How to prevent 40% urea cream from crystalizing

ProfessorHerb

All of my formulas eventually crystalize, is there any way to help slow down crystallization? My creams are painfully impaling my customers!!

Paprik

I would check old discussions mate. There's been some good ones about Urea. 

Pharma

How many % urea do you have with regard to water?

ProfessorHerb

40% with 20% water and 18% vegetable glycerine