I'm not someone that sweats profusely, but summer is approaching, and I do sweat when it's hot out. I've found that when i wear my short sleeved knits, which fit quite close to the body, the armpits soak up all the sweat. This isn't a problem with looser fitting clothes since the fabric isn't right up in my armpit. I want to use an anti-perspirant but I dont want yellow stains on clothes i spent a lot of money on. I remember reading that it's the aluminum in the anti-perspirants that causes the hard to remove stains. Are there any products that use something other than aluminum?