I would like a little clarification on the correct process for adding hydrated HA to an emulsion. I have seen several comments to the effect that it should be added post emulsification, to avoid some sort of disruption.
Where it was confusing to me.... was I have not seen a clear explanation of what the disruption is, as well if the form of the HA made a difference? Is there a difference between adding dry HA....and a pre-hydrated solution of HA, in regards to timing?
So, working with these facts.... I would like for someone to extol on the correct process of adding HMW HA to emulsions (and why...yeah sometimes I'm like having a two year old
1) I only add hydrated HA to emulsions. I create a 1% HMW HA that is preserved and used as needed.
2) I only use small amounts of this slurry, typically 1-4%.
3) I only use HMW HA.
So, I have made the formulas with adding it to the water phase, and adding it post emulsion. I have not seen any difference with either method.
I tend to add a lot of ingredients post emulsion, so I always feel like I should add as much as possible up front, to minimize the post emulsion add in percentages. Maybe this is not important, but somehow my mind wants to minimize the post emulsion add-ins.
My current project will preclude me from using polymerics, so I am going to be increasing the HA in hopes of creating some of that gel undertone, so it is becoming a little more important to me.
Look forward to your feedback.