ensure the product has enough preservative capacity to protect during use.
Thanks
-
@Syl thanks
@Cafe33 thanks. That may be the case.
Some more questions as you are experienced.
1. By typical mixing, do you mean homogenizer or high shear mixer?
2. What is the speed of your Anchor paddle?
3. Do you also homogenize it or just Anchor paddle mixing is enough?
Is it so just with BTMS 25 or BTMS 50 and BEHENTRIMONIUM CHLORIDE too?
I am currently using SPDMA but want to change it to something with behenyl in it.
-
Dont waist your time trying to synthesize dimethicone. Just purchase it ready made.
Synthesizing it requires equipments too that only large companies afford it.
-
PhilGeis said:PET and an estimate for stability qualification.
Conditioners are applied in and around showers and tubs - water gets in during use. Tap water usually has pseudomonads - esp. aeruginosa.
https://journals.asm.org/doi/abs/10.1128/aem.56.5.1476-1479.1990Thanks
What does “estimate for stability qualification” show or is about?
-
Thank a lot
-
Dimethicone reduces viscosity a lot.
For me 0.3% dimethicone 5 cst reduces viscosity by half.
1% percent dimethicone is more than enough.I suggest these changes for viscosity and function.
Petrolatum 4%
Glycerin 4%
Dimethicone 1%
165 1%
Montanove l 1%
GMS or fatty alcohol 2% -
amitvedakar said:I think 4% CDEA works as thickener in our formula. I think nacl requirement depends of brands of surfactants. As my CAPB comes with SB.
That is a lot of DEA.
How much total surfactant do you have? -
PhilGeis said:Different folks publish different numbers - and remember, you have a product not a simple solution.
Will it be different if it is in the product or only water?
If yes then it should be better in product because there is surfactants and oil phase and other ingredients in product too so glycerin or NACL to water ratio is higher than only glycerin or NACL in water. Isn’t it so?
-
Microformulation said:How will you be measuring Aw?
I will not measure it myself. I will use the data from those who has already measured it.
Like this one for example.
-
@PhilGeis should i ask them for pet test or something more specific?
-
PhilGeis said:Eurofins has many global labs. Maybe one somewhere near you might offer PET. https://www.eurofins.com/contact-us/worldwide-interactive-map/
That % might effective. Question is its stability through consumer use,
Historic - development of synthetic surfactant shampoo - classic parabens/benzoic were not effective and marketed products used formaldehyde, then to formaldehyde releasers and in 80’s to isothiazo9linones..Yes it is available in Pakistan. I will contact them.
What would be the problem with it’s stability during consumer use?
It has flip top cap and cosumer will not touch inside the bottle.
Bottle is PET but is is not transparent and green color. -
Camel said:Abdullah said:I said so because in my opinion 1% HEC will not have pleasant skin feel and i don’t know if lower amount of it will stabilize the emulsion.
0.3% xanthan gum i know that can stabilize the emulsion.If you are ok with the feeling of your product then there is no problem with HEC.
I will try making a version with 0.3% xanthan gum instead of HEC and see how it compares. Thanks for your advice!
Please share your results with us too
-
ngarayeva001 said:The ingredient is in the freezer . Regarding product stability, you add BHA and BHT and put the product in a non transparent airless pump. It oxidises, but slower.
Got it
Thanks -
ngarayeva001 said:The ingredient is in the freezer . Regarding product stability, you add BHA and BHT and put the product in a non transparent airless pump. It oxidises, but slower.
Got it
Thanks -
ngarayeva001 said:It is very pricy but in case you want to have an option
https://www.myskinrecipes.com/shop/en/anti-wrinkle/9221-retinol.html
I keep mine in the freezer.
I think It is water, air and light that reduces it’s effectiveness.
How does freezer help it’s stability?