I have read conflicting information on which phase to add Polyquaternium 7 (and 10 for that matter). I have read from one vendor to add it to the water phase,, whereas another vendor says to add it in the cool down phase. Does it matter? And if so, which phase does it belong in?
I have also heard conflicting information about Vitamim E and whether it can be added to the heated oil phase or needs to be in with the cool down ingredients.
Thanks in advance to anyone that can clarify this for me!
Comments
For example for the Polyquaternium-7, if it's a cold process formula, add it to the water phase. If it's a heat process formula, you can add it during the cool down phase.
For the Vit E, add it during the processing where the mixture is still liquid to ensure better dispersion. For example, if it's a heated balm, add it while it's still slightly warm so that it can be mixed in. If it's a normal emulsion type formula where you have normal cool down phase below 40 degree Celsius, add it during that phase.
Thanks for helping me understand this better!
The bottom line is that it depends on the system. But no, polyquats are not heat sensitive.
Thank you!!
Hope that helps
Not endorsing the following link....but it should help. Also keep in mind this article is using scientific C, not American F. So you will never even approach the temps listed, nor the times.
You are in great shape adding it whenever you want.
You did not state the form of Vitamin E you are using?
Thermal stability of Tocopherol - Swettis Beauty Blog (skinchakra.eu)