[NguyenDuy]

simona said:

Sorry , everyone, I had a couple of really difficult weeks in the office so I could not focus on anything else. 

@DavidW - what I indend to do is a leave in 2% SA exfoliating gel. I am planning for the next week to use 1% Na Citrate, when I will have some spare time. Also, thinking to use 15% PG from start. the pH I am aiming to reach is 3.5 - 3.8. Preferably 3.5.

THanks, everyone, for all advices! I will definitelly follow up here with my next experiment’s results. 

15% PG will not help you resolve the problem. I’ve made some sample and the Glycol must use at least 20% - 25% to make SA not recrystallization. And with 30% glycol you can add at least 10% AHAs to your formulation

[NguyenDuy]

@chemicalmatt thanks for your comment. 

[NguyenDuy]

Thanks for your comment. The viscosity of my cream is good and it can leave a layer when apply to the skin. i made some sample with no silicone in there and i got the same problem. It work but the stablity is unstable.