1. If using Allantoin o.5% Must use natural betaine to dissolve silk? 2. Allantoin If put in refrigerated cream, do not put more than 0.2%? Is 0.2% enough for protection? Irritation? 3. Allantoin can be used to mitigate allergies? or only irritation 4. Allantoin with Dipotassium Glycyrrhizate Which ...