With the temperature and sweat factor rising, it’s time to break out the big guns. But not antiperspirant! Those are typically chock full of toxic chemicals that some scientists believe are linked to breast cancer, not to mention parabens and phthalates, which mess up your hormones. I had been curious about Schmidt’s Natural Deodorant ever since I read the rave reviews: Everyone from Alicia Silverstone to my friend Sophie Uliano of Gorgeously Green claimed it keeps you drier than other natural deodorants. But could Schmidt’s really keep up with 100-degree weather? I planned on finding out—especially since I had just hooked up my Mommy Greenest friends (read: you) with a…