Hello, I used to order Safe-B3 powder from the shop and read on the web that if there is a conductor. Ethoxydiglycol will be effective More conveying images So ordered this one. I want to know We can mix these two substances and use Can you do it? I don't make any cream for sale. But use it yourself to reduce dark spots from acne on the back sheet. Interfere with the company to provide information on usage if they can be mixed together. How to mix What is the best quantity? Interference It's easy to understand. Thank you.