?but when I do, I use Assos.
I would say on average my taint is more sensitive than most. So if I'm going out for a century or all day ride, I take extra precautions by putting some of this stuff to reduce the friction. I invest in shorts with a good chamois and find the Assos chamois cream makes the ride a bit more comfortable.
I've never had an allergic reaction, but after reading one of the other reviews I may pass on using chamois cream in the future do reduce the amount of chemicals put on my skin.