Hi Jolie,
For what seemed to be ages, I looked, just like you, for a ton of remedies to remove those cursed stains. Nada, zero, zit helped me! So it was nothing short of a miracle when a girlfriend introduced me to sweat proof undershirts. I didn’t test out more than one brand (I use sweatshield), but believe me you don’t need to look further. You’ll forget about those yellow pits and all the nightmares around them.
Thank you! Love your work!