Ivf - products to avoid?

Hello ladies. My sister is starting ivf soon and she was given a list of products to avoid using during the process. Stuff like: some deodorants, perfume, etc. I’m currently all natural with the products and cleaners that I use so she has asked for my help in finding safe products to use.

Can anyone tell us what ingredients in these products are a problem? I’m assuming it’s parabans and any other estrogen mimicking chemicals but wanted to check and see.

On a side note: I have had friends go through this process before but I have never been this close or involved in the process before. I have a whole new respect and love for everyone and anyone who is or has gone through this ordeal. So much love and baby dust to all of you strong and beautiful ladies!!