I love this product. it removed yellowing arm pit stains on white shirts I was sure I would have to throw away. but what really made me happy was I have a white souvenir T-shirt that is 30 years old, that I've never worn. it was from a Navy base when I was overseas and had great sentimental value to me. when I took the shirt out, it had turned a horrible yellow color from age. I used boiling water and soaked it in Oxi Clean white revive overnight, my T looks brand new. I am beyond happy with how well this product works.