Hello. I wanted to ask if Kmax hair fibers contain any formaldehyde releasing agents such as DMDM hydantoin or any other similar ingredient. As you probably know, there is a lot of talk about this ingredient as well as formaldehyde these days and the user or potential user can be worried or stressed. I have the same question about ammonium chloride or ammonium bicarbonate, since these are ingredients that some other brands use. So, when you say "natural" you mean there are no chemical substances or added ingredients used in the whole process or even in the colouring? I am asking this because i read somewhere (correct me if I am wrong) that keratin fibers are of animal origin and they can not be produced without any chemicals. Thanks a lot and really looking forward to your answer, i hope to hear from you soon.