You may notice the ribbons are appearing on all kinds of consumer products -- from marker pens to water bottles and even golf clubs.
The idea is to raise awareness and money to fight a disease expected to kill 40,000 women this year.
However, the American Cancer Society warns a pink bow doesn't necessarily mean your purchase will support cancer research.
Many companies put a cap on the amount they will donate and if you look closely at labels, or go online, you can find out how much companies will actually donate.