Functionally wouldn't all this do is dilute the
PMMA concentration?
To give an analog, if you look at the uses Avanti has for the 10%
PMMA vs the 30%
PMMA, the former is going to be a smoother results at the expense of size.
Which makes sense,
-20ml of 10%
PMMA gives you ~2ml of
PMMA microspheres
-20ml of 20%
PMMA (like
Bellafill) gives you ~4ml of
PMMA microspheres
-20ml of 30%
PMMA gives you ~6ml of
PMMA microspheres
so now when you look at a blend of say, equal parts
HA and
PMMA
-20ml of a blend (10ml Bellfaill + 10ml
HA) gives you 2ml of
PMMA microspheres - the same total
PMMA as if you'd used 20ml of a 10%
PMMA solution
All other things being equal if you get 20ml of SOMETHING containing
PMMA, the lower the concentration the better the aesthetic resuit, at the expense of permanent increase per total injected mL of product.
I say this not to advocate one way or another, rather to give my layman's understanding of what you accomplish with a blend. Lower concentration makes for less chance of "clumping" microspheres on top of each other, greater uniformity and more ven distribution.
I wonder if there's other functional benefits to the
HA too - for example, is it going to act as a sort of lubricant for the
PMMA microspheres to help them slide over each other and flatten out for a nice even uniform layer?
Either way I can see why it would yield a seemingly more natural aesthetic result and why they would like doing it. My semi-educated guesses could be garbage nonsense, I am open to that as well.