hello
formula can be mixed
Recommended to reduce Allantoin down to no more than 0.5% of the water in the formula (in this formula is Rose Petal Water ).
It's not necessary to put in the refrigerator. But if it can be stored in the refrigerator, it can help preserve the ingredients even better.
Mix Aristoflex AVC in Rose Water until you get a gel texture. After that, add the rest of the ingredients into the gel. Blend together. If the hand person should be able to do it. But people for a long time