Didn't notice a difference

I got a free sample of this expanding floss when I purchased my usual floss. I tried it once and I really didn't notice a difference. I couldn't feel it 'expanding' and I didn't really notice a difference between this and my regular stuff. I definitely wouldn't recommend.

This is my favorite floss to date. It's easy to stretch between teeth and it expands as you use it. A little hard to find and pricy for a roll of 40 m, but worth it. Some places have good sales for it, just not in my area.